My Time Machine seems to be in some sort of weird state where it has stopped backing up any files/folders in my home (~/) folder or below.
This is obviously a big issue since those are the files most needing to be backed up.
It does catch changes to the /Applications folder, the /Developer folder, and the /usr folder, for some examples.
A typical backup where it misses a lot of changes in my home folder is as follows:
Starting standard backup Backing up to: /Volumes/My Backup Disk/Backups.backupdb No pre-backup thinning needed: 1.22 GB requested (including padding), 253.01 GB available Copied 20 files (157 bytes) from volume . Starting post-backup thinning Deleted backup /Volumes/My Backup Disk/Backups.backupdb/My Computer Name /2009-09-11-185523: 253.01 GB now available Deleted backup /Volumes/My Backup Disk/Backups.backupdb/My Computer Name /2009-09-07-124935: 253.05 GB now available Deleted backup /Volumes/My Backup Disk/Backups.backupdb/My Computer Name /2009-10-03-205432: 253.05 GB now available Deleted backup /Volumes/My Backup Disk/Backups.backupdb/My Computer Name /2009-10-03-205215: 253.05 GB now available Deleted backup /Volumes/My Backup Disk/Backups.backupdb/My Computer Name /2009-10-03-204044: 253.05 GB now available Post-back up thinning complete: 5 expired backups removed Backup completed successfully.
And looking at it in TimeTracker it just shows a lot of 0 byte backups, with the occasional backup with only changes to the above-mentioned folders visible.
How can I reset Time Machine and get it back on track?
I'd like to preserve the current backups on it if possible.