Salut,
Bien vu les notes. Merci lol 
Si, mais je ne savais pas.
Bon alors depuis hier, dans l’ordre.
aptitude reinstall linux-image-2.6.32-5-amd64root@ksxxx:~# update-grub2
Generating grub.cfg ...
Found linux image: /boot/vmlinuz-2.6.32-5-amd64
Found initrd image: /boot/initrd.img-2.6.32-5-amd64
Warning: update-grub_lib is deprecated, use grub-mkconfig_lib instead
Found linux image: /boot/bzImage-2.6.38.2-xxxx-grs-ipv6-64
No volume groups found
done
root@ksxxx:~#
Premier Reboot du serveur, après cela (21h40) aucun signe de redémarrage, pas de mail fail2ban, (si pour stopped, mais pas de started) logcheck, logwatch, etc …
Un ping, hier soir, ok! Ce matin également.
J’ai laissé tels que toute la nuit.
Ce matin, (06h20) toujours pas de signe avant-coureur d’un reboot prise en compte. Aucun mail fail2ban etc …
À partir du Manager, j’ai lancé un deuxième/reboot, pas mieux.
ssh: connect to host x.x.x.x port 22: Connection refusedTroisième Reboot/rescue. (07h00 +ou-) (pas vu de présence du noyau Debian dans le Manager)
Vérification scrupuleuse et minutieuse d’un éventuel ban. (fail2ban, denyhosts, portsebtry etc …)
Pareil pour tous les logs.
/sbin/rebootssh: connect to host x.x.x.x port 22: Connection refusedQuatrième reboot/rescue (08h10 +ou-)
Mêmes procédures encore plus soignées.
Puis …
[quote]/var/log/auth.log
Mar 11 21:40:36 ksxxx sshd[5134]: pam_unix(sshd:session): session closed for user mon_user_labas
Mar 11 21:40:36 ksxxx su[5169]: pam_unix(su:session): session closed for user root
[/quote]
# cat /var/log/boot
Mon Mar 12 08:15:47 2012: Activating swap...done.
Mon Mar 12 08:15:47 2012: Checking root file system...fsck from util-linux-ng 2.17.2
Mon Mar 12 08:15:47 2012: e2fsck 1.41.12 (17-May-2010)
Mon Mar 12 08:15:47 2012: /dev/sda1: clean, 39859/6406144 files, 457125/25599744 blocks
Mon Mar 12 08:15:47 2012: done.
Mon Mar 12 08:15:47 2012: Cleaning up ifupdown....
Mon Mar 12 08:15:47 2012: Loading kernel modules...done.
Mon Mar 12 08:15:47 2012: Setting up networking....
Mon Mar 12 08:15:47 2012: Assembling MD arrays...done (no arrays found in config file or automatically).
Mon Mar 12 08:15:47 2012: Setting up LVM Volume Groups Reading all physical volumes. This may take a while...
Mon Mar 12 08:15:47 2012: No volume groups found
Mon Mar 12 08:15:47 2012: No volume groups found
Mon Mar 12 08:15:47 2012: No volume groups found
Mon Mar 12 08:15:47 2012: .
Mon Mar 12 08:15:47 2012: Activating lvm and md swap...done.
Mon Mar 12 08:15:47 2012: Checking file systems...fsck from util-linux-ng 2.17.2
Mon Mar 12 08:15:47 2012: e2fsck 1.41.12 (17-May-2010)
Mon Mar 12 08:15:47 2012: /dev/sda2: clean, 34/6406144 files, 249972/25599744 blocks
Mon Mar 12 08:15:47 2012: e2fsck 1.41.12 (17-May-2010)
Mon Mar 12 08:15:47 2012: /dev/sda3: clean, 11720/38641664 files, 1493793/154555648 blocks
Mon Mar 12 08:15:47 2012: e2fsck 1.41.12 (17-May-2010)
Mon Mar 12 08:15:47 2012: /dev/sda5: recovering journal
Mon Mar 12 08:15:47 2012: /dev/sda5: clean, 48640/6406144 files, 645953/25599743 blocks
Mon Mar 12 08:15:47 2012: e2fsck 1.41.12 (17-May-2010)
Mon Mar 12 08:15:47 2012: /dev/sda7: recovering journal
Mon Mar 12 08:15:47 2012: /dev/sda7: clean, 14/2957312 files, 139237/11809791 blocks
Mon Mar 12 08:15:47 2012: done.
Mon Mar 12 08:15:47 2012: Mounting local filesystems...done.
Mon Mar 12 08:15:47 2012: Activating swapfile swap...done.
Mon Mar 12 08:15:47 2012: Cleaning up temporary files....
