[SOLVED] How to restore kernel image after wrong /etc/mkinitcpio.conf

Question

I wanted to learn a bit more about the kernel and boot, and I'm afraid I cannot start up my ArchLinux anymore.
I updated the /etc/mkinitcpio.conf to make the boot faster (with this reference: http://kmandla.wordpress.com/2007/01/30 … initcpio/) and executed #mkinitcpio -p kernel26
I thought that if there was any problem, I could start up with the "fallback image". Certainly, there was a problem (probably I didn´t loaded all the modules required) and when I tried the fallback image, I experimented the same problem:
Root device '/dev/disk/by-uuid/...' doesn´t exist
ramfs$
In fact, both images are the same (or at least they have the same size)
I tried the ArchLinux liveCD to recover my system. There's no recovery service, so I started up the CD-ROM, mounted my ArchLinux partitions, generated the images and copied into the /boot of my Archlinux partitions. But the same problem is still there.
What could I do to fix it?
Thank you in advance
Last edited by jjjaime (2009-05-10 15:45:45)

Answer 1

Thank you. I follow your instructions and it worked (perhaps it would be simpler with a "#pacman -Sy kernel26"). I didn't know the command chroot and it's really interesting.
red_erik wrote:
I have a similar problem, (read more in this thread), and I solve it by booting off the Live CD, and doing the following:
(replace sda1 with your / partition)
cd /
mount -t ext3 /dev/sda1 /mnt
mount -t proc proc /mnt/proc
mount -t sysfs sys /mnt/sys
mount -o bind /dev /mnt/dev
chroot /mnt /bin/bash
mkinitcpio -p kernel26
after that, I exit chroot, unmount all of my partitions and reboot...:
cd /
umount -a
exit
cd /
umount -a
reboot
hope this helps...