I was installing gentoo 2005.1 messed up my grub file. After rebooting, I get the following:

!!Block device boot(hd0,0) is not a valid root device...
!!The root block device is unspecified or not detected.
Please specify a devie to boot, or "shell" for a shell...
boot () ::

This is a simple config where I have one disk as follows:

/dev/sda1 /boot
/dev/sda2 swap
/dev/sda3 /
-----
My grub.conf is:
default 0
timeout 30
splashimage=(hd0,0)/grub/splash.xpm.gz

title=Gentoo Linux 2.6.12-r6
root (hd0,0)
kernel /kernel-genkernel-x86-2.6.12-gentoo-r6 root=/dev/ram0 init=/linuxrc ramdisk=8192 real_root=/dev/sda3 udev
initrd /initramfs-genkernel-x86-2.6.12-gentoo-r6
-----
Bec. I am using scsi I think I should have used root (hd0,1), but I am not sure. What do I do at the 'boot () ::' so I can edit grub?

<--AJ

su
grub
root (hdX,y)
setup (hd0)
quit

thanks, but 'su' doesn't do anything, nor does 'grub'

ok I was able to get to grub and change the config, but I get the same errors. 'quit' does not work. It says use 'escape' to get to the previous menu. Does it save the changes doing that? Any idea what my root device should be? I know it's /dev/sda3.

Here is how:
http://www.sorgonet.com/linux/grubrestore/