What should I have done differently?

I'm on a Mac, running BOINC Mgr 5.10.45. I used tar to dump the contents of /Library/Application Support/BOINC Data, erased the hard drive and reinstalled everything, then used tar to restore the BOINC files.

When I tried running BOINC, I got a message saying that permissions were not set correctly and I needed to reinstall BOINC Mgr. I eventually gave up trying to restore and just started a new work unit, losing about three weeks of progress. Bummer.

Here's the detailed steps of what I did:

1) > cd /Library/Application Support/BOINC Data/
2) > tar cvf ~/boincdata.tar
3) erase hard drive, reinstall MAC OS, reinstall BOINC Mgr
4) > sudo mv /Library/Application Support/BOINC Data /Library/Application Support/BOINC Data-old
5) > sudo mkdir /Library/Application Support/BOINC Data
6) change permissions, owner and group on BOINC Data to match the old one.
7) > cd /Library/Application Support/BOINC Data
8) > sudo tar xvf ~/boincdata.tar


Thanks,

Pat

What was in BOINC Data?
ALL of the BOINC programs and xmls, plus ALL of the sub-folders for the projects (and their sub-folders), plus the 'slots' folders, etc?