I messed up my Time Machine backup in some way. I'm no longer able to mount the sparsebundle file as I get an error stating that there are no mountable filesystems.
I used the hdiutil command to attach the sparsebundle file:
hdiutil attach -nomount -readwrite flattop.sparsebundle
which resulted in the following /dev/ devices:
/dev/disk2 Apple_partition_scheme /dev/disk2s1 Apple_partition_map /dev/disk2s2 Apple_HFSX
Afterwards I ran the fsch_hfs command to check the main volume (/dev/disk2s2):
fsck_hfs -drf /dev/disk2s2
This resulted in a notice that the Time Machine Backups volume is corrupt and needed to be repaired:
Unable to open block device /dev/disk2s2: Permission deniedjournal_replay(/dev/disk2s2) returned 13 ** /dev/rdisk2s2 (NO WRITE) Using cacheBlockSize=32K cacheTotalBlock=32768 cacheSize=1048576K. Executing fsck_hfs (version diskdev_cmds-540.1~34). Non-empty journal: start = 66310144, end = 94912512 Journal need to be replayed but volume is read-only ** Checking Journaled HFS Plus volume. ** Detected a case-sensitive volume. The volume name is Time Machine Backups ** Checking extents overflow file. Unused node is not erased (node = 3568) Unused node is not erased (node = 3574) Unused node is not erased (node = 3575) ** Checking catalog file. ** The volume Time Machine Backups was found corrupt and needs to be repaired. volume type is pure HFS+ primary MDB is at block 0 0x00 alternate MDB is at block 0 0x00 primary VHB is at block 2 0x02 alternate VHB is at block 2865568974 0xaacd1cce sector size = 512 0x200 VolumeObject flags = 0x07 total sectors for volume = 2865568976 0xaacd1cd0 total sectors for embedded volume = 0 0x00
As you can see there is also an error saying "Unable to open block device /dev/disk2s2: Permission deniedjournal_replay(/dev/disk2s2) returned 13".
I thought this might be due to not running the fsck_hfs command as a su, so I tried it with sudo but this had the same result.
My sparsebundle file is on a Synology DS408 NAS and has been running without a problem for about 2 years now :(
Anyone an idea how to take this further?
Kind regards, Niels R.
UPDATE: As I suspected while writing this question I probably have a problem with read/write permissions. I now see the volume appearing in the Disk Utility and when I click on "Verify" I get the following output:
Verifying volume “Time Machine Backups” Checking file systemJournal need to be replayed but volume is read-only Checking Journaled HFS Plus volume. Detected a case-sensitive volume. Checking extents overflow file. Unused node is not erased (node = 3568) Checking catalog file. Keys out of order The volume Time Machine Backups was found corrupt and needs to be repaired. Error: This disk needs to be repaired. Click Repair Disk.
Can I simply chmod the sparsebundle file to set the right permissions?