Kernel panic -- Not syncing | VFS: Unable to mount root fs
lookatmymanbreasts at gmail.com
Sun Apr 5 15:17:16 PDT 2009
My disk overview is as follows:
sda: /dev/sda1 : GNU/Linux
sdb: /dev/sdb1: Backup space
/dev/sdb6: LFS 6.4 root partition (reiserfs)
My menu.lst is as follows:
# The first entry is for LFS.
title LFS 6.4
kernel /boot/ckernel-22.214.171.124 root=/dev/sdb6
I have installed GRUB on both disks, sda and sdb.
from chroot environment in LFS 6.4:
menu.lst menu.lst~ reiserfs_stage1_5 stage1 stage1 stage2
I have reiserfs support compiled into my kernel:
I saw sata messages scrolling by in the kernel messages before the
panic, I couldn't scroll up in the console to
make a note of them though. I assume that I have the appropriate
support in my kernel for sata. I also have support
for the Intel ICH controller.
When i boot with these settings GRUB initially tells me that there is
no such partition hd1,5. If i change this to hd0,5,
it boots. I assume my BIOS changes the drive ordering when I select
sdb from the boot select menu.
The kernel soon tells me this:
VFS: cannot open root device "sdb6" or unknown-block (8,6)
Please append correct root= boot option: here are the available partitions
[3.515198] 0800 488386584 sda driver: sd
[3.515277] 0810 488386584 sdb driver: sd
[3.515356] 0b00 1048575 sr0 driver: sr
[3.515434] Kernel panic -- not syncing: VFS: unable to mount root fs
on unknown-block (8,6)
I've tried changing the root= boot option to /dev/sda6 thinking that
with the drives swapping their names it would work
but it doesn't.
Any pointers appreciated. I don't know what to investigate now.
Thanks for your time.
More information about the lfs-support