Mon Mar 12 08:15:47 2012: cleaning udev files from nasty persistent network rules
Mon Mar 12 08:15:47 2012: creating /etc/udev/rules.d/75-persistent-net-generator.rules to override /lib/udev/rules.d/75-persistent-net-generator.rules
Mon Mar 12 08:15:47 2012: Configuring network interfaces...Setting kernel variables ...done.
Mon Mar 12 08:15:48 2012: done.
Mon Mar 12 08:15:48 2012: Cleaning up temporary files....
root@rescue:/#
root@rescue:/# cat /var/log/message* | grep -c "authentication failure"
0
root@rescue:/# grep menuentry /boot/grub/grub.cfg
menuentry 'Debian GNU/Linux, avec Linux 2.6.32-5-amd64' --class debian --class gnu-linux --class gnu --class os {
menuentry 'Debian GNU/Linux, avec Linux 2.6.32-5-amd64 (mode de dépannage)' --class debian --class gnu-linux --class gnu --class os {
menuentry "Debian GNU/Linux, OVH kernel 2.6.38.2-xxxx-grs-ipv6-64" {
root@rescue:/#
root@rescue:/# ls /etc/grub.d/
00_header 05_debian_theme 10_linux 11_OVHkernel 20_linux_xen 30_os-prober 40_custom 41_custom README
root@rescue:/#
Le noyau est bien installé, et en bonne place.
[code]root@rescue:/# grub-mkconfig
Generating 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 $prefix/grubenv ]; then
load_env
fi
set default=“1”
if [ “${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="${chosen}"
save_env saved_entry
fi
}
function load_video {
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
}
insmod part_msdos
insmod ext2
set root=’(hd0,msdos1)’
search --no-floppy --fs-uuid --set xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
load_video
insmod gfxterm
fi
terminal_output gfxterm
insmod part_msdos
insmod ext2
set root=’(hd0,msdos1)’
search --no-floppy --fs-uuid --set xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
set locale_dir=($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
Found linux image: /boot/vmlinuz-2.6.32-5-amd64
Found initrd image: /boot/initrd.img-2.6.32-5-amd64
menuentry ‘Debian GNU/Linux, avec Linux 2.6.32-5-amd64’ --class debian --class gnu-linux --class gnu --class os {
insmod part_msdos
insmod ext2
set root=’(hd0,msdos1)’
search --no-floppy --fs-uuid --set xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
echo ‘Chargement de Linux 2.6.32-5-amd64 …’
linux /boot/vmlinuz-2.6.32-5-amd64 root=/dev/sda1 ro quiet
echo ‘Chargement du disque mémoire initial …’
initrd /boot/initrd.img-2.6.32-5-amd64
}
menuentry ‘Debian GNU/Linux, avec Linux 2.6.32-5-amd64 (mode de dépannage)’ --class debian --class gnu-linux --class gnu --class os {
insmod part_msdos
insmod ext2
set root=’(hd0,msdos1)’
search --no-floppy --fs-uuid --set xxxxxxxxxxxxxxxxxxxxxxxxxx
echo ‘Chargement de Linux 2.6.32-5-amd64 …’
linux /boot/vmlinuz-2.6.32-5-amd64 root=/dev/sda1 ro single
echo ‘Chargement du disque mémoire initial …’
initrd /boot/initrd.img-2.6.32-5-amd64
}
END /etc/grub.d/10_linux
BEGIN /etc/grub.d/11_OVHkernel
Warning: update-grub_lib is deprecated, use grub-mkconfig_lib instead
Found linux image: /boot/bzImage-2.6.38.2-xxxx-grs-ipv6-64
menuentry “Debian GNU/Linux, OVH kernel 2.6.38.2-xxxx-grs-ipv6-64” {
insmod part_msdos
insmod ext2
set root=’(hd0,msdos1)’
search --no-floppy --fs-uuid --set xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
linux /boot/bzImage-2.6.38.2-xxxx-grs-ipv6-64 root=/dev/sda1 ro quiet
}
END /etc/grub.d/11_OVHkernel
BEGIN /etc/grub.d/20_linux_xen
END /etc/grub.d/20_linux_xen
BEGIN /etc/grub.d/30_os-prober
No volume groups found
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
done
root@rescue:/#
[/code]
root@rescue:/# dd if=/dev/sda bs=512 count=1 | strings
1+0 enregistrements lus
1+0 enregistrements écrits
512 octets (512 B) copiés, 0,0002622 s, 2,0 MB/s
ZRr=
`|f
\|f1
GRUB
Geom
Hard Disk
Read
Error
root@rescue:/#
Question (bête peut être) n’y a t’il pas un délai avant prise en compte, genre 24/48/72 heures ?
Suis toujours en rescue (pour l’heure, si … ) Autre idée ? 
un réflexe qui perdure pour toutes infos à exclure sur la toile, pas lieu d’être ici certes, C’est un réflexe tous con 
?
)
non! hein ?
