bonjour 
voila,j’ai un probleme au demarrage de debian,je viens de le telecharger ,et au redemmarage ,il me dit"ALERT! /dev/sde1 does not exist.Dropping to a shell"…merci d’avance…
donne ici
fdisk -l
si tu peux passer par une autre distrib
je suis sur ubuntu et dans le terminal la commande #fdisk -l ne donne rien.lorsque j’ai chargé debian il ne m’as pas demander le pilote du disque dur,il est passé sans accros.mon hd:ATA Hitachi HDS72161
Sur Ubuntu ça doit être:
sudo fdisk -l
Enfin, en mode administrateur.
Disque /dev/sda: 160.0 Go, 160041885696 octets
255 heads, 63 sectors/track, 19457 cylinders
Units = cylindres of 16065 * 512 = 8225280 bytes
Identifiant disque: 0x94e8ec18
Périphérique Amorce Début Fin Blocs Id Système
/dev/sda1 * 1 7913 63561141 83 Linux
/dev/sda2 7914 19457 92727180 5 Extended
/dev/sda5 19128 19457 2650693+ 82 Linux swap / Solaris
/dev/sda6 7914 18665 86365377 83 Linux
/dev/sda7 18666 19127 3710983+ 82 Linux swap / Solaris
Ben oui, normalement il devrait booter sur sda1. Mais, là il faudrait quelqu’un de plus expert que moi. A moins que tu réinstalles le Grub via ton cd d’installation (etchnhalf, je suppose vu que tu as marqué résolu) en mode rescue et à la fin quand il te demande où installer tu mets (hdo).
Donne ton fichier:
/boot/grub/menu.lst
pour rebooter sa risque d’etre du kamikas,je viens de reinstaller ubuntu ,j’etais dessus toute la nuit pour recharger tous les programmes,hier deja a l’installation de debian j’ai effacé ubuntu,maintenant j’ai les deux mais il y a ce petit probleme d’erreurs…en tous cas merci de ton aide mais je prefere attendre plutot que de recharger…salut 
Tu n’as pas à recharger. Tu vas juste réinstaller le grub. Et ton fichier /boot/grub/menu.lst; il donne quoi?
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’.
WARNING: If you are using dmraid do not use ‘savedefault’ or your
array will desync and will not let you boot your system.
default 0
timeout sec
Set a timeout, in SEC seconds, before automatically booting the default entry
(normally the first entry defined).
timeout 10
hiddenmenu
Hides the menu by default (press ESC to see the menu)
#hiddenmenu
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
chainloader +1
title Linux
root (hd0,1)
kernel /vmlinuz root=/dev/hda2 ro
Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST
BEGIN AUTOMAGIC KERNELS LIST
lines between the AUTOMAGIC KERNELS LIST markers will be modified
by the debian update-grub script except for the default options below
DO NOT UNCOMMENT THEM, Just edit them to your needs
## Start Default Options
default kernel options
default kernel options for automagic boot options
If you want special options for specific kernels use kopt_x_y_z
where x.y.z is kernel version. Minor versions can be omitted.
e.g. kopt=root=/dev/hda1 ro
kopt_2_6_8=root=/dev/hdc1 ro
kopt_2_6_8_2_686=root=/dev/hdc2 ro
kopt=root=UUID=7a684347-e7bf-47c0-9bd7-5d52ea856ddd ro
Setup crashdump menu entries
e.g. crashdump=1
crashdump=0
default grub root device
e.g. groot=(hd0,0)
groot=(hd0,5)
should update-grub create alternative automagic boot options
e.g. alternative=true
alternative=false
alternative=true
should update-grub lock alternative automagic boot options
e.g. lockalternative=true
lockalternative=false
lockalternative=false
additional options to use with the default boot option, but not with the
alternatives
e.g. defoptions=vga=791 resume=/dev/hda5
defoptions=quiet splash
should update-grub lock old automagic boot options
e.g. lockold=false
lockold=true
lockold=false
Xen hypervisor options to use with the default Xen boot option
xenhopt=
Xen Linux kernel options to use with the default Xen boot option
xenkopt=console=tty0
altoption boot targets option
multiple altoptions lines are allowed
e.g. altoptions=(extra menu suffix) extra boot options
altoptions=(recovery) single
altoptions=(recovery mode) single
controls how many kernels should be put into the menu.lst
only counts the first occurence of a kernel, not the
alternative kernel options
e.g. howmany=all
howmany=7
howmany=all
should update-grub create memtest86 boot option
e.g. memtest86=true
memtest86=false
memtest86=true
should update-grub adjust the value of the default booted system
can be true or false
updatedefaultentry=false
should update-grub add savedefault to the default options
can be true or false
savedefault=false
## End Default Options
title Ubuntu 8.04.1, kernel 2.6.24-19-generic
root (hd0,5)
kernel /boot/vmlinuz-2.6.24-19-generic root=UUID=7a684347-e7bf-47c0-9bd7-5d52ea856ddd ro quiet splash
initrd /boot/initrd.img-2.6.24-19-generic
quiet
title Ubuntu 8.04.1, kernel 2.6.24-19-generic (recovery mode)
root (hd0,5)
kernel /boot/vmlinuz-2.6.24-19-generic root=UUID=7a684347-e7bf-47c0-9bd7-5d52ea856ddd ro single
initrd /boot/initrd.img-2.6.24-19-generic
title Ubuntu 8.04.1, memtest86+
root (hd0,5)
kernel /boot/memtest86+.bin
quiet
END DEBIAN AUTOMAGIC KERNELS LIST
This is a divider, added to separate the menu items below from the Debian
ones.
title Other operating systems:
root
This entry automatically added by the Debian installer for an existing
linux installation on /dev/sda1.
title Debian GNU/Linux, kernel 2.6.24-etchnhalf.1-686 (on /dev/sda1)
root (hd0,0)
kernel /boot/vmlinuz-2.6.24-etchnhalf.1-686 root=/dev/sde1 ro quiet
initrd /boot/initrd.img-2.6.24-etchnhalf.1-686
savedefault
boot
This entry automatically added by the Debian installer for an existing
linux installation on /dev/sda1.
title Debian GNU/Linux, kernel 2.6.24-etchnhalf.1-686 (single-user mode) (on /dev/sda1)
root (hd0,0)
kernel /boot/vmlinuz-2.6.24-etchnhalf.1-686 root=/dev/sde1 ro single
initrd /boot/initrd.img-2.6.24-etchnhalf.1-686
savedefault
boot
A la place de sde sa ne devrait pas etre sda?
