Arch Linux

I have a feeling that this is a misconfiguration rather then a bug.

I would prefer it to be a misconfiguration. Guide me to provide you more details to trace the root of the problem.

Are you sure your root partition has that UUID?

Yes, I cross checked the uuid of the root partition: it matches with the one in the image.

Hi,

I have the same problem after today's pacman -Syu update - I think kernel was update.
I don't change configuration today. After reboot I saw error : Root device does not exist ...

My grub menu.lst:
<"menu.lst">
# (0) Arch Linux
title Arch Linux
root (hd1,0)
kernel /vmlinuz26 root=/dev/sdb5 ro
initrd /kernel26.img

# (1) Arch Linux
title Arch Linux Fallback
root (hd1,0)
kernel /vmlinuz26 root=/dev/sdb5 ro
initrd /kernel26-fallback.img

# (2) Windows
title Windows
rootnoverify (hd0,0)
makeactive
chainloader +1
</"menu.lst">

It can be a good clue: ls -l /boot/
<"ls -l /boot/">
drwxr-xr-x 2 root root 4096 2010-11-28 23:55 grub
-rw-r--r-- 1 root root 8691963 2010-11-07 09:02 kernel26-fallback.img
-rw-r--r-- 1 root root 2034018 2010-11-07 09:01 kernel26.img
drwx------ 2 root root 16384 2010-03-23 20:22 lost+found
-rw-r--r-- 1 root root 1456835 2010-11-23 23:42 System.map26
-rw-r--r-- 1 root root 2208320 2010-11-23 23:42 vmlinuz26
</"ls -l /boot/">
I can't start my linux machine at all :( - fallback not working.

Arch is providing 2.6.36 kernel now. Please specify your kernel version. I have reported the problem for 2.6.35. A temporary solution would be to chroot into your / from a live cd and compile an older version. I ran 2.6.34 when I was facing this issue.

My kernel is 2.6.36 and I found solution :)

In pacman.log was:
<pacman.log>
[2010-11-28 16:01] >>> Generating initial ramdisk, using mkinitcpio. Please wai
t...
[2010-11-28 16:01] ==> Building image "default"
[2010-11-28 16:01] ==> Running command: /sbin/mkinitcpio -k 2.6.36-ARCH -c /etc/
mkinitcpio.conf -g /boot/kernel26.img
[2010-11-28 16:01] :: Begin build
[2010-11-28 16:01] :: Parsing hook [base]
[2010-11-28 16:01] :: Parsing hook [udev]
[2010-11-28 16:01] :: Parsing hook [autodetect]
[2010-11-28 16:01] :: Parsing hook [pata]
[2010-11-28 16:01] :: Parsing hook [scsi]
[2010-11-28 16:01] :: Parsing hook [sata]
[2010-11-28 16:01] ==> FAIL
<\pacman.log>

And solution is :
1. starting ArchLinux LiveCD
2. mounting root partition
3. chroot to root-partition
4. and execute mkinitcpio -p kernel26

That's all.
This bug is closed for me. Thanks for ur patience - sometimes the solution is comming after verbalization :)

Well that is why I specified the kernel version. The error does not occur in 2.6.36 or in 2.6.34.

My problem is in kernel 2.6.36 :) - during pacman update.

is this issue still around?

This bug is closed for me. Solution above.

I have upgraded to latest kernel and this issue is not there. If anyone is still using older kernel, he might be interested in it. The bug is closed for me.