I have a USB2, 500GB external hard drive that I use for Time Machine backups. In order to test something, I created a new partition in the drive, roughly 30GB in size. Once I was done with my tests, I wanted to delete the partition and merge the free space back to the original, larger partition. When I deleted the small test partition with Disk Utility, I encountered an error. A pop-up indicated that I should try to repair the disk, and that I did. Afterwards, the old partition appears as free space, but when I try to create a new partition on that free space (and it doesn't matter which kind of file system), I hit "apply" and the partition isn't created. When I try to move to a different tab in Disk Utility, it warns me that there are unsaved changes.
This is my
Asafs-MacBook-Pro:~ asafchelouche$ diskutil list /dev/disk0 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *251.0 GB disk0 1: EFI EFI 209.7 MB disk0s1 2: Apple_CoreStorage 250.1 GB disk0s2 3: Apple_Boot Recovery HD 650.0 MB disk0s3 /dev/disk1 #: TYPE NAME SIZE IDENTIFIER 0: Apple_HFS Macintosh HD *249.8 GB disk1 Logical Volume on disk0s2 <intentionally left out> Unencrypted /dev/disk2 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *500.1 GB disk2 1: EFI EFI 209.7 MB disk2s1 2: Apple_CoreStorage 464.7 GB disk2s2 3: Apple_Boot Boot OS X 134.2 MB disk2s3 /dev/disk3 #: TYPE NAME SIZE IDENTIFIER 0: Apple_HFS Asaf's Time Machine... *464.4 GB disk3 Logical Volume on disk2s2 267758BA-8C0B-4710-B626-1909F9126576 Unlocked Encrypted
Note: the free space is right after the currently functioning partition, and it spans all the way to the disk's end.
What should I do in order to create a partition on the hard drive, so I could merge it back into the larger partition?
EDIT: I've followed this post, but to no avail: when trying to execute the following command:
sudo gpt add -b 908317520 -i 4 -s 68390024 -t 48465300-0000-11AA-AA11-00306543ECAC disk2
I get this error message:
gpt add: unable to open device 'disk2': Resource busy. I guess this is the same error that is returned to Disk Utility's GUI when I tried to create a new partition. Any thought on how to "un-busy" the device? (I executed
diskutil umountDisk /dev/disk2 in advance, and the requested partition size is divisible by 8)
This is the output for
sudo gpt -r show /dev/disk2:
start size index contents 0 1 PMBR 1 1 Pri GPT header 2 32 Pri GPT table 34 6 40 409600 1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B 409640 907645736 2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC 908055376 262144 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC 908317520 68390031 976707551 32 Sec GPT table 976707583 1 Sec GPT header