Ubuntu CD image build software

UEFI boot live-usb bricks SAMSUNG 530U3C,np700z5c laptop

Reported by tadazmas on 2012-08-23
406
This bug affects 62 people
Affects Status Importance Assigned to Milestone
Release Notes for Ubuntu
Undecided
Unassigned
Quantal
High
Unassigned
Ubuntu CD Images
Critical
Unassigned
linux (Ubuntu)
Critical
Colin King
Oneiric
Critical
Colin King
Precise
Critical
Colin King
Quantal
Critical
Colin King

Bug Description

I cannot provide detailed log massages because laptop is bricked right now.

If you have courage to try it select UEFI boot from bios and than try to boot laptop using liveusb (made form Precise Pangolin 12.04.1 amd64).

Laptop hangs up in black screen. If you force power-off, after it, laptop wont start. I mean it not event start bios, just black screen no sounds nothing.

I filing this report, because i already bricked second laptop. At first i thought it was unrelated issue and laptop was fixed by warranty service (replaced motherboard), but after second time i quite sure.

summary: - UEFI boot bricks SAMSUNG 530U3C laptop
+ UEFI boot live-usb bricks SAMSUNG 530U3C laptop

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in debian-installer (Ubuntu):
status: New → Confirmed
Ludovico (aasonykk) wrote :

I confirm it.

I selected UEFI from bios and durind the loading of Ubuntu 12.04.1 from liveusb it freeze. I long pressed power button and it bricked the laptop.

I have the same version 530U3C

Dave Gilbert (ubuntu-treblig) wrote :

Bricking a laptop seems pretty evil on a live image; doubt this is actually debian-installer though.

Changed in debian-installer (Ubuntu):
importance: Undecided → Critical

I confirm it, too. Exact the same procedure - maybe I should have read this before. It seems not to happen, if UEFI-Boot-Support is deactivated in BIOS.
Same Laptop Version for me: 530U3C A01

Colin Watson (cjwatson) wrote :

Yeesh. I hate UEFI - this should clearly be impossible with correctly-written firmware.

How did you go about creating the live USB image? The 12.04.x images don't have the right bits to make this work by just dding the image to a USB stick, but the usual failure mode is simply that the image is only bootable in legacy mode, not that it is available for UEFI booting but bricks the machine. Did you dd or otherwise raw-write the image to a USB stick, or did you use some program I don't know about to convert it?

If somebody has an unbricked but otherwise appropriate laptop and is willing to risk it, it would be worth trying out a recent 12.10 daily, because this is built in a somewhat different way which should allow for proper hybrid UEFI CD/USB booting. If this works, we could backport that to 12.04 without too much trouble.

affects: debian-installer (Ubuntu) → ubuntu-cdimage
Ludovico (aasonykk) wrote :

@ Alex : click on the top of this page "yes, this bug affect me"

@ Colin Watson: I created the live usb with "Startup Disk Creator" using Ubuntu 12.04.1. Sorry but now I can't try 12.10 with UEFI enabled.

... sorry I forgot. Now this bug infects me too.
I created the stick using "usb-creator-kde" from kubuntu version 11.xx., I think.

One more, maybe important notice.
I succsessfully booted the image, having UEFI-support disabled in BIOS.

But there was a difference in boot procedure, before it bricks the machine:
1. There was an message on a black screen: "Unknown prefix", or similar - it was not there, with UEFI-Support disabled.
2. The grub-boot-loader poped up and I could choose between installing or trying out.

First time I switched of the notebook, after seeing grub and it was still working (because I could remember, that I did not get this menu before - the installer just booted)
Second time I got grub again, I selected "Try .... ", then the machine freezes, I switched it off (by long pressing power-button) - and it was a brick.
Maybe this is a notice, for those, who want to try out 12.10 - if you see the grub-menu - be careful.

Ludovico (aasonykk) wrote :

I confirm that when I enabled UEFI and the beginning it displayed a black screen where I could choose between try Ubuntu, install ubuntu, test ram etc.
I selected the first option (I don't remember which was, try live cd ubuntu? ) and during the loading it crashed and bricked my laptop.

But when I replaced the laptop, with UEFI disabled, the live cd (usb) start automatically without the black screen.

Martin Exner (martinexner) wrote :

I managed to install ubuntu 12.04 amd64 right now on my 530U3C-A01DE.
What i did was:
First boot windows and do a BIOS-Update, then check that UEFI-Boot is disabled there (the BIOS lags like hell by the way, no idea why).
Then i flashed the ubuntu 12.04 ALTERNATE(!) iso to a sandisk curzer titanium 2GB usb key and bootet from that.
Everything worked perfectly and still works perfectly :-)

tadazmas (tadas-mineikis) wrote :

Could you write your BIOS version which works?

tadazmas (tadas-mineikis) wrote :

If you check UEFI boot disabled in BIOS it works for sure, but if you enable UEFI mode and try to boot live-usb you will brick laptop.

Martin Exner (martinexner) wrote :

BIOS version: P05AAJ

Davpal (davpal) wrote :

Same problem and waiting for laptop repairing.
In my case the scenario was the following:

- Update de bios to lastest.
- Enable UEFI-Support.
- boot ubuntu 12.10 Alpha from usb created with unetbootin.
- Install ubuntu.
- Reboot.
- Start windows 7.
- Reboot.
- Black screen.

Laptop model: NP530U3C A01

XclusR (xclusr) wrote :

Is there are any solution for this bug?

I have enabled UEFI-Support,
booted from Ubuntu 12.04 live-usb

Laptop stucks in blank screen.
After power-off cycle it shows only black screen.

I have no chance to boot up or enter to BIOS?

Is there any hardware way to reset BIOS settings? Will it help?

Laptop Samsung 530u3c with 24 Gb Express-cache.

Ludovico (aasonykk) wrote :

@ Xclusr: I think isn't possible reset the bios (cmos memory) without open it. Return the laptop to the seller and ask for a replacement.

Colin Watson (cjwatson) wrote :

@Davpal (#14): I have no idea what unetbootin does to USB images, I'm afraid. 12.10 images should be bootable from USB if they're just written directly to the drive (dd or similar) - diagnostically, I'm a lot more interested in that.

