Corrupted filenames in ISO Ubuntu 12.04.2 Server amd64

[Ivan Pupkin]

ISO file "ubuntu-12.04.2-server-amd64.iso" contains some files (about 19) with corrupt filename and extension (or only extension). Mainly they are in this path "/pool/main/l/linux-lts-quantal" but probably I saw one in other place.

For example, a few of corrupted files:
1) fs-core-modules-3.5.0-23-generic-di_3.5.0-23.35~precise1_amd6.ude (there should be "4" in the end of filename)
2) multipath-modules-3.5.0-23-generic-di_3.5.0-23.35~precise1_am.ude (there should be "d64" in the end of filename)
3) floppy-modules-3.5.0-23-generic-di_3.5.0-23.35~precise1_amd64.ude (there wrong only extension)

So, extension should be "udeb" instead of "ude" and filename should end with "precise1_amd64" and not with something else.

I discovered this problem today when was trying to install Ubuntu Server from USB stick (prepared with Universal USB Installer).
Installer hangs with the error "Failed to copy file from CD-ROM".

I downloaded "ubuntu-12.04.2-server-amd64.iso" from ubuntu.com. And my MD5 is "af5f788aee1b32c4b2634734309cc9e9" and SHA-1 is "983cfa31d1a376e0c6d2e431af7e0e5757f8d28a".

After renaming corrupt files istallation was successfully completed.

P. S. I spend near 2 hours to report this bug, first time after sending bug was not created, then I fought with "clever" redirection from this link "https://bugs.launchpad.net/ubuntu/+filebug/". It was really hard to person who want to do something usefull...

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

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[Nicholas Skaggs (nskaggs)]

Ivan, thank you for your report. Can you confirm where you obtained the iso from? Was it this iso?
http://releases.ubuntu.com/12.04.2/ubuntu-12.04.2-server-amd64.iso

Looking at the iso in question, http://releases.ubuntu.com/12.04.2/ubuntu-12.04.2-server-amd64.list, those files are not corrupt. It sounds like an issue with your 'universal usb installer' tool. If you want to make a usb image of the iso, I'd recommend using dd:

dd if=/path/to/ubuntu-12.04.2-server-amd64.iso of=/path/to/usb

[Ivan Pupkin (xyily)]

I obtained iso from download section of ubuntu.com.
It probably automatically redirects me to Russian mirror.
Exact link I don't remember.

Nope, Universal usb installer (http://www.ubuntu.com/download/help/create-a-usb-stick-on-windows)
don't do any change in iso file. It's just extract files from iso to USB stick.

[Ivan Pupkin (xyily)]

Just download iso second time from this link:
http://mirror.yandex.ru/ubuntu-releases//precise/ubuntu-12.04.2-server-amd64.iso

Same problem. I was trying open iso file with 7zip and UltraISO (UltraISO while opening iso file said this: "Unsupported block size, HFS volume will be skipped") and there are some corrupted filenames.

[Omid Kosari (omidkosari)]

I have downloaded the iso from several locations and just opened the iso file with winrar . Same problem exists .

[Omid Kosari (omidkosari)]

also i checked the md5 of ubuntu-12.04.2-server-amd64.iso is exactly correct AF5F788AEE1B32C4B2634734309CC9E9 but it has problem .

[Brian Murray (brian-murray)]

I've tried recreating this with an the iso from releases.ubuntu.com and mirror.yandex.ru and been unsuccessful.

