Help! I came to the office this morning only to note that my Time Machine backups were failing, and the Time Machine disk was offline. It wouldn't mount, so tried fsck, and get the following: Code: $ sudo fsck_hfs -frdy -c 2.8G /dev/disk1s2 journal_replay(/dev/disk1s2) returned 0 ** /dev/rdisk1s2 Using cacheBlockSize=32K cacheTotalBlock=49152 cacheSize=1572864K. Executing fsck_hfs (version diskdev_cmds-540.1~34). ** Checking Journaled HFS Plus volume. The volume name is Time Machine ** Checking extents overflow file. ** Checking catalog file. ** Rebuilding catalog B-tree. BlockFindAll: found 273096 blocks but needed 1075456 Disk full error ** The volume Time Machine could not 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 4883713006 0x123178bee sector size = 512 0x200 VolumeObject flags = 0x07 total sectors for volume = 4883713008 0x123178bf0 total sectors for embedded volume = 0 0x00 Any suggestions? While I do have alternate backup, I really would prefer not to lose all of the history which is on this disk... Spidey!!!