[SOLVED] how to recover a 16 or 32GB usb stick

BW-userx · 05-22-2023, 10:10 AM

I was burning an iso to a usb stick and got frustrated because dd would not complete the copy and opened gparted then just told it to format it to msdos 16 whatever and ended up with a 8 mb stick but when I plug it in thunar opens three partitions under /run/media/

/run/media/userx/039E-EF17/efi free space 43kib

/run/media/userx/Bodhi Live CD/ freespace 0 bytes (zero)
/run/media/userx/writable/ freespace 27.0 GiB
that last one has a crash log dir

gparted is just showing the used part of like 8MB

Code:

                                 Disk: /dev/sdb
                   Size: 8 MiB, 8388608 bytes, 16384 sectors
          Label: gpt, identifier: 75BC8DE0-5780-4D2E-8257-1ED47E61A861

    Device             Start       End     Sectors     Size Type
>>  /dev/sdb1           2048     14335       12288       6M Linux filesystem

Code:

# fdisk -l /dev/sdb
Disk /dev/sdb: 8 MiB, 8388608 bytes, 16384 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
Disklabel type: gpt
Disk identifier: 75BC8DE0-5780-4D2E-8257-1ED47E61A861

Device     Start   End Sectors Size Type
/dev/sdb1   2048 14335   12288   6M Linux filesystem

I don't know what else to post

enigma9o7 · 05-22-2023, 10:20 AM

gparted has an option under device to "create partition table".

BW-userx · 05-22-2023, 10:26 AM

Quote:

Originally Posted by enigma9o7

gparted has an option under device to "create partition table".

I tried that but it is only giving me a 8mb size and not recovering the amount of the usb stick

BW-userx · 05-22-2023, 10:41 AM

Quote:

Originally Posted by enigma9o7

gparted has an option under device to "create partition table".

Okay I got it back somehow after booting the usb stick into bodhi and it failed to run its install then booted into slack and opened gparted then seen it all so I wiped it then created a new partition table regaining the 32GB

mrmazda · 05-22-2023, 01:39 PM

Quote:

Originally Posted by BW-userx

I was burning an iso to a usb stick and got frustrated because dd would not complete the copy and opened gparted then just told it to format it to msdos 16 whatever and ended up with a 8 mb stick but when I plug it in thunar opens three partitions under /run/media/

When you change partitioning on a USB device, it helps with some tools to run partprobe immediately after completion, but basically it needs to be safely removed then reinserted if you want everything, including kernel, to work right WRT to that device's content.

Save yourself some grief and use ddrescue instead of dd. It provides status by default, so that you know when it actually gets done. Just because dd appears to complete doesn't mean the write process is complete - there can be a considerable amount remaining to be written, leaving you with a corrupted device needing the whole process started from scratch if you attempt to take action with or upon it before writing completes.