Help with Initrd (Kernel 2.6.13 and lvm2)

Zmyrgel · 07-23-2006, 08:22 AM

Hi,

I just finished installing Slack 10.2 with LVM2 drives (var,opt,home,tmp,usr).

Now when I try to boot I get kernel panic as it didn't find my root filesystem.

I have read that I would need initrd image to load support for my reiserfs and dm-mod in order to boot correctly but I don't know how to do those

So, could you help me and am I in the right tracks with this case?

simcox1 · 07-23-2006, 01:46 PM

man mkinitrd might help. It gives reiserfs as an example. I don't know about the other part though.

Zmyrgel · 07-23-2006, 02:24 PM

Jeh,

I found a way to do this though I haven't been able to boot yet and confirm if it will work. Downloading slackware-current packages. After that I test the system and then start the upgrade process if this works succesfully.

Zmyrgel · 07-23-2006, 02:42 PM

Alas, It didn't work. I get following:

Code:

RAMDISK: Compressed image found at block 0
VFS: Mounted root (ext2 filesystem)
/boot/initrd.gz: Loading kernel modules from initrd image:
Using /lib/modules/2.6.13/reiserfs.ko
Using /lib/modules/2.6.13/dm-mod.ko
device-mapper: 4.4.0-ioctl (2005-01-12) initialized; dm-devel@redhat.com
VFS: Cannot open root device "sda3" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

Any ideas? I tried "mkinitrd -c -k 2.6.13 -m reiserfs:dm-mod"

Avoidiam · 07-25-2006, 01:54 PM

I'm having the same sort of problem.

VFS: cannot open root device "801" or 08:01
Please append a correct "root=" boot option
Kernel panic: VFS: unable to mount root fs on 08:01

I believe it's a problem with the USB HDD that linux is installed on not being found or mounted or something to that effect.

Please help.

Zmyrgel · 07-26-2006, 04:55 AM

I got mine to work with the above by enabling reiserfs support in kernel.
In your case you should probably enable the USB support in kernel or as module and then make the initial ramdisk for it to solve the issue.