[ 2:34PM ] [ bdmurray@impulse:~ ]
 $ sudo mount -o loop /misc/isos/ubuntu-server/ubuntu-12.04.2-server-amd64.iso /mnt/disk
mount: warning: /mnt/disk seems to be mounted read-only.
[ 2:34PM ] [ bdmurray@impulse:~ ]
 $ ls /mnt/disk
boot cdromupgrade dists doc EFI install isolinux md5sum.txt pics pool preseed README.diskdefines ubuntu
[ 2:35PM ] [ bdmurray@impulse:~ ]
 $ find /mnt/disk -name fs-core-modules\*
/mnt/disk/pool/main/l/linux-lts-quantal/fs-core-modules-3.5.0-23-generic-di_3.5.0-23.35~precise1_amd64.udeb
[ 2:35PM ] [ bdmurray@impulse:~ ]
 $ find /mnt/disk -name multipath-modules\*
/mnt/disk/pool/main/l/linux-lts-quantal/multipath-modules-3.5.0-23-generic-di_3.5.0-23.35~precise1_amd64.udeb
[ 2:35PM ] [ bdmurray@impulse:~ ]
 $ find /mnt/disk -name floppy-modules\*
/mnt/disk/pool/main/l/linux-lts-quantal/floppy-modules-3.5.0-23-generic-di_3.5.0-23.35~precise1_amd64.udeb
[ 2:35PM ] [ bdmurray@impulse:~ ]
 $ sudo umount /mnt/disk
[ 2:35PM ] [ bdmurray@impulse:~ ]
 $ sudo mount -o loop /tmp/ubuntu-12.04.2-server-amd64.iso /mnt/disk
mount: warning: /mnt/disk seems to be mounted read-only.
[ 2:36PM ] [ bdmurray@impulse:~ ]
 $ find /mnt/disk -name floppy-modules\*
/mnt/disk/pool/main/l/linux-lts-quantal/floppy-modules-3.5.0-23-generic-di_3.5.0-23.35~precise1_amd64.udeb
[ 2:36PM ] [ bdmurray@impulse:~ ]
 $ find /mnt/disk -name multipath-modules\*
/mnt/disk/pool/main/l/linux-lts-quantal/multipath-modules-3.5.0-23-generic-di_3.5.0-23.35~precise1_amd64.udeb
[ 2:36PM ] [ bdmurray@impulse:~ ]
 $ find /mnt/disk -name fs-core-modules\*
/mnt/disk/pool/main/l/linux-lts-quantal/fs-core-modules-3.5.0-23-generic-di_3.5.0-23.35~precise1_amd64.udeb
[ 2:36PM ] [ bdmurray@impulse:~ ]

It likely has something to do with the tools you are using to inspect the iso.

[Ivan Pupkin (xyily)]

So many tools are wrong with one container?
And only exactly few files into it?
It is rather strange, is't it?

Probably, your linux tools could ignore some problems, that windows-tools couldn't?
Like some browser could render html-page correctly and some could not?

[Jevon Wright (jevon)]

Happened to me today. Wrote the 12.04.2 server 64bit ISO onto two separate USB disks using both Rufus and LiLi (which is recommended on the wiki). Even after remounting manually from ISO I couldn't get Ubuntu to install.

Downloading and writing 12.04.1 onto a third disk worked perfectly. Perhaps my first two disks were faulty.

[Joshua Andrews (josh.a)]

Hit me today, I had to use a 12.04.1 iso to get things working, with all the associated nomodeset bugs....

Hopefully this gets fixed soon ,because I tried all the genisoimage options I could think of to attempt to fix these filenaming issues, but unfortunately NONE of the windows tools I tried worked (And I tried a few, even windows 8's built in iso mounting ability)

Strangely when mounting the iso in linux, all the file names are intact.

Hopefully this gets fixed asap, because the amount of issues it's causing is unimaginable.

[Glenn J. Schworak (glenn-schworak)]

I also downloaded the 12.04.2 server ISO several times directly from Ubuntu and via torrent and all had the correct MD5 but all failed the disk check and won't install. I am going to try 12.04.1 to and hope I get the same success others are seeing.

[Nick Griffiths (nicholasgriffiths)]

A solution that worked for me was to use Win32 Disk Imager to write the ISO to the USB flash drive. Ubuntu installed with no problems.

When I opened the ISO image in 7-zip, or mounted it using Daemon Tools and viewed the contents in Windows Explorer, both showed the files in /pool/main/l/linux with truncated names.

[Launchpad Janitor (janitor)]

[Expired for debian-installer (Ubuntu) because there has been no activity for 60 days.]