J'essaie de formater une clé USB, mais je suis confronté à l'erreur suivante :
sh-3.2# diskutil unmountDisk force /dev/disk3
Forced unmount of all volumes on disk3 was successful
sh-3.2# diskutil eraseDisk JHFS+ MacOS /dev/disk3
Started erase on disk3
Unmounting disk
Error: -69760: Unable to write to the last block of the device
sh-3.2# lsof | grep disk3
sh-3.2# Quelqu'un pourrait-il m'aider à trouver une solution à ce problème ?
EDIT 2 :
# fdisk -f boothfs /dev/disk3
Disk: /dev/disk3 geometry: 121601/255/63 [1953525168 sectors]
Signature: 0x0
Starting Ending
#: id cyl hd sec - cyl hd sec [ start - size]
------------------------------------------------------------------------
1: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
2: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
3: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
4: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
sh-3.2# fdisk -i -a boothfs /dev/disk3
fdisk: could not open MBR file /usr/standalone/i386/boot0: No such file or directory
-----------------------------------------------------
------ ATTENTION - UPDATING MASTER BOOT RECORD ------
-----------------------------------------------------
Do you wish to write new MBR and partition table? [n] y
sh-3.2#
sh-3.2# diskutil list
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *121.3 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_CoreStorage Macintosh HD 120.5 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
/dev/disk1 (internal, virtual):
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS Macintosh HD +120.1 GB disk1
Logical Volume on disk0s2
7887C476-CBE0-4D10-B95A-5C79F83B20D7
Unencrypted
/dev/disk3 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: *1.0 TB disk3
sh-3.2# EDIT 3 (Dans CentOS 7)
# mkfs.ext4 /dev/sdc
mke2fs 1.42.9 (28-Dec-2013)
/dev/sdc is entire device, not just one partition!
Proceed anyway? (y,n) y
Warning: could not erase sector 2: Attempt to write block to filesystem resulted in short write
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
61054976 inodes, 244190646 blocks
12209532 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=2392850432
7453 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
102400000, 214990848
Allocating group tables: done
Warning: could not read block 0: Attempt to read block from filesystem resulted in short read
Warning: could not erase sector 0: Attempt to write block to filesystem resulted in short write
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: 0/7453
Warning, had trouble writing out superblocks.
