Hard drive not working with raspberry pi 3

  • Hi,

    My external hard drive is not letting me add files to it, in file manager it shows up as ESD-ISO.

    File system at the moment is NTFS have also tried as ext4.

    Any help to rectify the issue greatly appreciated.

    Mark

  • EXT4 should not be a problem as it is basically Linux' default disk format.

    Have you check for disk errors, as that is one thing that might prevent Linux from writing data to your disk.

  • Most likely there was a hybrid-ISO image installed before and the ISO-9660/ECMA-119 Volume Descriptor is still detected.

    To verify this assumption first detect your disk with parted -l, Most likely a /dev/sdX.

    If

    Code
     dd if=/dev/sdX bs=2048 skip=16 count=1|hexdump -C

    is printing .CD001 at the beginning the Volume Descriptor is there.

    Fat Warning: only do the following on an empty disk or with a recent backup!


    Erase the Volume Descriptor with:

    Code
    dd if=/dev/zero of=/dev/sdX bs=2048 seek=16 count=1
  • Further to mglae suggestion that a hybrid-ISO may have been on the drive at some point, you might wish to read up on the wipefs command. It can be used to list file system signatures on a drive or partition in addition to selectively erasing left over signatures.