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Created January 23, 2016 04:03
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group_reassignment.md

I got hit by the weird group reassignment when I upgraded to Mavericks. In my case the group was macports (!). I’ve seen one report from a user who got cloakproxy after the 10.11 upgrade, so apparently the bug is still there.

For some reason the OS X upgrader sometimes picks a group and changes the PrimaryGroupID to 20. Here’s the confirm:

dscl . -read Groups/cloakproxy
dscl . -read Groups/staff

And the fix:

sudo dscl . -delete Users/cloakproxy
sudo dscl . -delete Groups/cloakproxy

The next time Cloak is run it will re-create any needed users/groups. (If you're curious: cloakproxy is part of how our OverCloak firewalling feature works with captive portals.)

This OS X updater bug is pretty head-scratching.

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