The Fugue Counterpoint by Hans Fugal

6Aug/100

OSX ignores ownership on external drives by default.

I had reason to copy my harddrive off and back (to reformat as case-sensitive), and I missed one very important detail.

http://www.egg-tech.com/mac_backup/

IMPORTANT STEP: disable "Ignore ownership on this volume".

Yeah, with everything owned by user 99, it won't even boot. You can boot into single-user mode and "chown -R root:wheel /" which will at least let it boot, then you can go into Disk Utility and repair permissions (which will actually do something useful and vital in this situation). Then chown -R your home directory. But it's still a mess to clean up, and you lose all that user and group info.

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