ripristino grub

[Luca Delucchi]

Non riesco più ad avviare Ubuntu, ho cercato già in diversi modi di
ripristinare grub, ma senza successo, sia con la live sia bootando
ubuntu con il cd. Ecco i passaggi che faccio, cosa mi suggerite?

luca@luca-desktop:~$ sudo /usr/sbin/grub (oppure solo grub)
Password:
Probing devices to guess BIOS drives. This may take a long time.

       [ Minimal BASH-like line editing is supported.   For
         the   first   word,  TAB  lists  possible  command
         completions.  Anywhere else TAB lists the possible
         completions of a device/filename. ]
grub> find /boot/grub/stage1
find /boot/grub/stage1
 (hd0,1)
grub> root (hd0,1)
root (hd0,1)
grub> setup (hd0,1) (oppure setup (hd0))
setup (hd0,1)
 Checking if "/boot/grub/stage1" exists... yes
 Checking if "/boot/grub/stage2" exists... yes
 Checking if "/boot/grub/e2fs_stage1_5" exists... yes
 Running "embed /boot/grub/e2fs_stage1_5 (hd0,1)"... failed (this is not fatal)
 Running "embed /boot/grub/e2fs_stage1_5 (hd0,1)"... failed (this is not fatal)
 Running "install /boot/grub/stage1 (hd0,1) /boot/grub/stage2 p
/boot/grub/menu.lst "... succeeded
Done.