I've installed (several times) on a ThinkPad T-40, trying both manual
kernel config and genkernel. I followed the online manual explicitly (I
think). The machine is currently loaded with the manual config. Either
way, the results are similar.
Grub shows the two boot options, then begins loading the OS.
The machine begins to boot, starts loading modules, then kernel panics:
VFS:Cannot open root device "hda3" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
There is a single fixed disk:
Device Boot Size System Filesystem Mount point
======= ==== ===== ========= ========= =========
/dev/hda1 * 32M Linux ext2 /boot
/dev/hda2 3G Linux swap none none
/dev/hda3 ~71G Linux ext3 /
I am able to mount and use these partitions after booting from CD.
/etc/fstab (/mnt/gentoo/etc/fstab when booted from disk) looks good.
Filesystems ext2 and ext3 are compiled into the kernel.