I recently had need to remove ancient backup disk files after discovering their unintended inclusion on my regular Backup Disk. These files somehow became included for backup on the disk when I included another external HD where they are located with the intention of formatting that drive to be used as the backup for the second of my dual boot system. This problem surfaced shortly after removal of the old backups with error message:
"Time Machine Couldn’t complete the backup to “BateStar Backup 04.”
Files can’t be copied onto the backup disk because it appears to be read-only.
You may need to repair or reformat the disk using Dist Utility. If the disk can’t be repaired, you must usa a different disk for backups. Open Time Machine preferences to select a different backup disk."
I have performed both a verify and a repair which shows the disk to be good, without errors.
Am suspecting at this point that there was corrupt data possibly added to the directory or to a disk location being addressed by the directory.
Is there any way to correct this without reformatting the 3T disk?
Alternatively, if reformat is necessary, how would I be able to recover the up to date backups without including whatever the bad data location being included?
Sparkgapper
iMac, OS X Mountain Lion (10.8.5), DualBoot with El Capitan
