Public bug reported:
Since 3.2.0-21 the kernel does not locate my hard drive. Consequently,
the kernel cannot locate the system partition, which results in a kernel
panic -- unable to mount root filesystem.
The suggested valid boot devices following this error include only my
CD-ROM drive (sr0).
Kernel 3.2.0-20 boots fine.
Kernel 3.2.0-22 suffers the same problem as 3.2.0-21.
Please let me know if I can supply any further/more specific
information.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-generic 3.2.0.22.24
ProcVersionSignature: Ubuntu 3.2.0-20.33-generic 3.2.12
Uname: Linux 3.2.0-20-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0-0ubuntu4
Architecture: amd64
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not
found.
Date: Thu Apr 5 20:44:16 2012
HibernationDevice: RESUME=UUID=35553fcd-9ae3-4e61-8142-e496f4d885d4
IwConfig:
lo no wireless extensions.
eth0 no wireless extensions.
MachineType: Dell Inc. Precision WorkStation T7500
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-20-generic
root=UUID=862bcf01-fc44-4c29-8d08-f8be78763567 ro quiet splash
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/20/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A10
dmi.board.name: 06FW8P
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 7
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA10:bd04/20/2011:svnDellInc.:pnPrecisionWorkStationT7500:pvr:rvnDellInc.:rn06FW8P:rvrA01:cvnDellInc.:ct7:cvr:
dmi.product.name: Precision WorkStation T7500
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug kernel-request-3.2.0-22.35 precise
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https://bugs.launchpad.net/bugs/974765
Title:
Drive not found since 3.2.0-21... kernel panic, unable to mount root
fs
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