Salut,
Je suis dessus depuis 4 heures…
J’ai été absent pendant 8 jours, et 250 Mo de MAJ m’attendaient.
J’ai lancé ça comme d’hab, sans m’en inquiéter plus que ça. Le problème c’est que je faisais autre chose en même temps, et absorbé, j’ai fait la MAJ de grub comme un cochon.
Résultat… ça marche plus.
J’ai essayé avec des LiveCD mais bien sur impossible, je suis en RAID1 + LVM.
J’ai essayé avec un CD d’installation Debian en mode Rescue, je retombe toujours sur grub rescue >
Dans grub rescue > j’ai essayé 50 possibilité (set root et set prefix) mais je m’y perd…
Une idée de la façon dont je peux me dépatouiller avec ça ?
Donc RAID1 + LVM
Boot séparé mais en Raid, racine et home dans le LVM
[code]# fdisk -l
Disk /dev/sda: 750.2 GB, 750155292160 bytes
255 heads, 63 sectors/track, 91201 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: 0x744bc8e4
Device Boot Start End Blocks Id System
/dev/sda1 * 1 91 730926 fd Linux raid autodetect
/dev/sda2 92 3130 24410767+ fd Linux raid autodetect
/dev/sda3 3131 91201 707430307+ 5 Extended
/dev/sda5 3131 91201 707430276 fd Linux raid autodetect
Disk /dev/sdc: 750.2 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 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: 0x000be274
Device Boot Start End Blocks Id System
/dev/sdc1 * 1 91 730926 fd Linux raid autodetect
/dev/sdc2 92 3130 24410767+ fd Linux raid autodetect
/dev/sdc3 3131 91201 707430307+ 5 Extended
/dev/sdc5 3131 91201 707430276 fd Linux raid autodetect
Disk /dev/sdd: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 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: 0x0004f5fd
Device Boot Start End Blocks Id System
/dev/sdd1 1 243201 1953512001 83 Linux
Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 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: 0x000aa86e
Device Boot Start End Blocks Id System
/dev/sdb1 * 1 6374 51199123+ 83 Linux
Disk /dev/md0: 748 MB, 748355584 bytes
2 heads, 4 sectors/track, 182704 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/md0 doesn’t contain a valid partition table
Disk /dev/md1: 25.0 GB, 24996544512 bytes
2 heads, 4 sectors/track, 6102672 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/md1 doesn’t contain a valid partition table
Disk /dev/md2: 724.4 GB, 724408532992 bytes
2 heads, 4 sectors/track, 176857552 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/md2 doesn’t contain a valid partition table
Disk /dev/dm-0: 7998 MB, 7998537728 bytes
255 heads, 63 sectors/track, 972 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: 0x00000000
Disk /dev/dm-0 doesn’t contain a valid partition table
Disk /dev/dm-1: 50.0 GB, 49996103680 bytes
255 heads, 63 sectors/track, 6078 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: 0x00000000
Disk /dev/dm-1 doesn’t contain a valid partition table
Disk /dev/dm-2: 350.0 GB, 349997891584 bytes
255 heads, 63 sectors/track, 42551 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: 0x00000000
Disk /dev/dm-2 doesn’t contain a valid partition table
[/code]
# cat /media/dm-1/boot/grub/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="${chosen}"
save_env saved_entry
fi
}
function load_video {
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
}
insmod raid
insmod mdraid
insmod lvm
insmod part_msdos
insmod part_msdos
insmod ext2
set root='(lvm-root)'
search --no-floppy --fs-uuid --set e58aee60-18f8-4beb-ade8-0ac4190ad902
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
load_video
insmod gfxterm
fi
if terminal_output gfxterm ; then true ; else
# For backward compatibility with versions of terminal.mod that don't
# understand terminal_output
terminal gfxterm
fi
insmod raid
insmod mdraid
insmod lvm
insmod part_msdos
insmod part_msdos
insmod ext2
set root='(lvm-root)'
search --no-floppy --fs-uuid --set e58aee60-18f8-4beb-ade8-0ac4190ad902
set locale_dir=($root)/boot/grub/locale
set lang=C.UTF-8
insmod gettext
set timeout=5
play 480 440 1
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/05_debian_theme ###
insmod raid
insmod mdraid
insmod lvm
insmod part_msdos
insmod part_msdos
insmod ext2
set root='(lvm-root)'
search --no-floppy --fs-uuid --set e58aee60-18f8-4beb-ade8-0ac4190ad902
insmod png
if background_image /usr/share/images/desktop-base/moreblue-orbit-grub.png ; then
set color_normal=black/black
set color_highlight=magenta/black
else
set menu_color_normal=cyan/blue
set menu_color_highlight=white/blue
fi
### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/10_linux ###
### 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 ###
J’ai installé une SID vite fait (20 minutes avec apt-cacher-ng
) sur sdb pour accéder à mes fichiers…
Maintenant que la SID est installée je peux facilement faire un chroot.
# mount
/dev/sdb1 on / type ext3 (rw,errors=remount-ro)
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type tmpfs (rw,mode=0755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
fusectl on /sys/fs/fuse/connections type fusectl (rw)
/dev/mapper/lvm-root on /dev/mapper/lvm-root type ext3 (rw)
/dev/mapper/lvm-home on /dev/mapper/lvm-home type ext3 (rw)
/dev/md0 on /media/md0 type ext3 (rw)
/dev/md1 on /media/md1 type ext4 (rw)
/dev/sdd1 on /media/sdd1 type ext4 (rw)
J’installe grub sur /dev/sd, /dev/mapper ou /dev/md ? Je ne sais plus 
Un coup de main pour m’aider à y voir clair serait le bienvenu… ![]()


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