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Nuwan Thisara
Asked: 2016-07-26 15:11:44 +0800 CST

Gparted gives me the following error when I connect SD card - libparted error (read error / unrecognized disk label)

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I am trying to format my SD card with Gparted and cannot get it done because I get the below message. The only way I can get rid of this message is removing the SD card

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/dev/sdc cannot be seen in the terminal

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Output of sudo parted -l is below (I skipped the output for my SSD and HDD)

Error: /dev/sdc: unrecognised disk label
Model: Generic- SD/MMC (scsi)                                        
Disk /dev/sdc: 2022MB
Sector size (logical/physical): 512B/512B
Partition Table: unknown
Disk Flags:

What can I do to fix this?

partitioning

2 Answers

  1. Best Answer

    If the SD card does not contain any valuable data, try to zero it out ( = overwrite the whole card and set all bits to 0) using this command:

    sudo dd if=/dev/zero of=/dev/sdX bs=4M

    Replace /dev/sdX with the actual device name of your SD card as shown in the output of lsblk.

    WARNING:
    The target disk you specify here after of= will get completely overwritten, data rescue will be impossible! Be careful!

    After that you should be able to partition and/or format it again. If it does not work, your SD card is physically damaged and needs to be replaced.

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  2. You can try to rewrite the label with:

    sudo tune2fs -L testing /dev/sdc

    may not work, but if it does, then try to format it again.

    Cheers, Al

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