쓰기 방지 된 USB가 있습니다.
dmesg | tail
[10098.126089] sd 7:0:0:0: [sdb] Write Protect is on
[10098.126098] sd 7:0:0:0: [sdb] Mode Sense: 23 00 80 00
[10098.126779] sd 7:0:0:0: [sdb] No Caching mode page present
[10098.126788] sd 7:0:0:0: [sdb] Assuming drive cache: write through
[10098.131418] sd 7:0:0:0: [sdb] No Caching mode page present
[10098.131425] sd 7:0:0:0: [sdb] Assuming drive cache: write through
[10098.133335] sdb: sdb1
[10098.135509] sd 7:0:0:0: [sdb] No Caching mode page present
[10098.135515] sd 7:0:0:0: [sdb] Assuming drive cache: write through
[10098.135521] sd 7:0:0:0: [sdb] Attached SCSI removable disk
쓰기 방지 기능을 해제하려면 어떻게합니까?
내가 시도한 것
- 하드웨어 스위치가 있는지 확인-아니오
- Windows 및 Linux에서 터미널을 통해 포맷하려고했습니다.
- 시도
fdisk
|chmod
- 우분투 소프트웨어 센터의 여러 도구 로이 문제를 해결하려고했습니다.
- Google을 사용하여이 문제에 대해 약 10,000 건의 토론을 보았지만 해결 된 적이 없습니다.
추가 정보
fsck -n /dev/sdb1
fsck from util-linux 2.19.1
dosfsck 3.0.9, 31 Jan 2010, FAT32, LFN
There are differences between boot sector and its backup.
Differences: (offset:original/backup)
65:01/00
Not automatically fixing this.
Free cluster summary wrong (968250 vs. really 911911)
Auto-correcting.
Leaving file system unchanged.
/dev/sdb1: 50 files, 93653/1005564 clusters
fdisk -l
Device boot. Start End Blocks Id System
/dev/sdb1 32 8060927 4030448 b W95 FAT32
umount /dev/sdb1
mkfs -t vfat /dev/sdb1
mkfs.vfat 3.0.9 (31 Jan 2010)
mkfs.vfat: unable to open /dev/sdb1
sudo mount /dev/sdb1 -v
?
e2fsck
:Bad magic number in super-block while trying to open /dev/sdb1 SuperBlock is not readable.