After kernelupdate to 26-2.6.20.1-1 i get: Kernel Panic

[barbalander]

Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

I have a Amilio 3834G with i guess intel chipset and scsi harddrives, pentium M. I've tried to add the lines in grub: modules=piix blaha blaha. I can boot init...bla fallback and it's working. Have googled all day but i cant get it to work hmm.

Anyone, plz help.

[bryansmith]

Some Intel boards (like mine for instance) require that you add 'earlymodules=piix' to the kernel line of your menu.lst.

You can edit your line by pushing 'e' on your Arch entry at the Grub menu. When you are there, edit the kernel line. Make sure to change it permanently after the system has booted because editing at the Grub menu is temporary.

[barbalander]

Some Intel boards (like mine for instance) require that you add 'earlymodules=piix' to the kernel line of your menu.lst.

You can edit your line by pushing 'e' on your Arch entry at the Grub menu. When you are there, edit the kernel line. Make sure to change it permanently after the system has booted because editing at the Grub menu is temporary.

Still get: Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block (0,0)

And my kernelline looks like this:

root (hd0,4)
kernel /boot/vmlinuz26 root=/dev/sda5 ro earlymodules=piix
initrd /boot/initrd26.img

[barbalander]

I edited my grub from:

initrd /boot/image26.... to
initrd /boot/kernel26.img

Now it works. But what have i done?

[bryansmith]

Arch changed from initrd to mkinitcpio (a replacement developed by members of the Arch community). More info can be found here: http://wiki.archlinux.org/index.php/Mkinitcpio

Yeah, if you don't read the message with the kernel upgrade, you can get thrown off. It happened to me many times...