Thomas Gonet (gonet-thomas) wrote :

Same bug with the same procedure as OP for me with a samsung serie 7 chronos (np700z5c). The problem seems to be samsung related and not model related ... 2 laptop bricked too.

Are we sure that if we doesn't enable UEFI support no more brick can happened ? I'm thinking about my next laptop (same model or other brand)

Dave Gilbert (ubuntu-treblig) wrote :

Thomas:
  I doubt it's generic to other vendors, but it's not too surprising that Samsung are sharing code among different models in their range, and I think uefi support is required for some systems, so it's difficult to remove, and at this point it's difficult to say exactly
which bit is broken.

  Thomas (and any of the other victims), can you confirm which version of unetbootin you used to generate the USB image?

(And as per Colin's comments in #17 any reports of it happening with something other than unetbootin would also be interesting).

Dave

summary: - UEFI boot live-usb bricks SAMSUNG 530U3C laptop
+ UEFI boot live-usb bricks SAMSUNG 530U3C,np700z5c laptop
Thomas Gonet (gonet-thomas) wrote :

Thanks for your answer ! I have used the next version of Universal USB installer (1.9.1.1) (pendrivelinux.com), not unetbootin.

I love this laptop but this bug is annoying ... i'm waiting to decide if i'm going to buy the same one or an asus. (n56vz for exemple) but If we are sur that leaving uefi disabled solve this, it's ok for me ;)

Ludovico (aasonykk) wrote :

@20: after I disabled UEFI on 530U3C BIOS, I installed without problems Ubuntu 12.04.1

I think is the same with your laptop.

Thomas Gonet (gonet-thomas) wrote :

Thanks Ludovico. It's just post #8 that makes me ask ;) I'll probably re-order one tomorrow.

Colin King (colin-king) wrote :

Just to add, on UEFI machines that got bricked like this I removed the battery and disconnected the CMOS NVRAM battery and this restored the machine to the factory default and fixed the issue for me.

Thomas Gonet (gonet-thomas) wrote :

It didn't work for me ... have you ever tried with a samsung's laptop ?

antonio (emilmart10) wrote :

Same problem here. I have a Samsung 300e5c and I have bricked 2 laptop. After formatting the HD and installing win7 ( from original CD ), then is appeared a black screen and I can do NOTHING.
Someone has resolved ?

antonio (emilmart10) on 2012-09-25
no longer affects: ubuntu
Miguel Muñoz P. (mmunoz) wrote :

I have the same problem with a laptop (a second time)

Is a ubuntu-12.04.1-desktop-amd64.iso

Usb created with Ubuntu Live USB creator

I have enabled UEFI-Support

Laptop stucks in blank screen.
After power-off cycle it shows only black screen

It is the second laptop and I do not think you can return to the warranty, you can reset the BIOS on this computer? help please

(sorry for my English, I have been supported by google translator)

Laptop: NP530U3C-A02CL

Jose Padilla (sargepl) wrote :

Same here.

In my case I enabled UEFI and then booted Ubuntu 12.04 from a USB drive created from Windows 7. I choose "Try" in Grub and when the Unity desktop was on the display I pressed one of the bright keys. Then the desktop hung up. After that I pressed the power button for a while in order to shutdown the system and when I turned it on it had been already bricked.

It's a pity this laptop is affected by this bug. I really like it and I would consider to buy another model from another brand if the support service doesn't repair my laptop.

Laptop: NP530U3C-A01ES

Eirik Mikkelsen (eirikmik) wrote :

Confirmed on a NP700Z3C. Wow, didn't realise this was even possible. I will turn off UEFI in BIOS from now on.

Since my laptop was bought less than 30 days ago, I was able to exchange it for a new one (last in stock) - no questions asked!

Colin Watson (cjwatson) wrote :

FWIW, I escalated to our folks internally who deal with BIOS issues and they agreed with me that this is likely a UEFI bug that Ubuntu can't do much about; but I haven't heard anything back regarding escalating it to Samsung yet.

Steve Langasek (vorlon) on 2012-10-11
Changed in ubuntu-release-notes:
status: New → Triaged
importance: Undecided → High
Pavel Tetyaev (pahanini) wrote :

Confirmed at NP700Z7C, tried to install from USB Flash Ubuntu 12.04 desktop amd 64 created with unetbootin.

PS. Does anyone know how to unbrick laptop now?

Changed in shim (Ubuntu Quantal):
status: New → Confirmed
importance: Undecided → Critical
Steve Langasek (vorlon) wrote :

why have you assigned this bug to shim?

Changed in shim (Ubuntu Quantal):
status: Confirmed → Incomplete
Kate Stewart (kate.stewart) wrote :

From discussions with Michael earlier: shim task was opened to make sure bug was on release team radar, and hopes that either shim or grub may be able to participate in detection/mitigation. Issue some sort of "WARNING: don't do this, Ubuntu can't run on this firmware" if specific firmware identifier is detected, before UEFI progresses? If this is not the case, task should be marked as invalid.

Steve Langasek (vorlon) wrote :

The conclusion from the kernel team is already that it's not possible to work around this bug; and shim is *definitely* not the place for such a workaround to live because each revision of shim involves a round-trip to Microsoft. If anything's going to block the boot, it needs to be the kernel itself.

Since this bug is already assigned to the release notes, it's already on the release team radar AFAICS. But in any case, our best firmware people have already concluded there's nothing we can reasonably do here and the firmware just needs to get fixed.

Changed in shim (Ubuntu Quantal):
status: Incomplete → Invalid
Changed in ubuntu-release-notes:
status: Triaged → Invalid
importance: High → Undecided
crayzeewulf (crayzeewulf) wrote :

I confirm that this happens even with Ubuntu 12.10. Bricked on today. :(

Steve Langasek (vorlon) wrote :

crayzeewulf, I'm sorry to hear that you've run into this bug. I hope you are able to get the machine recovered through the vendor.

It would help us to track this bug down and spare other users this pain if you could provide more information about how you were installing and what you experienced.

 * Can you confirm that you had specifically configured your BIOS to boot in UEFI mode?

 * Can you tell us how you prepared the USB stick for booting? For instance: did you write the image to the disk using unetbootin, or with Startup Disk Creator, or with another tool (which one)? If using unetbootin, what OS did you use to do the writing?

 * When you tried to boot the image, what happened? At what point did the machine become unresponsive?

