Kernel panic !?

[Nihilanth]

Okay, Installing gentoo for the Ninth time, this time, more determined than ever to make it work. I compiled my own kernel this time too. Alright, well when i first rebooted after the gentoo install (stage3) the booting froze at acpi. So i went back in, disabled acpi from the kernel and added apm. after I did that I got kernel panic and an error stating two things..."UDF-fs no partition found (1)" and "not syncing VFS unable to mount fs on unkown block." I Then got advice in #gentoo to add the line append="acpi=noirq" to my lilo.conf. It didn't help any. All help is greatly appreciated.

[Salient]

It sounds like a bad install disc to me ...
At the Lilo prompt at bootup hit the TAB key - you will see a list of bootable kernels ... the first one listed is your "default kernel" the one that is booted. Try selecting your old kernel and re-booting to see if it works ... or try going into single user mode - enter the name of the kernel you want to boot followed by a space and then the word single. It works like Windows Recovery Mode. (EX-) lilo: linux single

[Nihilanth]

Um, I dont think the old kernel will show up. But I'll check and reply tommorrow. (It's late) I just found out I need to add agpgart as a kernel module, so if anybody can tell me how to do that too (it wasnt in the module listing) with genkernel or my own compiled one, i would appreciate it.

[variant]

looks to me like you have set up /etc/fstab wrongly and the kernel is looking for the wrong root partition. cant be sure really, its a long time since i saw a kernel panic.

[sarumont]

looks to me like you have set up /etc/fstab wrongly and the kernel is looking for the wrong root partition. cant be sure really, its a long time since i saw a kernel panic.

It could also be caused by you not having the correct FS support in your kernel. Remember that you must build in support for your root FS.