Вот и я думаю, что всё должно работать.
dmesg | grep sda
[ 16.668197] sd 0:0:0:0: [sda] 1953519616 512-byte hardware sectors: (1.00 TB/931 GiB)
[ 16.669057] sd 0:0:0:0: [sda] [b]Test WP failed[/b], assume Write Enabled
[ 16.669064] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 16.670676] sd 0:0:0:0: [sda] Test WP failed, assume Write Enabled
[ 16.670684] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 16.670694] sda:<5>sd 0:0:0:0: Attached scsi generic sg0 type 0
[ 29.114672] sda1 sda2
[ 29.114941] sd 0:0:0:0: [sda] Attached SCSI disk
Что за Test WP только не ясно.
dmesg | grep Western
[ 10.753280] usb 4-3: Manufacturer: Western Digital
blkid | grep sda1
/dev/sda1: LABEL="Book" UUID="7ba8836d-5042-409e-9538-6c91f2719cb0" TYPE="ext3"