Hopefully you can take the time to answer these questions.

crayzeewulf (crayzeewulf) wrote :

Steve:

I did not expect this to happen in my wildest imagination and, hence, did not pay too much attention to the exact steps I followed. But I will try to answer your questions the best I can:

> Can you confirm that you had specifically configured your BIOS to boot in UEFI mode?

Yes. I tried booting the computer using the 12.10 (64-bit) USB stick but it would not recognize it as a bootable device. I tried changing several obvious things in the BIOS such as the boot device order. But these changes did not work. Eventually, I found an option that said something to the effect that enabling it will allow both legacy and UEFI boot. I remember that it was on an unexpected place in the BIOS (AFAIK). This allowed me to boot from the USB stick.

> Can you tell us how you prepared the USB stick for booting?

I used Startup Disk Creator from another machine that was running Ubuntu 12.04.1 (64-bit).

> When you tried to boot the image, what happened? At what point did the machine become unresponsive?

The machine booted up from the USB stick. During the initial stages of the boot process the screen blinked and I saw a UEFI-related message on the top-left corner of the screen. The message was only displayed for a fraction of second so the only words that I remember were "UEFI" and "secure". Also, the message consisted of only about four of five words.

After this I saw the familiar Ubuntu bootup screen with the image of a keyboard and a person/stick-figure at the bottom of the screen. I usually press space bar at this stage and select the option for installing Ubuntu on the system instead of using it as a "live cd". This is what I ended up doing. I figured that it will do its thing and take me through the installation process next. At this point I went away to do something else hoping to return to the installation screen in a couple of minutes. However, I returned to a black screen containing several error messages. These were not kernel oops messages as far as I remember. The messages complained about something going wrong with the CPU (sorry, I should have written these down but that is all I remember).

I was using a really really really old 1GB USB stick that I had dug up from a forgotten corner of a couch. So, I immediately blamed it, ignored the error messages, recycled power, and started my quest for another USB stick. After this the computer never booted up. :(

> I hope you are able to get the machine recovered through the vendor.

Lets hope so.

My Samsung lappy brick twice, but it is different in my case. The BIOS always broken aftere doing update from update manager.

1. Install Ubuntu
2. Boot normaly(no grub)
3. Update(Update Manager)
4. Reboot
5. Grub appeared from nowhere
6. Select ubuntu
7. Boot forever
8. Power off
9. Black Screen

Dave Gilbert (ubuntu-treblig) wrote :

Albert:
  Can you add some detail please;

   1) what model of laptop do you have?
   2) When you say it's bricked twice - that's confusing, do you mean you've permenantly unrecoverably bricked two laptops, or do you mean you somehow recovered them?
   3) What version of Ubuntu did you install at (1) ?
   4) The boot at (2) was that a normal boot after the installation?
   5) In (3) did it upgrade to a new version of Ubuntu (which?)
   6) Had you ever selecting the EFI boot options?

Dave

allocerceau (pkhbdb) wrote :

OK, so I just found out this bug while bricking my samsung laptop. I had trouble de install a windows 7 pro version over the home premium one, so I decided to try and install ubuntu.
I have (had ?) a series 3 samsung laptop, and tried to install 12.10 version of ubuntu.
The installation went well, until the computer rebooted to "blank" purple screen. I couldn't even shut down the laptop with a long press on the power button, so I forced shut down by removing the power cable. When I tried to power it on, I had and still have nothing on the screen (it powers on but nothing happens).

I tried to clear cmos by removing the battery inside but it was no use.
Connecting to another screen didn't help as well.
I also tried to long press the power button without any power supply (cable or battery).

I don't know what to do, and feel like I just lost 500€ (the laptop was never used). I am pretty upset.

Dave Gilbert (ubuntu-treblig) wrote :

pkhbdb/allocerceau: Can you state the exact version of the samsung laptop you had/have.

When you did the installation, how did you install - did you use a CD or USB stick? Did you at any point select 'EFI' during the boot process? If you used a USB stick how exactly did you right the thumb drive?

Dave

Steve Langasek (vorlon) on 2012-12-19
affects: shim (Ubuntu) → linux (Ubuntu)
Changed in linux (Ubuntu):
status: Invalid → New
tags: added: kernel-key
Brad Figg (brad-figg) on 2012-12-19
Changed in linux (Ubuntu):
status: New → Incomplete
Steve Langasek (vorlon) on 2012-12-19
Changed in linux (Ubuntu):
status: Incomplete → Confirmed
Andy Whitcroft (apw) on 2012-12-20
Changed in linux (Ubuntu):
assignee: nobody → Colin King (colin-king)
Changed in linux (Ubuntu Precise):
importance: Undecided → Critical
Changed in linux (Ubuntu Oneiric):
importance: Undecided → Critical
status: New → Fix Committed
Changed in linux (Ubuntu Precise):
status: New → Fix Committed
Changed in linux (Ubuntu Quantal):
status: Invalid → Fix Committed
Changed in linux (Ubuntu):
status: Confirmed → Fix Committed
Changed in linux (Ubuntu Oneiric):
assignee: nobody → Colin King (colin-king)
Changed in linux (Ubuntu Precise):
assignee: nobody → Colin King (colin-king)
Changed in linux (Ubuntu Quantal):
assignee: nobody → Colin King (colin-king)
Luis Henriques (henrix) on 2013-01-07
tags: added: verification-needed-oneiric
Luis Henriques (henrix) on 2013-01-07
tags: added: verification-needed-quantal
Luis Henriques (henrix) on 2013-01-07
tags: added: verification-needed-precise
Luis Henriques (henrix) on 2013-01-11
tags: added: verification-done-oneiric verification-done-precise verification-done-quantal
removed: verification-needed-oneiric verification-needed-precise verification-needed-quantal
Changed in linux (Ubuntu Oneiric):
status: Fix Committed → Fix Released
Changed in linux (Ubuntu Precise):
status: Fix Committed → Fix Released
Changed in linux (Ubuntu Quantal):
status: Fix Committed → Fix Released
Steve Langasek (vorlon) on 2013-01-19
Changed in ubuntu-cdimage:
status: Confirmed → Invalid
161 comments hidden view all 241 comments
frantoms (frantoms) wrote :

Hi All,

I just install ubuntu 13.04 64bit on my samsung series 5 (NP530U3C) and works well. Is fast and I don't have any problems with drives or batery.

