1) j'utilise su - je voulais juste faire classique.
2) CORRECTION : fdisk me renvoie :
Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders, total 488397168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xa9d9610c
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 206847 102400 7 HPFS/NTFS/exFAT
/dev/sda2 206848 404506623 202149888 7 HPFS/NTFS/exFAT
/dev/sda3 404506624 467421183 31457280 5 Extended
/dev/sda5 404508672 405532671 512000 83 Linux
/dev/sda6 405534720 467421183 30943232 8e Linux LVM
Disk /dev/mapper/vg_bibiche-lv_swap: 6140 MB, 6140461056 bytes
255 heads, 63 sectors/track, 746 cylinders, total 11993088 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/vg_bibiche-lv_swap doesn't contain a valid partition table
Disk /dev/mapper/vg_bibiche-lv_root: 25.5 GB, 25534922752 bytes
255 heads, 63 sectors/track, 3104 cylinders, total 49872896 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/vg_bibiche-lv_root doesn't contain a valid partition table
Disk /dev/sdb: 750.2 GB, 750153367552 bytes
255 heads, 63 sectors/track, 91200 cylinders, total 1465143296 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00027032
Device Boot Start End Blocks Id System
/dev/sdb1 2048 1465143295 732570624 7 HPFS/NTFS/exFAT