I'm delving into GRUB bughunting now. GRUB 0.96 is apparently sensitive to the order in which "device xxx" commands are entered. Sounds horrid, aye... Ie. typing: grub> device (hd0) /dev/xxx grub> device (hd0,5) /dev/yyy Is a completely different thing to typing: grub> device (hd0,5) /dev/yyy grub> device (hd0) /dev/xxx Reproducible: Always. Here's an example. (I added "grub_printf" to rawread to try and find out why the OUTSIDE error happens, never mind the "raw reading" messages. Also added # comments.) ======================== GNU GRUB version 0.96 (640K lower / 3072K upper memory) # Tell GRUB about devices grub> device (hd0) /dev/mapper/hpt37x_ehgjaggaf grub> device (hd0,5) /dev/mapper/hpt37x_ehgjaggaf6 # Tell GRUB where to find it's files grub> root (hd0,5)/boot Attempt to open drive 0x80 (/dev/mapper/hpt37x_ehgjaggaf6) - Raw reading from offset 0 Error 5: Partition table invalid or corrupt # Refresh GRUB's memory on where device hd0 is. # _Same_ command as first command entered (above). grub> device (hd0) /dev/mapper/hpt37x_ehgjaggaf # Notice the different error message! grub> root (hd0,5)/boot Attempt to open drive 0x80 (/dev/mapper/hpt37x_ehgjaggaf) - Raw reading from offset 0 - Raw reading from offset 0 - Raw reading from offset 0 - Raw reading from offset 0 - Raw reading from offset 0 - Raw reading from offset 41961780 Error 18: Selected cylinder exceeds maximum supported by BIOS grub> ========================