Fisrt I update the bios to the last version.
Disable UEFI on Bios and secure boot
Change boot device order with USB HDD on top
Install 13.04 64bit from liveUSB.

Partitions:

sda1 SYSTEM 200mb
sda2 WINDOWS 7 82GB
sda3 swap 8GB
sda4 ext4 ---> /home 340GB
sda5 RECOVERY SAMSUNG 16GB

sdb1 ext4 ---> / 24GB

Set sda (HDD) as boot disk!

Good luck!!!

Žygimantas Beručka (zygis) wrote :

Here's a very fresh update on the matter from the fantastic Mr. Matthew Garrett: http://mjg59.dreamwidth.org/25091.html

Here's the summary of it:

"Hence this patch. The new approach is to ask the firmware how much space is available. If the size of the new variable would reduce this to less than 5K, we attempt to create a variable bigger than the remaining space. This should cause the firmware to realise that it's out of room and either (depending on implementation) perform a garbage collection run at runtime or set a flag that will cause the system to perform garbage collection on the next reboot. We then call QueryVariableInfo() again to see whether a garbage collection run actually happened, and if so check whether we now have enough space. If so, we go ahead and write the variable. If not, we tell userspace that there's not enough space.

This seems to work in all the situations I've tested, and it should avoid ending up in a situation where a Samsung can end up bricked. However, it's firmware, so who knows whether it's going to break things for someone else."

The aforementioned patch can be found here: https://lkml.org/lkml/2013/6/1/200

So my question, or rather begging, would be may somebody from the Ubuntu kernel team backport this patch so that it would be available on (at the very least) daily images of 13.04 (or older folks who prefer it)? So that people would be as safe from being affected by the bug as much as possible?

omega99 (v55222) wrote :

My notebook: Samsung 530U3C
My problem: F2 doesn't work; I am not able to change BIOS settings.
Supposed reason: backup and recovery with Acronis

Val (vk1266) wrote :

Steve or anyone who has access to the lines of communication with Samsung engineering team!

PLEASE can you ask the Samsung people to PLEASE clarify whether this bug has been fixed in the latest firmware? Or at least if they believe that it has been fixed?

I am willing to risk my NP700Z5C and test the new firmware by loading 'samsung-laptop' in the UEFI mode to bring back some functionality that is not otherwise available in the UEFI mode, such as the video camera device and keyboard backlighting IF there is a word from Samsung that yes indeed, they have looked into this issue and tried to fix it.

Without a word of communication from Samsung, it's too risky to try anything in the UEFI mode, IMHO.

GILBERT (t-gilbert1) wrote :

Hi,

I recently installed ubuntu 13.04 on my laptop NP700Z5C-02. The installation went well by but I am unable to launch windows. The laptop does not brig. On the other side I don't know how to recover Windows partition.
You have to go into the bios and change the boot order of drives (not very nice)

Error: Invalid EFI file path

Here is how I did:

• updated the bios from windows P06ABJ
• free space on the Windows partition
• Disable bios fast fashion
• I left the secure boot (enabled)
• Install ubuntu from USB key

Val (vk1266) wrote :

@Gilbert: see paragraph no 14 in post #114 for a fix to this problem. It's a known bug in update-grub - Windows EFI boot entries are not generated correctly.

The aforementioned modified UEFI anti-bricking code has been released in
Linux 3.10-rc6, see:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f8b8404337de4e2466e2e1139ea68b1f8295974fI
hope it really works. :)

Hopefully, this kernel will be included in Saucy images/daily images... If
it's not, does anyone know how to make a Raring/Saucy install image with
3.10-rc6 kernel debs taken from the mainline kernel PPA?

2013/6/13 Val <email address hidden>

> @Gilbert: see paragraph no 14 in post #114 for a fix to this problem.
> It's a known bug in update-grub - Windows EFI boot entries are not
> generated correctly.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1040557
>
> Title:
> UEFI boot live-usb bricks SAMSUNG 530U3C,np700z5c laptop
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu-cdimage/+bug/1040557/+subscriptions
>

Žygimantas Beručka (zygis) wrote :

There's a mistake in the link above, it has caught an I as a part of the
link. The actual link is the following:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f8b8404337de4e2466e2e1139ea68b1f8295974f

2013/6/16 Žygimantas Beručka <email address hidden>

> The aforementioned modified UEFI anti-bricking code has been released in
> Linux 3.10-rc6, see:
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f8b8404337de4e2466e2e1139ea68b1f8295974fI hope it really works. :)
>
> Hopefully, this kernel will be included in Saucy images/daily images... If
> it's not, does anyone know how to make a Raring/Saucy install image with
> 3.10-rc6 kernel debs taken from the mainline kernel PPA?
>
>
> 2013/6/13 Val <email address hidden>
>
>> @Gilbert: see paragraph no 14 in post #114 for a fix to this problem.
>> It's a known bug in update-grub - Windows EFI boot entries are not
>> generated correctly.
>>
>> --
>> You received this bug notification because you are subscribed to the bug
>> report.
>> https://bugs.launchpad.net/bugs/1040557
>>
>> Title:
>> UEFI boot live-usb bricks SAMSUNG 530U3C,np700z5c laptop
>>
>> To manage notifications about this bug go to:
>> https://bugs.launchpad.net/ubuntu-cdimage/+bug/1040557/+subscriptions
>>
>
>

Žygimantas Beručka (zygis) wrote :

I know where to get the packages, but thank you anyway. :)

My question was rather how to build an image with those packages or where
it would be possible to get one. So that people would be able to install
Ubuntu from such images containing a (hopefully) safe kernel, i.e. to boot
it right away instead of just installing it before the second boot.

I discovered (http://voices.canonical.com/kernelteam/) that the Ubuntu
Kernel Team are planning, I assume, to use the 3.10 kernel in the nearest
future once some issues are resolved:

> Our Saucy unstable branch has been rebased to the latest v3.10-rc5
> upstream kernel. We are still holding off on a v3.10 based upload due
> to missing AUFS support as well as some DKMS package failures we would
> like to resolve. We have however gone ahead and rebased our Saucy master
> branch to the recent v3.9.5 upstream stable and plan to upload that
> today.

