Unable to recognize and use a usb drive that failed on format
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Hello, for a in ussue on user privileges on managing usb drives on ubuntu (another computer from the one I'm using with trisquel) I've failed formatting my usb drive. Now only Disks utility (gdisks) can see It and I can't do anything even from there. Attached a screen from gdisk. Here is the fdisk output:
$ sudo fdisk -l
Disk /dev/sda: 128.0 GB, 128035676160 bytes
255 heads, 63 sectors/track, 15566 cylinders, total 250069680 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: 0x000a916a
Device Boot Start End Blocks Id System
/dev/sda1 2048 250068991 125033472 83 Linux
Disk /dev/mapper/sdb1_crypt: 128.0 GB, 128032178176 bytes
255 heads, 63 sectors/track, 15565 cylinders, total 250062848 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/sdb1_crypt doesn't contain a valid partition table
Disk /dev/mapper/grubcrypt-trisquel: 119.0 GB, 119030153216 bytes
255 heads, 63 sectors/track, 14471 cylinders, total 232480768 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/grubcrypt-trisquel doesn't contain a valid partition table
Disk /dev/mapper/grubcrypt-swap: 9000 MB, 9000976384 bytes
255 heads, 63 sectors/track, 1094 cylinders, total 17580032 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/grubcrypt-swap doesn't contain a valid partition table
| Anhang | Größe |
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| Screenshot from 2016-04-06 20:09:32.png | 244.65 KB |
GNU ddrescue may be your last hope to recover data. Search instructions on the Web.
Assuming your misbehaving usb drive shows up in lsblk as /dev/sdb (as per the screenshot), try doing the following to recover...
WARNING: DOING THIS WILL DESTROY ALL DATA ON YOUR USB DRIVE
Zeroize the entire disk:
# shred -f -v -n 0 -z /dev/sdb
Create partition type and define a partition:
# parted -a optimal /dev/sdb
then within parted...
parted> mklabel msdos
parted> mkpart primary 0% 100%
parted> quit
That will write a standard MBR to the disk and create a primary partition using all of the available space.
Format the new partition as EXT4:
# mkfs.ext4 /dev/sdb1
or...
Format the new partition as FAT32:
# mkfs.vfat /dev/sdb1
or... choose some other filesystem.
shred: /dev/sdb: failed to open for writing: No medium found
This is the output trying to shred.
About gddrescue, I'm not trying to save data on It.. I would like only to be able to format the drive.
I am a translator!
Can you try this?
sudo dd if=/dev/zero of=/dev/sdX bs=1024
wait for it to finish - it may take a looong time.
Then format it FAT32 with gparted.
EDIT: lsblk in terminal will tell you what is your usb stick, usually it is sdb, so if that is the case you will replace sdX in the above command with sdb.
All Flash media has a definite limit to the amount of writes that can be performed on it. Once that limit is reached, it will not function properly. I have an SD card which I believe is in that state, because formatting it is impossible. I wouldn't be surprised if your USB drive has reached the end of its life, too.
All storage devices fail at some point, and it's difficult or even impossible to tell when. That's why backups are important.
@Supertramp83: It could not locate the device so I can't.
@onpon4: the usb device was quite new, all the problems started when I've tried to format on ubuntu and the device was "locked" in a sort of read-only mode.
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