Epistaxis
April 27th, 2008, 06:15 PM
N00b here - some Ubuntu experience before my installation stopped working, but not too knowledgeable about how my hardware components interact with each other.
I have two hard drives configured as a RAID 0 by a controller on my motherboard. For a long time, through multiple Ubuntu versions, everything worked fine. I had four primary partitions: Windows XP (NTFS), data (FAT32), Ubuntu 7.10 root (XFS), swap. One day I turned on my computer and my motherboard BIOS had somehow lost all its configuration, so it couldn't detect the hard drive(s) - I think I flashed the firmware and reconfigured it, but that was a long time ago. Anyway, now I get the GRUB menu when I boot, and Windows XP works just fine, but whenever I try to boot Ubuntu, it takes several minutes before dropping into the initramfs shell. Above the shell prompt, I see a series of messages like this:
[ 100.755621] Buffer I/O error on device sda2, logical block 175606505 where the last number increments by 1 each time.
With "quiet" disabled, I can see a point where the flow of text stops for a long time, then it suddenly gives a long series of messages like this:
[ 114.108009] sda: rw=0, want=560925540, limit=29304678
[ 114.108537] attempt to access beyond end of device
where the "want" number keeps incrementing by 1. Then I get some messages about SCSI removable disks successfully attaching. There's another several-minute pause, then this:
Done.
Check root= bootarg cat /proc/cmdline
or missing modules, devices: cat /proc/modules ls /dev
ALERT! /dev/mapper/isw_bjajhfagjd_RAID_Volume13 does not exist. Dropping to a sh
ell!
and it drops to the initramfs shell.
Recovery Mode didn't help, so I thought I'd reinstall. Unfortunately, I get exactly the same problem booting from the 7.10 and 8.04 Live CDs, so I can't. I'm willing to rebuild my root filesystem, but I'm reluctant to rebuild all the others if it can be avoided. Either way, I need to get the Live CD working first.
Help!
I have two hard drives configured as a RAID 0 by a controller on my motherboard. For a long time, through multiple Ubuntu versions, everything worked fine. I had four primary partitions: Windows XP (NTFS), data (FAT32), Ubuntu 7.10 root (XFS), swap. One day I turned on my computer and my motherboard BIOS had somehow lost all its configuration, so it couldn't detect the hard drive(s) - I think I flashed the firmware and reconfigured it, but that was a long time ago. Anyway, now I get the GRUB menu when I boot, and Windows XP works just fine, but whenever I try to boot Ubuntu, it takes several minutes before dropping into the initramfs shell. Above the shell prompt, I see a series of messages like this:
[ 100.755621] Buffer I/O error on device sda2, logical block 175606505 where the last number increments by 1 each time.
With "quiet" disabled, I can see a point where the flow of text stops for a long time, then it suddenly gives a long series of messages like this:
[ 114.108009] sda: rw=0, want=560925540, limit=29304678
[ 114.108537] attempt to access beyond end of device
where the "want" number keeps incrementing by 1. Then I get some messages about SCSI removable disks successfully attaching. There's another several-minute pause, then this:
Done.
Check root= bootarg cat /proc/cmdline
or missing modules, devices: cat /proc/modules ls /dev
ALERT! /dev/mapper/isw_bjajhfagjd_RAID_Volume13 does not exist. Dropping to a sh
ell!
and it drops to the initramfs shell.
Recovery Mode didn't help, so I thought I'd reinstall. Unfortunately, I get exactly the same problem booting from the 7.10 and 8.04 Live CDs, so I can't. I'm willing to rebuild my root filesystem, but I'm reluctant to rebuild all the others if it can be avoided. Either way, I need to get the Live CD working first.
Help!