That is great news. However, this still means that any owner of affected
machines who is not running Saucy with 3.10-rc6 or newer might still be
affected by the issue. (Unless SAMSUNG have resolved it already, which may
or may not be the case, but I have no hope that we will ever get to know
this.) Hence I think it may be worth the effort to either consider
backporting the patch or create alternative cd/usb images with those 3.10
kernels of all currently supported Ubuntu releases.

What do you think? Would it be possible to implement any of above?

2013/6/16 LocutusOfBorg <email address hidden>

> http://kernel.ubuntu.com/~kernel-ppa/mainline/ :-)
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1040557
>
> Title:
> UEFI boot live-usb bricks SAMSUNG 530U3C,np700z5c laptop
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu-cdimage/+bug/1040557/+subscriptions
>

Jethro (jethro-belman) wrote :

So tomorrow I will receive delivery of a new: Samsung 530U3C-A06PT. I will post more detailed specs tomorrow.

I plan on performing the following step's based on reading the above (specifically as per #202), please provide some thoughts on this:

- Update BIOS using Samsung Windows updater (Win 8)
- Decrease Win 8 partion size
- Reboot and confirm Win 8 Ok
- Reboot and disable UEFI/secure boot
- Change USB to first boot priority
- Reboot and install Ubuntu 13.04-desktop-amd64 - downloaded today (Using a reliable USB stick made with steps from: http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-windows)
- See what happens!

I will grab further system/machine info upon delivery tomorrow before attempting the above. I have also sent a message to Samsung querying their best practice/advice but don't hold much hope on an answer before tomorrow.

Fingers crossed :)

Jethro (jethro-belman) wrote :

Correction to the above will be using: Ubuntu 13.04-desktop-i386 as model has: Intel i5-3317U

Žygimantas Beručka (zygis) wrote :

Just noting you don't have to use the i386 image on the 64bit i5 CPU,
unless you want to install the 32bit version of Ubuntu. Amd64 images is
what you should be using if you want to run a 64bit OS; it has nothing to
do with the AMD vs. Intel distinction.

By the way, I have also ordered a 530U3C-A05EE machine and going to take
the risk. Fingers crossed. Will report later.

2013 m. birželis 17 d., pirmadienis, Jethro <email address hidden> rašė:
> Correction to the above will be using: Ubuntu 13.04-desktop-i386 as
> model has: Intel i5-3317U
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1040557
>
> Title:
> UEFI boot live-usb bricks SAMSUNG 530U3C,np700z5c laptop
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu-cdimage/+bug/1040557/+subscriptions
>

Jethro (jethro-belman) wrote :

Samsung replied very fast to me, here is their response:

In response to your inquiry requesting information about the Samsung, we appreciate email addressed to us, which will be our best attention. We inform you Samsung doesn't give the support of any kind of version of Linux. You can try to install Ubuntu, but you should change some options in BIOS:

1st step: Resart the PC and press F2;
2nd step: Disable the Secure Boot;
3rd step: Change OS Mode Selection to CSM OS;
4nd step: Press F10 to save the changes;
5nd step: Press F9 to exit on the BIOS;

papukaija (papukaija) on 2013-06-18
tags: added: cherry-pick
Jethro (jethro-belman) wrote :

So further to my earlier posts #212 and #215 I followed these steps and Ubuntu 13.04-desktop-amd64 installed without glitch.

So:
Updated BIOS using built in Samsung updater
Disabled Secure Boot
Change OS selection to CSM OS
USB HDD to highest priority
Boot from USB and install Ubuntu

The only problem I have at the moment is the bootloader. Loading Windows 8 from GRUB gives error. When in UEFI mode Windows 8 boots fine. When in CSM OS Ubuntu boots fine from GRUB.

Going to try and follow steps in #202 to resolve this. But this is a minor issue. Basically not bricked!

stblack (stblack-linux) wrote :

I'd like to have your suggestions about a possible temporary solution, at least for me, to this bug.
I have a NP770Z5E and I wouldn't like to brick it.
What about to install linux and place the /boot partition on an external SD card (setting the boot order of SD at the top) and the rest of the system on the HD ?
Is this solution possible , or is it bricking the laptop ?

Thanks
stblack

tags: removed: kernel-key
Jordan (jordanu) wrote :

On Tue, Jun 25, 2013 at 5:58 AM, stblack <email address hidden> wrote:
> I'd like to have your suggestions about a possible temporary solution, at least for me, to this bug.
> I have a NP770Z5E and I wouldn't like to brick it.
> What about to install linux and place the /boot partition on an external SD card (setting the boot order of SD at the top) and the rest of the system on the HD ?
> Is this solution possible , or is it bricking the laptop ?

The issue is with EFI variables, which are stored in NVRAM within your
motherboard, so where /boot/ is stored is irrelevant.

stblack (stblack-linux) wrote :

Thanks Jordan,
so I check better the Jethro solution.

Jethro,
are steps in #202 solved the Windows 8 boot issue from grub ?

Thanks
Stefano

Žygimantas Beručka (zygis) wrote :

I have been running Ubuntu 13.04 on SAMSUNG NP530U3C-A05EE for a good week
and a half. So far so good. Please note, that I am running a mainline 3.10
kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline/ which among
other things contains Matthew Garrett's UEFI anti-bricking patches.

First of all, I have installed SAMSUNG BIOS upgrades from within Windows 8,
then reduced Windows partition to leave around 40–50 Gb of free space, the
remaining free space on a HDD was allocated for Ubuntu's "/home" directory.
Next I disabled Intel rapid start technology, in Windows, (for I might need
to copy files from Ubuntu to that Windows partition in the future, and
AFAIK having that enabled would lead to filesystem errors) and disabled
secure boot in BIOS. Having made those preparations, I went to install
Ubuntu 13.04 amd64 from a USB flash drive. (I have a 500 Gb hard drive and
a SanDisk SSD i100 24GB. As I do not boot into Windows very often, I wiped
everything wpresent on the SSD and allocated it for Ubuntu's "/" partition
(great boot/app launch speeds!).)

On the first boot I have downloaded a mainline 3.10 (then still RC) kernel,
installed it and rebooted. All is well. Later I realized Windows would not
boot out of the box, complaining something about an invalid path or
something, I do not recall the exect message. However, installing and using
Repair-Boot did the trick; now I am able to boot into both Ubuntu and
Windows 8 just fine.

