Ah ! De l'aide !!! Je suis content.
"fdisk -l /dev/hda" donne:
Disk /dev/hda: 163.9 GB, 163928604672 bytes
255 heads, 63 sectors/track, 19929 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hda1 525 19927 155854597+ 5 Extended
/dev/hda2 * 1 524 4208998+ 83 Linux
/dev/hda5 1913 3824 15358108+ 7 HPFS/NTFS
/dev/hda6 3825 19927 129347316 7 HPFS/NTFS
/dev/hda7 525 588 514017 82 Linux swap / Solaris
/dev/hda8 589 1912 10634998+ 83 Linux
Partition table entries are not in disk order
Et voici le contenu de "/boot/grub/menu.lst":
# menu.lst - See: grub(8), info grub, update-grub(8)
# grub-install(8), grub-floppy(8),
# grub-md5-crypt, /usr/share/doc/grub
# and /usr/share/doc/grub-doc/.
## default num
# Set the default entry to the entry number NUM. Numbering starts from 0, and
# the entry number 0 is the default if the command is not used.
#
# You can specify 'saved' instead of a number. In this case, the default entry
# is the entry saved with the command 'savedefault'.
default 0
## timeout sec
# Set a timeout, in SEC seconds, before automatically booting the default entry
# (normally the first entry defined).
timeout 90
# Pretty colours
color cyan/blue white/blue
## password ['--md5'] passwd
# If used in the first section of a menu file, disable all interactive editing
# control (menu entry editor and command-line) and entries protected by the
# command 'lock'
# e.g. password topsecret
# password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/
# password topsecret
#
# examples
#
# title Windows 95/98/NT/2000
# root (hd0,0)
# makeactive
"/boot/grub/menu.lst" 114L, 3218C 1,1 Haut
Voilà, voilou