I was trying out new OS on my Macbook, now I started to install elementary on my primary drive and force quit the installation in middle.. which resulted in bad GPT partition.

Now, when I contacted apple support they made me erase the drive, but it did not work, the drive is detected when I boot up my mac with linux OR macOS but as I try to format it, the disk just vanishes.

I tried to perform fsck on ubuntu:

fsck -a /dev/sda1

and this was the output:

fsck from util-linux 2.31.1
fsck.ext2: Bad magic number in super-block while trying to open /dev/sda1
The superblock could not be read or does not describe a valid ext2/ext3/ext4
filesystem.  If the device is valid and it really contains an ext2/ext3/ext4
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
    e2fsck -b 8193 <device>
    e2fsck -b 32768 <device>
  • fdisk -l /dev/sda might be useful too – danblack Sep 5 '18 at 23:17
  • Does this suggestion from Ask Different for completely erasing the internal disk help at all? IMO you should look to a complete erase of the partition table before trying to continue. – roaima Sep 6 '18 at 16:34
  • Yeah.. I tried that, but i cannot erase my disk at all! It unmounts and dissappears – sameer manek Sep 6 '18 at 16:52
parted /dev/sda mklabel gpt
parted /dev/sda mkpart primary 0GB 100%

Then run the installer.

  • The first command gives out a warning : Information: you may need to update /etc/fstab, do i ignore this? – sameer manek Sep 6 '18 at 9:26
  • And sorry, this did not work. When i tried to install the system the drive could not be erased to a ext4 format and vanished.. – sameer manek Sep 6 '18 at 10:03
  • @sameermanek yes ignore the fstab warning, if Linux could not install to that then you likley have a hardware issue. (you are selecting fresh install; erase eveything right) – user1133275 Sep 6 '18 at 14:19

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