What works? Pretty much everything. What does not work? Rfkill switch and
fan speed switch (Fn-F11 and Fn-F12 relatively), despite me having
installed the "samsung-tools" package (that's just a frontend) from Voria's
"Samsung on Linux" PPA. I believe both need the functionality the
"samsung-laptop" module provides. However, it is disabled and even though I
took the risk of loading it on my machine (having in mind safety Mr.
Garrett's patches are supposed to provide) I was unable to do that because
of errors.

I wonder will this module be enabled some time in the future. We will see.

2013/6/28 stblack <email address hidden>

> Thanks Jordan,
> so I check better the Jethro solution.
>
> Jethro,
> are steps in #202 solved the Windows 8 boot issue from grub ?
>
> Thanks
> Stefano
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1040557
>
> Title:
> UEFI boot live-usb bricks SAMSUNG 530U3C,np700z5c laptop
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu-cdimage/+bug/1040557/+subscriptions
>

muhammd (matrix-popmex) on 2013-07-08
Changed in ubuntu-release-notes:
status: Invalid → Fix Released
nainno (marc-5) wrote :

For helping, installing Ubuntu on a Samsung S5 :

On a 530U3C-A06FR with a 13.04 (x86) loaded on a usb Key with lili usb creator (windows 7).

- I updated the bios
- I disabled secure boot / UEFI
- I installed Ubuntu
- It worked fine.

I have not the balls to try to install it with UEFI enabled.

Fabio (mr-fabio90) wrote :

Hi everybody!!

I bricked my laptop 1 month ago(series 5 AMD A6). Now i've my new model NP535u3c a03(series 5 AMD A4 4355M). Can someone guide me in installing Ubuntu 12.04.2 on my computer? I tried to install both 12.04.2 and 13.04 but on install Win8 is not recognized. Is it SAFE to totally remove Win8 partition and format the disk to use it only for ubuntu?? PLEASE HELP!! Oh i upgraed the BIOS from version P04RAS to version P07RAS.

Thanks everybody!!

Val (vk1266) wrote :

@Fabio: if you completely remove Win8, you will likely lose the ability to upgrade your machine's firmware. The firmware can be upgraded only with Samsung Updater - a Windows application.

If Win8 does not start from your newly installed Grub, you are probably hitting the known bug:
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1024383
The solution suggested in post 18 on that bug's page worked for me. However, there was another problem with incorrect timeout setting; see paragraph 14 in https://bugs.launchpad.net/ubuntu-cdimage/+bug/1040557/comments/114/.

Apparently, there are other ways to get Win8 Grub entry working. See post #189 above.

Fabio (mr-fabio90) wrote :

Mine's not a problem concering GRUB. My problem is that during installation Win8 is not recognized so that i could choose "Install Ubuntu alongside windows 8". So is there a full guide on installing ubuntu safley on these machines? or can someone wrote one? PLEASE HELP! Thanks!

Fabio (mr-fabio90) wrote :

Oh ok..i'll Try your guide on the second link!! Thanks..i'll wrote in case of success ;)

Fabio (mr-fabio90) wrote :

So here's my STORY(Long Story) with my Samsung computers.
I think what i'm going to write could be a:

GUIDE IN INSTALLING UBUNTU 12.04.2 ON SAMSUNG 535U3C-A02 AND SAMSUNG 535U3C-A03(A02=AMD A6 - A03=AMD A4)

1) Update BIOS using windows 8(or Win7) preinstalled. My version was P04RAS updated to P07RAS!
2) Create a boot disk using unetbootin on windows 8
3)Go to BIOS>FastBoot>Disabled
4) Go to BIOS>SecureBoot>Disabled>CSM OS(IMPORTANT DO NOT SELECT "CSM OS AND UEFI OS")
5) Select your USB-DRIVE as primary device for boot.
6) Boot into Live.

--BREAK--
At this point the computer should work but there are several problems:
1)Ati drivers(KEEP THE COMPUTER SCREEN ON AND NEVER GO ON SUSPEND..MAYBE CLOSING THE SCREEN OR YOU'LL HAVE TO REBOOT INTO LIVE!!)
2)On AC-plugged in the computer is very slow so please charge your battery before installing. The solution to this problem is installing Jupiter during your live session..so if you install jupiter you can use your computer with AC-in.

--Continue--

7)Install UBUNTU 12.04.2 choosing the option to install Updates and third part software.
8)At this point (for me) WIN 8 is not recognized so chose "Other" in installation option.
9)Editing Partitions:

You just DO NOT TOUCH BOOT PARTIOTION!! Resize Win 8 one(NTFS partition) and create, using the new free space, an EXT4 partition and a SWAP partition. CHOOSE THE HDD(SDA) AS DISK TO INSTALL BOOTLOADER, NO OTHER PARTITION!

10) Let Ubuntu install!
11) On the first reboot install all of the updates needed.
12) After installing updates go to: http://support.amd.com/it/gpudownload/linux/Pages/radeon_linux.aspx and download BETA DRIVERS 13.8!!
13) Install drivers using terminal(go to directory and type "sudo 'name-of-the-driver'")
14) On reboot YOU HAVE YOUR CARD FULLY WORKING AND WAKEUP AFTER SUSPEND WORKS PERFECTLY!!
NOTE:
DO NOT REMOVE THE DRIVER SETUP AFTER INSTALL!! EVERY TIME YOU'LL UPDATE THE KERNEL YOU'LL HAVE TO REINSTALL DRIVERS MANUALLY FROM CONSOLE AND REBOOT. THEN EVERYTHING IS PERFECT AGAIN!

15) INSTALL JUPITER!!! Is very important so that the fan works correctly AND TO SOLVE THE PROBLEM OF SLOW PC ON AC IN!
16) Use the Plymouth fix proposed here: http://www.mobilegeek.it/2010/05/ubuntu-10-04-fix-veloce-per-plymouth/ to make plymouth show correctly on boot!

17) More or less you've DONE!! Enjoy
18) Battery Life is good..3H on 80% charge..
19) Backlight start working when you install ATI drivers.
20) Camera works with skype!

