Kernel panic after installing customized kernel for eee on ext4

msu · 2009-06-30 21:52:28

Hello folks.

I'm struggling on installation of Arch Linux on my Asus EEE 1000HE Netbook. I've been using Ubuntu for some time, and now I wanted try something new .

I'm using guide: http://wiki.archlinux.org/index.php/Ins … sus_EEE_PC

I've installed 2009.02 from USB, and now I got kernel 2.6.30 using ext4 filesystem.

Now I wanted to use customized kernel for eee, so I added line to pacman (toofishes package) and installed kernel. But now, when I use this new kernel, I got kernel panic:

VFS:Unable to mount root fs on unknown-block(0,0).

I'm looking on forums for similar problems, changing my config files over and over again, and i got the same error message.

fstab:

/dev/sda1 /boot ext2 defaults 0 1
/dev/sda2 swap swap defaults 0 0
/dev/sda3 / ext4 defaults 0 1
/dev/sda4 /home ext4 defaults 0 2

GRUB:

# (0) Arch Linux 
title  Arch Linux 
root   (hd0,0) 
kernel /vmlinuz26 root=/dev/sda3 rootfstype=ext4 ro 
initrd /kernel26.img 

# (1) Arch Linux 
title  Arch Linux Fallback 
root   (hd0,0) 
kernel /vmlinuz26 root=/dev/sda3 rootfstype=ext4 ro 
initrd /kernel26-fallback.img

# Arch EEE
title    Arch Linux EEE Kernel
root    (hd0,0)
kernel /vmlinuzeee root=/dev/sda3 rootfstype=ext4 ro

Adding initrd still causes problem related to ext4 (can't mount partition) and I'm stuck in ramfs$.

Maybe this kernel don't support ext4 file system, but AFAIK it should. Original kernel (number 0 in GRUB) works ok, no problem with ext4 system.

I would appreciate any help, thanks.

Last edited by msu (2009-06-30 21:53:51)

darthaxul · 2009-07-01 00:37:20

maybe try uuid?

title alinuzzz
root (hd0,11)
kernel /boot/mykern root=/dev/disk/by-uuid/cb04dad0-8b20-4fb4-9779-989ce130b1b6 vga=0x376 quiet ro
initrd /boot/myimage

scio · 2009-07-01 02:02:43

Just as a side note, the customized kernel doesn't benefit the 1000HE much since it is a regular HD, Atom processor, and uses ath9k for wireless.
I just use the stock arch kernel and:
http://aur.archlinux.org/packages.php?ID=23318
http://aur.archlinux.org/packages.php?ID=27705
For the extra features.

msu · 2009-07-01 07:07:03

darthaxul wrote:

maybe try uuid?

Same answer here, well except VFS error refers to UUID than to /dev/sda3.

VFS: Cannot open root device "UUID=0a8a48d0-1905-4083-b781-86eb28c69d63" or unknown-block(0,0)
Please append a correct "root=" boot option; here are the available partitions:
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[drm:intelfb_panic] *ERROR* panic occurred, switching back to text console

scio wrote:

the customized kernel doesn't benefit the 1000HE much since it is a regular HD

Thanks, I didin't know that. Maybe it's not worth my time after all.

barzam · 2009-07-01 15:56:25

I agree, I also use the stock kernel on my Eeepc 900 (had the same problems with the eee-kernel after my last reinstall with ext4). What I did like with the eee-kernel was that the bootup speed was way faster, but with finit-arc I got a very fast boot with the stock kernel as well.

http://aur.archlinux.org/packages.php?ID=25159

nbvcxz · 2009-07-01 16:08:26

There must be something strange with 2.6.30 kernel. I got the same with 2.6.30-zen1 and in fact I thought that it is because zen patchset. I use config form previous 2.6.29-zen2 with ext4 compiled statically. The symptoms are the same:

VFS: Cannot open root device "/dev/sda3" or unknown-block(8,3)
Please append a correct "root=" boot option; here are the available partitions:
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,3)

Last edited by nbvcxz (2009-07-01 16:49:46)

scio · 2009-07-01 18:00:49

I'm not at home right but, but I don't remember needing to use:

rootfstype=ext4

with 2.6.29+ but I also always use uuid for grub.

I have the exact same partition layout as you, and my grub entries always look like darthaxul's.

Cotton · 2009-07-10 20:50:07

Chroot into your system, download the latest kernel and try:

mkinitcpio -k 2.6.30.1-ARCH -c /etc/mkinitcpio -g /boot/kernel26.img

then reboot.

Last edited by Cotton (2009-07-10 21:45:05)

Arch Linux

#1 2009-06-30 21:52:28

Kernel panic after installing customized kernel for eee on ext4

#2 2009-07-01 00:37:20

Re: Kernel panic after installing customized kernel for eee on ext4

#3 2009-07-01 02:02:43

Re: Kernel panic after installing customized kernel for eee on ext4

#4 2009-07-01 07:07:03

Re: Kernel panic after installing customized kernel for eee on ext4

#5 2009-07-01 15:56:25

Re: Kernel panic after installing customized kernel for eee on ext4

#6 2009-07-01 16:08:26

Re: Kernel panic after installing customized kernel for eee on ext4

#7 2009-07-01 18:00:49

Re: Kernel panic after installing customized kernel for eee on ext4

#8 2009-07-10 20:50:07

Re: Kernel panic after installing customized kernel for eee on ext4

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