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I have a 16GB Micro SD Card that for some reason only shows 1.1GB. I tried several tips and forums on how to fix my problem but I'm not having much luck. There's a separate partition on it that I tried to remove but it won't let me format it.

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2 Answers 2

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You can use gparted to delete this 1.1 partition and create a new one.

You can install gparted by running:

sudo apt-get install gparted

You can also format the new partition there.

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First make sure sdb is your sd card! (with lsblk)
If you enter the wrong device, you could accidentally overwrite all your data anywhere!

Just zero out the drive.

dd if=/dev/zero of=/dev/sdb bs=4M

Or use any disk utility of your choice. Deleting the two partitions and creating a single new partition will do.

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  • You probably should add bs=4096 or something like that for a better performance of dd by increasing the block size that gets written at once. As it currently stands, you operate on single bytes.
    – Byte Commander ♦
    Nov 25, 2015 at 18:42
  • @ByteCommander Yup. forgot it : )
    – Gayan Weerakutti
    Nov 25, 2015 at 18:44
  • I tried the terminal command that you suggest but all I got was "dd: failed to open ‘/dev/sdb’: Permission denied".
    – Travis Toompas
    Nov 27, 2015 at 23:30
  • Overwriting the contents of an sd card is not at all the same as formatting it.
    – Pointy
    May 10, 2017 at 0:24
  • @Pointy It is not about formatting. you should have read the question before down voting
    – Gayan Weerakutti
    May 18, 2017 at 11:09

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