Everything is OK. I use this trick to disable bluetooth on boot: http://www.lffl.org/2011/12/ubuntu-disattivare-il-bluetooth-o-wifi.html

I hope this guide could Help so much people using the same machine. SORRY FOR MY ENGLISH! GOOD LUCK!

Jethro (jethro-belman) wrote :

Hi guys,

Apologies for my lack of response. I had been running fine Ubuntu by manually enabling CSM as boot option in BIOS and booting but GRUB would give an error trying to load Windows 8, I had to manually change back to UEFI boot option to load Win 8. I hadn't had time to find a fix to this.

FYI when I installed Ubuntu I used the option install alongside Win 8.

I have subsequently used the excellently tool here to fix this: http://sourceforge.net/p/boot-repair/home/Home/ I used this by installing via Ubuntu and just running standard options, upon reboot im running fine.

And GRUB now boots fine into Ubuntu or Win 8. When I get time i'm going to actually dig a bit deeper and write a guide and figure out the actual issue but as a Linux noob I've not had the time to go too deep into the root cause.

In essence using my above steps and then using the boot repair tool I'm able to dual boot fine. Will update in the future again.

keghn (keghn) wrote :

 I had to use boot repair on insulation of 11.04, 11.10,and 12.04 to make Ubuntu visible on
My grub table. 11.04 and 11.10 I had on my Sony viao. Then I moved up to a Samsung NP700Z5C
laptop.
 Put 12.04 on that. When 12.10 came out I bricked my rig trying it out, on A live usb thumb drive.
 Ubuntu is getting harder and with every new distro to install on my computer.
 I wish Ubuntu would slow down for just for one year to chase out most of there bugs.

-----Original Message-----
From: Jethro <email address hidden>
To: keghn <email address hidden>
Sent: Sun, Aug 4, 2013 1:05 pm
Subject: [Bug 1040557] Re: UEFI boot live-usb bricks SAMSUNG 530U3C, np700z5c laptop

Hi guys,

Apologies for my lack of response. I had been running fine Ubuntu by
manually enabling CSM as boot option in BIOS and booting but GRUB would
give an error trying to load Windows 8, I had to manually change back to
UEFI boot option to load Win 8. I hadn't had time to find a fix to this.

FYI when I installed Ubuntu I used the option install alongside Win 8.

I have subsequently used the excellently tool here to fix this:
http://sourceforge.net/p/boot-repair/home/Home/ I used this by
installing via Ubuntu and just running standard options, upon reboot im
running fine.

And GRUB now boots fine into Ubuntu or Win 8. When I get time i'm going
to actually dig a bit deeper and write a guide and figure out the actual
issue but as a Linux noob I've not had the time to go too deep into the
root cause.

In essence using my above steps and then using the boot repair tool I'm
able to dual boot fine. Will update in the future again.

--
You received this bug notification because you are subscribed to a
duplicate bug report (1124616).
https://bugs.launchpad.net/bugs/1040557

Title:
  UEFI boot live-usb bricks SAMSUNG 530U3C,np700z5c laptop

Status in Ubuntu CD image build software:
  Invalid
Status in Release Notes for Ubuntu:
  Fix Released
Status in Release Notes for Ubuntu quantal series:
  Fix Released
Status in “linux” package in Ubuntu:
  Fix Committed
Status in “linux” source package in Oneiric:
  Fix Released
Status in “linux” source package in Precise:
  Fix Released
Status in “linux” source package in Quantal:
  Fix Released

Bug description:
  I cannot provide detailed log massages because laptop is bricked right
  now.

  If you have courage to try it select UEFI boot from bios and than try
  to boot laptop using liveusb (made form Precise Pangolin 12.04.1
  amd64).

  Laptop hangs up in black screen. If you force power-off, after it,
  laptop wont start. I mean it not event start bios, just black screen
  no sounds nothing.

  I filing this report, because i already bricked second laptop. At
  first i thought it was unrelated issue and laptop was fixed by
  warranty service (replaced motherboard), but after second time i quite
  sure.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-cdimage/+bug/1040557/+subscriptions

nob0dy (kib0rg1337) wrote :

Can anyone confirm that this bug did not affect the Samsung Series 3 (370R5E)?

It has been 2 BIOS updates since the release of the laptop (of course, changelog's has not been provided), and I wonder whether this is fixed now, or just do not have this bug.

I can not find any information on the internet about 370r5e (users only talk about the 300/350 models).

Does anyone have this laptop, and have you had experience of installing on it two OS's (Win8 + Ubuntu) with EFI?

calant (caalant) wrote :

So I figure the safest thing to do is to wait for Ubuntu 13.10 release? Since this uses linux kernel 3.11 which contains the anti brick patch?

So is this problem only with Samsung laptops/
Is this only for 64 bit or it is also for 32 bit.
Kindly inform on this.

Thank you in advance.

calant (caalant) wrote :

It is only on Samsung laptops. I don't know if the version affects the issue.

Žygimantas Beručka (zygis) wrote :

Calant, let me put it this way. There were no confirmations either from
SAMSUNG or from Ubuntu/kernel devs that the fixes released necessarily
solve those issues (no info from SAMSUNG at all). However, as you can see,
there are almost no new reports that people are still facing the issue.

If you are interested in my way of dealing with the situation, as I wrote
somewhere above, I installed vanilla 13.04 (it already has the
hypothetically bug triggering 'samsung-laptop' module disabled) and
afterwards (on the first boot) made sure to have a 3.10 kernel installed
from http://kernel.ubuntu.com/~kernel-ppa/mainline/. (Just in case; as 3.10
– still a -rc at the time – was the first kernel containing some
significant Matthew Garrett's anti-bricking patches that should in theory
remove even a slightest possibility to be affected by the issue.) Have not
looked back since then, everything has been working flawlessly (I have a
530U3C-EE05 machine).

So you can wait or just do the same as I did (just take the 3.11 mainline
kernel instead, as it is already out). And I am not the only one who did
this, as you can see in this thread.

2013/9/11 calant <email address hidden>

> So I figure the safest thing to do is to wait for Ubuntu 13.10 release?
> Since this uses linux kernel 3.11 which contains the anti brick patch?
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1040557
>
> Title:
> UEFI boot live-usb bricks SAMSUNG 530U3C,np700z5c laptop
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu-cdimage/+bug/1040557/+subscriptions
>

Žygimantas Beručka (zygis) wrote :

And do not forget to get the latest Samsung BIOS updates from within
Windows first! This is of utmost importance.

