Kernel panic after several remasters

[Mordor]

Hello,

After several remasters I get a Kernel Panic. It says:

Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block (1,0)

Note, that if I add another master hard drive, then it boots fine from Grub from the second hard drive.

What could be the problem and can this be solved?

Here is my menu.lst

title puppy2
rootnoverify (hd0,0)
kernel (hd0,0)/vmlinuz root=/dev/ram0 acpi=off PMODE=idehd PMEDIA=idehd PDEV1=hda1
initrd (hd0,0)/initrd.gz
boot