I've got a PC *with certainly a hardware problem*, the installed Ubuntu doesn't boot, neither does Live CDs. (Although Ubuntu is correctly installed).

(the 'normal' boot freezes after some filesystem checks / networking startup)

However, GRUB2 seems to be ok, but I can't find any way to start a simple root shell, `bash` for instance. What can I tell `GRUB 1.97-b4` to start such a shell ?

(I guess some

```
linux /boot/...
initrd /boot/...

```

)

thanks for your help and point of views