刪除 USB 驅動器上的防寫

我有一個自系統崩潰以來受到防寫的 USB 快閃記憶體驅動器。在dmesg中，設備防寫先關閉，再開啟。

這是dmesg：

sd 2:0:0:0: [sdb] 60566016 512-byte logical blocks: (31.0 GB/28.9 GiB)
sd 2:0:0:0: [sdb] Write Protect is off
sd 2:0:0:0: [sdb] Mode Sense: 2b 00 00 08
sd 2:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
sdb: sdb1 sdb2 sdb3 sdb4
sd 2:0:0:0: [sdb] Write Protect is on
sd 2:0:0:0: [sdb] Mode Sense: 2b 00 80 08
sd 2:0:0:0: [sdb] Attached SCSI removable disk
EXT4-fs (sdb3): INFO: recovery required on readonly filesystem
EXT4-fs (sdb3): write access unavailable, cannot proceed (try mounting with noload)
/dev/sdb4: Can't open blockdev

這是命令的結果hdparm /dev/sdb：

/dev/sdb:
multcount     =  0 (off)
readonly      =  0 (off)
readahead     = 256 (on)
geometry      = 29573/64/32, sectors = 60566016, start = 0

我也在badblocks/deb/sdb 上執行過，它沒有發現壞塊。

我嘗試了該命令hdparm -r0 /dev/sdb，但沒有成功。hdparm 安全命令不再成功，例如：

hdparm --security-mode m --user-master m --security-unlock p /dev/sdb

這個命令說：

SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 00 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

hdparm -I /dev/sdb給出以下結果：

/dev/sdb:

ATA device, with non-removable media
Standards:
   Likely used: 1
Configuration:
   Logical     max current
   cylinders   0   0
   heads       0   0
   sectors/track   0   0
   --
   Logical/Physical Sector size:           512 bytes
   device size with M = 1024*1024:           0 MBytes
   device size with M = 1000*1000:           0 MBytes 
   cache/buffer size  = unknown
Capabilities:
   IORDY not likely
   Cannot perform double-word IO
   R/W multiple sector transfer: not supported
   DMA: not supported
   PIO: pio0 

有沒有辦法關閉防寫，或者我的 USB 快閃記憶體驅動器肯定失去了？

USB 很可能有硬體故障，這種情況經常發生，尤其是使用便宜的 USB 驅動器。

您的問題有一個廣泛的答案：

https ://askubuntu.com/a/1028453/1177212

引用自：https://unix.stackexchange.com/questions/667135