fdisk -l /dev/hda
 
Disk /dev/hda: 20.5 GB, 20576747520 bytes
255 heads, 63 sectors/track, 2501 cylinders
Units = cylindres of 16065 * 512 = 8225280 bytes
 
Périphérique Amorce    Début       Fin    Blocs   Id  Système
/dev/hda1   *         1       101    811251   82  Echange Linux
/dev/hda2           102      2501  19278000    5  Etendue
/dev/hda5           102       202    811251   83  Linux
/dev/hda6           203       711   4088511   83  Linux
/dev/hda7           712      1220   4088511   83  Linux
/dev/hda8          1221      1729   4088511   83  Linux
/dev/hda9          1730      1856   1020096   83  Linux
/dev/hda10         1857      1919    506016   83  Linux
/dev/hda11         1920      2501   4674883+  83  Linux

[root@arcadia root]# mount -t ext3 /dev/hda8 /usr/src/
mount : le périphérique spécial /dev/hda8 n'existe pas.

[root@arcadia root]# fsck /dev/hda8
fsck 1.32 (09-Nov-2002)
e2fsck 1.32 (09-Nov-2002)
fsck.ext2: No such file or directory while trying to open /dev/hda8
 
The superblock could not be read or does not describe a correct ext2
filesystem.  If the device is valid and it really contains an ext2
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
    e2fsck -b 8193 <device>

[root@arcadia root]# ls /dev/hda*
/dev/hda    /dev/hda11  /dev/hda15  /dev/hda3  /dev/hda6
/dev/hda1   /dev/hda12  /dev/hda16  /dev/hda4  /dev/hda7
/dev/hda10  /dev/hda13  /dev/hda2   /dev/hda5  /dev/hda9

mknod hda8 b 3 8