My disk overview is as follows:
sda: /dev/sda1 : GNU/Linux
/dev/sda2: SWAP
sdb: /dev/sdb1: Backup space
/dev/sdb2: Extended
/dev/sdb5: SWAP
/dev/sdb6: LFS 6.4 root partition (reiserfs)
My menu.lst is as follows:
...
# The first entry is for LFS.
title LFS 6.4
root (hd1,5)
kernel /boot/ckernel-2.6.27.4 root=/dev/sdb6
I have installed GRUB on both disks, sda and sdb.
from chroot environment in LFS 6.4:
root:/boot/grub# ls
menu.lst menu.lst~ reiserfs_stage1_5 stage1 stage1 stage2
I have reiserfs support compiled into my kernel:
CONFIG_REISERFS_FS=y
CONFIG_REISERFS_CHECK=y
CONFIG_REISERFS_PROC_INFO=y
CONFIG_REISERFS_FS_XATTR=y
CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_REISERFS_FS_SECURITY=y
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.
--
Charlie Turner
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