2013/9/11 calant <email address hidden>

> So I figure the safest thing to do is to wait for Ubuntu 13.10 release?
> Since this uses linux kernel 3.11 which contains the anti brick patch?
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1040557
>
> Title:
> UEFI boot live-usb bricks SAMSUNG 530U3C,np700z5c laptop
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu-cdimage/+bug/1040557/+subscriptions
>

Hi everybody,

I have just purchased a 530U3C. I have read through all the comments. I would like if someone could clarify some points.

About the specific issue:

Is it reasonable safe to try/install Ubuntu disabling UEFI?

Does current release 13.04 come with a kernel containing the patch mentioned above?

The BIOS menu does not have "secure boot", or "cms", just enable or disable UEFI. disabling that setting would be enough?

What are the disadvantages of disabling UEFI?

What would be the "best way" to create the booteable pen drive?

I upgraded the BIOS using samsung's updater (version info below) . Do we have any info yet ragarding the fix?

A little off-topic / if someone insalled ubuntu in this model:

Does dual booting work ok? i.e. may i risk the Windows 7 installation by installing GRUB, etc?

Is it safe to delete the partitions on the SSD drive and install linux there or would that bring problems to windows?

Many thanks in advance and sorry if this is a misuse of the bug-report. If I devcide to try it i will report the results.

---------
BIOS version
Nombre de clave: HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\BIOS
Nombre de clase: <Ninguna clase>
Hora de última escritura: 14/10/2013 - 09:13 a.m.
Valor 0
  Nombre: BiosMajorRelease
  Tipo: REG_DWORD
  Datos: 0

Valor 1
  Nombre: BiosMinorRelease
  Tipo: REG_DWORD
  Datos: 0x1

Valor 2
  Nombre: ECFirmwareMajorRelease
  Tipo: REG_DWORD
  Datos: 0xff

Valor 3
  Nombre: ECFirmwareMinorRelease
  Tipo: REG_DWORD
  Datos: 0xff

Valor 4
  Nombre: BaseBoardManufacturer
  Tipo: REG_SZ
  Datos: SAMSUNG ELECTRONICS CO., LTD.

Valor 5
  Nombre: BaseBoardProduct
  Tipo: REG_SZ
  Datos: SAMSUNG_NP1234567890

Valor 6
  Nombre: BaseBoardVersion
  Tipo: REG_SZ
  Datos: FAB1

Valor 7
  Nombre: BIOSReleaseDate
  Tipo: REG_SZ
  Datos: 04/15/2013

Valor 8
  Nombre: BIOSVendor
  Tipo: REG_SZ
  Datos: Phoenix Technologies Ltd.

Valor 9
  Nombre: BIOSVersion
  Tipo: REG_SZ
  Datos: P14AAJ

Valor 10
  Nombre: SystemFamily
  Tipo: REG_SZ
  Datos: ChiefRiver System

Valor 11
  Nombre: SystemManufacturer
  Tipo: REG_SZ
  Datos: SAMSUNG ELECTRONICS CO., LTD.

Valor 12
  Nombre: SystemProductName
  Tipo: REG_SZ
  Datos: 530U3C/530U4C

Valor 13
  Nombre: SystemSKU
  Tipo: REG_SZ
  Datos: System SKUNumber

Valor 14
  Nombre: SystemVersion
  Tipo: REG_SZ
  Datos: 0.1

keghn (keghn) wrote :

 Hello,
What model is you laptop?
 Did you up date the bios in Windows?
 Is the computer still under warranty?
 I have 12.04 working on my laptop right now.
 I believe 12.04.1 to 12.10* are bricks for My Samsung
notebook.
 Wish you better luck,
     keghn

.

BTW the "latest" is 13.10 and NOT 13.04

calant (caalant) wrote :

My System came installed with Windows 8, which I updated to 8.1. and I am succesfully dual booting it and Ubuntu 13.10.
Name NP700Z5C-S02ZA
Vendor SAMSUNG ELECTRONICS CO., LTD. (www.samsung.com)
BIOS
Date 11/04/2013
Vendor Phoenix Technologies Ltd. (www.phoenix.com)
Version P07ABJ
Computer
Processor 8x Intel(R) Core(TM) i7-3615QM CPU @ 2.30GHz
Memory 7873MB (997MB used)
Operating System Ubuntu 13.10

I updated to the latest bios drivers, deactivated fast boot/quick boot(in windows and in bios), intel rapid responce etc.
Shrinked my main drive to allow space for Ubuntu. Booted the Ubuntu live usb with UEFI and SecureBoot stil enabled.
Installed Ubuntu using the existing efi partition and the HDD as to location for the bootloader.
It installed fine and Ubuntu worked just like that, however Windows 8.1 did not work until I disabled SecureBoot.(I'm not sure why.)
I did not even run repair-boot. :)

Fabio (mr-fabio90) wrote :

I confirm Calant procedure:
ON SAMSUNG 535U3C A03DE

1) Updated Bios to P07RAS
2) Disabled Fastboot on both Windows8 and bios
3) Run usb boot with SecureBoot Enabled and UEFI selected
4) Normally installed Ubuntu selecting Other during install and partitioning the hdd.
5) Selected the hdd for bootloader
6) On reboot Everything worked fine.
IMPORTANT!! Using emulated bios..Ubuntu was really slow on AC-IN(100% CPU usage while charging)...but with UEFI Installation the problem seems to be solved. :D Oh i use AMD Catalyst Version 13.11 beta V9.95..Site version...wokrs wel.. FINALLY UBUNTU SEEMS TO BE FINE ON THIS MACHINE!!!

Anders (eddiedog988) on 2014-03-13
Changed in ubuntu-cdimage:
status: Invalid → Confirmed
Martin Pitt (pitti) wrote :

Anders, please stop walking around Launchpad and changing the status of random bugs.

Changed in ubuntu-cdimage:
status: Confirmed → Fix Released
José Matos (miguelcm86) wrote :

The problem is solved in samsung serie 7 chronos (np700z5c) ?
In the version ubuntu 14.04?

Can I activate the secureboot and install new ubuntu?

Thanks,
Miguel

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