Tuesday, July 11, 2017

gparted - USB stick shows up as two drives!

I was given a free 1GB USB at an event a few months ago - however, when I plug it in to my Ubuntu laptop, the USB shows up as two drives (/dev/sdb and /dev/sdc). I have checked it isn't just partitions - it isn't, since GParted also shows the USB as two drives.


Is it possible to merge the two drives using fdisk or GParted?


The USB was free, so I really don't care if the thing ends up broken. I just want to experiment and see if it is possible to merge the two drives and have a working 1 GB USB.:)


lsusb output:



Bus 002 Device 006: ID 058f:6387 Alcor Micro Corp. Transcend JetFlash
Flash Drive



Output of 'sudo fdisk -l'



(precise)kida@localhost:~$ sudo fdisk -l


WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util
fdisk doesn't support GPT. Use GNU Parted.


Disk /dev/sda: 320.1 GB, 320072933376 bytes 256 heads, 63
sectors/track, 38761 cylinders, total 625142448 sectors Units =
sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512
bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000


Device Boot Start End Blocks Id System
/dev/sda1 1 625142447 312571223+ ee GPT Partition
1 does not start on physical sector boundary. Note: sector size is
4096 (not 512)


Disk /dev/mapper/vboot: 1090 MB, 1090519040 bytes 255 heads, 63
sectors/track, 16 cylinders, total 266240 sectors Units = sectors of 1
* 4096 = 4096 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk
identifier: 0x00000000


Disk /dev/mapper/vboot doesn't contain a valid partition table Note:
sector size is 4096 (not 512)


Disk /dev/mapper/vroot: 1073 MB, 1073741824 bytes 255 heads, 63
sectors/track, 16 cylinders, total 262144 sectors Units = sectors of 1
* 4096 = 4096 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk
identifier: 0x00000000


Disk /dev/mapper/vroot doesn't contain a valid partition table


Disk /dev/mapper/encstateful: 94.6 GB, 94571528192 bytes 255 heads, 63
sectors/track, 11497 cylinders, total 184710016 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/encstateful doesn't contain a valid partition table


Disk /dev/sdb: 1021 MB, 1021575168 bytes 23 heads, 54 sectors/track,
1606 cylinders, total 1995264 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: 0x56e57c2b


Device Boot Start End Blocks Id System
/dev/sdb1 496 1995263 997384 6 FAT16


Disk /dev/sdc: 7 MB, 7077888 bytes 256 heads, 32 sectors/track, 1
cylinders, total 13824 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


Device Boot Start End Blocks Id System
/dev/sdc1 64 13823 6880 1 FAT12


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