[quote=“fergo”]# 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’.
WARNING: If you are using dmraid do not use ‘savedefault’ or your
array will desync and will not let you boot your system.
default 0
timeout sec
Set a timeout, in SEC seconds, before automatically booting the default entry
(normally the first entry defined).
timeout 10
hiddenmenu
Hides the menu by default (press ESC to see the menu)
#hiddenmenu
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
chainloader +1
title Linux
root (hd0,1)
kernel /vmlinuz root=/dev/hda2 ro
Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST
BEGIN AUTOMAGIC KERNELS LIST
lines between the AUTOMAGIC KERNELS LIST markers will be modified
by the debian update-grub script except for the default options below
DO NOT UNCOMMENT THEM, Just edit them to your needs
## Start Default Options
default kernel options
default kernel options for automagic boot options
If you want special options for specific kernels use kopt_x_y_z
where x.y.z is kernel version. Minor versions can be omitted.
e.g. kopt=root=/dev/hda1 ro
kopt_2_6_8=root=/dev/hdc1 ro
kopt_2_6_8_2_686=root=/dev/hdc2 ro
kopt=root=UUID=7a684347-e7bf-47c0-9bd7-5d52ea856ddd ro
Setup crashdump menu entries
e.g. crashdump=1
crashdump=0
default grub root device
e.g. groot=(hd0,0)
groot=(hd0,5)
should update-grub create alternative automagic boot options
e.g. alternative=true
alternative=false
alternative=true
should update-grub lock alternative automagic boot options
e.g. lockalternative=true
lockalternative=false
lockalternative=false
additional options to use with the default boot option, but not with the
alternatives
e.g. defoptions=vga=791 resume=/dev/hda5
defoptions=quiet splash
should update-grub lock old automagic boot options
e.g. lockold=false
lockold=true
lockold=false
Xen hypervisor options to use with the default Xen boot option
xenhopt=
Xen Linux kernel options to use with the default Xen boot option
xenkopt=console=tty0
altoption boot targets option
multiple altoptions lines are allowed
e.g. altoptions=(extra menu suffix) extra boot options
altoptions=(recovery) single
altoptions=(recovery mode) single
controls how many kernels should be put into the menu.lst
only counts the first occurence of a kernel, not the
alternative kernel options
e.g. howmany=all
howmany=7
howmany=all
should update-grub create memtest86 boot option
e.g. memtest86=true
memtest86=false
memtest86=true
should update-grub adjust the value of the default booted system
can be true or false
updatedefaultentry=false
should update-grub add savedefault to the default options
can be true or false
savedefault=false
## End Default Options
title Ubuntu 8.04.1, kernel 2.6.24-19-generic
root (hd0,5)
kernel /boot/vmlinuz-2.6.24-19-generic root=UUID=7a684347-e7bf-47c0-9bd7-5d52ea856ddd ro quiet splash
initrd /boot/initrd.img-2.6.24-19-generic
quiet
title Ubuntu 8.04.1, kernel 2.6.24-19-generic (recovery mode)
root (hd0,5)
kernel /boot/vmlinuz-2.6.24-19-generic root=UUID=7a684347-e7bf-47c0-9bd7-5d52ea856ddd ro single
initrd /boot/initrd.img-2.6.24-19-generic
title Ubuntu 8.04.1, memtest86+
root (hd0,5)
kernel /boot/memtest86+.bin
quiet
END DEBIAN AUTOMAGIC KERNELS LIST
This is a divider, added to separate the menu items below from the Debian
ones.
title Other operating systems:
root
This entry automatically added by the Debian installer for an existing
linux installation on /dev/sda1.
title Debian GNU/Linux, kernel 2.6.24-etchnhalf.1-686 (on /dev/sda1)
root (hd0,0)
kernel /boot/vmlinuz-2.6.24-etchnhalf.1-686 root=/dev/sde1 ro quiet
initrd /boot/initrd.img-2.6.24-etchnhalf.1-686
savedefault
boot
This entry automatically added by the Debian installer for an existing
linux installation on /dev/sda1.
title Debian GNU/Linux, kernel 2.6.24-etchnhalf.1-686 (single-user mode) (on /dev/sda1)
root (hd0,0)
kernel /boot/vmlinuz-2.6.24-etchnhalf.1-686 root=/dev/sde1 ro single
initrd /boot/initrd.img-2.6.24-etchnhalf.1-686
savedefault
boot[/quote]
Remplace ce que j’ai mis en gras par sda1.
N’oublie pas d’ouvrier le fichier en mode administrateur; par exemple:
sudo gedit /boot/grub/menu.lst
oui ,j’ai aussi remarquer,merci beaucoup pour ton aide ,je vais essayer et je te le dis,si sa marche je mettrais resolu
çà marche,je suis a l’instant meme sur debian,merci beaucoup"ton savoir n’est pas piece perdu" salut,et a bientot!