Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

[David]

Clean install of Ubuntu 10.04 from CD created on May 10, 2010.

Everything worked fine after initial install. Installed updates without any problems. Approximately 45 minutes after install the screen when black then came back up immediately. Now get :

[ #.######] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

where #.###### is a different number each time I attempt to boot.

[Jeremy Foshee (jeremyfoshee)]

Hi QED314,

Please be sure to confirm this issue exists with the latest development release of Ubuntu. ISO CD images are available from http://cdimage.ubuntu.com/releases/ . If the issue remains, please run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux 578849

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

    [This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[David (david314-deactivatedaccount-deactivatedaccount)]

Did a fresh install about a week ago and no longer have any problems.

[Binks (tw01mn-kurzbericht)]

Downloaded the latest amd64 iso image and did a new install about 3 weeks ago. Update regularly, typically every day. About 1 week ago, this error appeared at boot. Rebooted, error went away. Three days ago, it came back to stay. There is a small difference at the end: instead of "unknown-block (0,0)" I get "unknown wn-block (0,0)".
Used a live cd to boot and reinstall grub. Worked fine for a day. Today the error is back. Machine boots into windoze 7 without a hiccup.

[Binks (tw01mn-kurzbericht)]

UPDATE: I suspected the grub reinstall getting things to work was a long shot in the first place and having it actually get me going was a fluke, especially when it didn't work a second time. Further investigation revealed the problem was having to manually set the BIOS to DDR3 1600 from the auto detected 1333 (which apparently is pretty standard at the present state of affairs). I corrected that setting and booted up without further ado. Will post if further problems arise.

[Jeremy Foshee (jeremyfoshee)]

This bug report was marked as Incomplete and has not had any updated comments for quite some time. As a result this bug is being closed. Please reopen if this is still an issue in the current Ubuntu release http://www.ubuntu.com/getubuntu/download . Also, please be sure to provide any requested information that may have been missing. To reopen the bug, click on the current status under the Status column and change the status back to "New". Thanks.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[Lord Panta (panta2mi)]

In a last update i have the same error... i dont acces to mi pc...
message: [1, 144291] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

with a live CD show the same error or freeze screen

[Lord Panta (panta2mi)]

apparently an error in ram memory was causing the problem.

Yesterday i change an module of ram memory. But today at startup, show me error (Kernel panic). after try to start unsucessfull with a live CD (obviously it cant start because are unable to load in ram memory). I remove the new memory and bingo!!!... ubuntu start sucesfully without error messages.

[Lord Panta (panta2mi)]

AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: pierre 1728 F.... pulseaudio
CRDA: Error: [Errno 2] No existe el archivo o directorio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xd8240000 irq 22'
   Mixer name : 'SigmaTel STAC9250'
   Components : 'HDA:83847634,107b0366,00100101 HDA:10573057,00010001,00100100'
   Controls : 9
   Simple ctrls : 7
DistroRelease: Ubuntu 10.04
HibernationDevice: RESUME=UUID=7c070f9c-a34c-4b20-9266-1d3d78e2e2ce
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MachineType: Gateway MX6938M
Package: linux (not installed)
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-24-generic root=UUID=ae1c63b2-eb7e-4b1a-ac39-72cae4796fdd ro quiet splash
ProcEnviron:
 LANG=es_MX.utf8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-24.41-generic 2.6.32.15+drm33.5
Regression: No
RelatedPackageVersions: linux-firmware 1.34.1
Reproducible: Yes
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
Tags: lucid kconfig needs-upstream-testing
Uname: Linux 2.6.32-24-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare video
dmi.bios.date: 08/21/2006
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: 77.07
dmi.board.vendor: Gateway
dmi.board.version: 77.07
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 8
dmi.chassis.vendor: Gateway
dmi.chassis.version: Rev.1
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr77.07:bd08/21/2006:svnGateway:pnMX6938M:pvr3402688R:rvnGateway:rn:rvr77.07:cvnGateway:ct8:cvrRev.1:
dmi.product.name: MX6938M
dmi.product.version: 3402688R
dmi.sys.vendor: Gateway

[Lord Panta (panta2mi)]

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[Jack Vultaggio (jvultaggio)]

This happened after I run Update Manager on my 10.04 system. How do I resolve it? I haven't added anything to my system and don't understand where the problem is coming from. Please advise?

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 578849

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Launchpad Janitor (janitor)]

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