Hd0,msdos1 read error

Tu faisais mention d'un second disque ;-\
Ou est-il ?

Peux-tu aussi nous afficher le contenu de "grub" (/boot/grub/grub.cfg).

je remet a jour : au démarrage, tantôt je vois un "grub loadingread error" et tantôt j'ai :
GRUB loading
Welcom to GRUB
hd0,msdos1 read error
entering rescue mode...
grub rescue>

ces messages sont aléatoires (autant que le démarrage du serveur) mais le problème viens peut-être de l'âge avancé du disque dur.

le second disque était débranché lorsque j'ai lacé le serveur,
voilà le second :

Disk /dev/sdb: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x1549f232

Device Boot Start End Blocks Id System
/dev/sdb1 17220 18494 10240000 82 Linux swap / Solaris
/dev/sdb2 18495 19458 7736993 7 HPFS/NTFS
/dev/sdb3 * 15868 17220 10854400 83 Linux
/dev/sdb4 1 15868 127457280 83 Linux

et grub.cfg :

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
load_env
fi
set default="0"
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi

function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}

function load_video {
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
}

insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set 798942f1-d20a-467f-a66d-06eb4dac8231
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
load_video
insmod gfxterm
fi
terminal_output gfxterm
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set 798942f1-d20a-467f-a66d-06eb4dac8231
set locale_dir=($root)/boot/grub/locale
set lang=fr
insmod gettext
set timeout=5
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=cyan/blue
set menu_color_highlight=white/blue
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Debian GNU/Linux, avec Linux 2.6.32-5-686' --class debian --class gnu-linux --class gnu $
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set 798942f1-d20a-467f-a66d-06eb4dac8231
echo 'Chargement de Linux 2.6.32-5-686 ...'
linux /boot/vmlinuz-2.6.32-5-686 root=UUID=798942f1-d20a-467f-a66d-06eb4dac8231 ro quiet
echo 'Chargement du disque mémoire initial ...'
initrd /boot/initrd.img-2.6.32-5-686
}
menuentry 'Debian GNU/Linux, avec Linux 2.6.32-5-686 (mode de dépannage)' --class debian --class gn$
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set 798942f1-d20a-467f-a66d-06eb4dac8231
echo 'Chargement de Linux 2.6.32-5-686 ...'
linux /boot/vmlinuz-2.6.32-5-686 root=UUID=798942f1-d20a-467f-a66d-06eb4dac8231 ro single
echo 'Chargement du disque mémoire initial ...'
initrd /boot/initrd.img-2.6.32-5-686
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###
### BEGIN /etc/grub.d/41_custom ###
if [ -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###