I've got an external disk with 6 partitions: 4 for linux, one storage in HFS+, and one storage in ext4. I'd like to delete the ext4 storage one and move it's resulting unallocated space into my HFS+ one, but in GParted, I delete the ext4, and it becomes unallocated. But when I try to resize my HFS+, I can't enter a new value for "New size (MiB)", and the up arrow for it's size is disabled. How can I do this?

My partitions:

/dev/sdb1 ext4 /boot 476.84 MiB
/dev/sdb2 linux-swap 1.86 GiB
/dev/sdb3 ext4 / 9.31 GiB
/dev/sdb4 ext4 /home 46.57 GiB
/dev/sdb5 hfs+ SodiumOxide 523.32 GiB (89.81 used, 433.51 unused)
/dev/sdb6 ext4 WiiMC 14.65 GiB (5.36 used, 9.29 unused)

I'd like to delete sdb6 and add it's resulting unallocated space to sdb5 (SodiumOxide)

  • There are multiple reasons on why this would happen. Could you please post you exact partition structure?
    – darnir
    Aug 19, 2012 at 18:16
  • @darnir added partition info.
    – tkbx
    Aug 19, 2012 at 18:24
  • Which partitions are logical? as there are > 4
    – squareborg
    Aug 19, 2012 at 19:15
  • 1
    @shutupsquare With DOS partitions, partitions 1–4 are always primary or extended and partitions ≥5 are always logical. Since there's no extended partition here, I guess this is disk uses the newer GPT format. Aug 19, 2012 at 22:39

1 Answer 1


You can't enlarge it with GParted because it currently does not support HFS+ partition "grow". It only supports HFS+ "shrink". See

Gparted features

or, on your machine:

GParted >> View >> File System Support

  • So with this being my only hard drive of size, I'm stuck with the lost space? Could I change it to ext4 or something, increase it, and convert it back?
    – tkbx
    Aug 20, 2012 at 13:02
  • 1
    Filesystems conversion is generally not possible without data loss, except for filesystems belonging to the same family, e.g. converting ext2 to ext3, ext3 to ext4. I think your best option would be to backup your data on another medium, delete the aforementioned partition and recreate it as per your needs and then restore your data. Aug 20, 2012 at 14:26
  • OK. So I can back it up, delete the HFS+, and make new HFS+ with all unallocated space?
    – tkbx
    Aug 20, 2012 at 14:38
  • Yes. Make sure you have hfsprogs installed. Aug 20, 2012 at 14:50

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