Quote:
Originally Posted by dnanian
We're simply trying to set the permissions for the file properly with
Code:
sudo -P -u your-uid chmod 0775 path-to-image
I don't know why it would deny us permission to do so... but that's what the error is saying...
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Figured it out - if Time Machine is backing up to the same volume, then it locks down the permissions on the mount point - can't even "ls /Volumes/Delorean" (yes, I named the drive Delorean). This also explains why it would fail sometimes, but not every time. Ever since Snow Leopard, Time Machine has been backing up every hour - and if it happens to be running when SD starts, it clobbers my SuperDuper backups.
I just verified this by running a SD backup - no problems. Then unmounted Delorean, started a Time Machine backup, and tried SD. Bam - failed.