Fixing an unmountable drive?
Posted: 13 Sep 2016, 16:44
I'm on Mac OS X 10.9.5. I have an 8TB HD with an exFAT partition that is somehow corrupted. Mac OS's disk utility won't mount the drive, so when I attempt to write the new partition table, it fails. When I start testdisk, all of my drives are listed as read only (RO), which prompts the statement:
"Write access for this media is not available.
TestDisk won't be able to modify it."
How can I (re-)mount my HDs so that testdisk can modify them?
testdisk.log shows:
"Write access for this media is not available.
TestDisk won't be able to modify it."
How can I (re-)mount my HDs so that testdisk can modify them?
Code: Select all
Select a media (use Arrow keys, then press Enter):
Disk /dev/disk0 - 500 GB / 465 GiB (RO)
>Disk /dev/disk2 - 8001 GB / 7452 GiB (RO)
Disk /dev/disk3 - 4000 GB / 3726 GiB (RO)
Disk /dev/rdisk0 - 500 GB / 465 GiB (RO)
Disk /dev/rdisk1 - 499 GB / 464 GiB
Disk /dev/rdisk2 - 8001 GB / 7452 GiB (RO)
Disk /dev/rdisk3 - 4000 GB / 3726 GiB (RO)
Code: Select all
search_part()
Disk /dev/disk2 - 8001 GB / 7452 GiB - 1953506646 sectors (RO)
MS Data 256 1953503999 1953503744
exFAT, blocksize=262144, 8001 GB / 7452 GiB
Results
P MS Data 256 1953503999 1953503744
exFAT, blocksize=262144, 8001 GB / 7452 GiB
gpt_change_part_type
Change partition type:
P MS Data 256 1953503999 1953503744
exFAT, blocksize=262144, 8001 GB / 7452 GiB
Change partition type:
P exFAT 256 1953503999 1953503744
exFAT, blocksize=262144, 8001 GB / 7452 GiB
interface_write()
1 P MS Data 256 1953503999 1953503744