I've made the mistake of changing the "everyone" permissions for the root of my Mac Mini server's startup drive to "none".
(I believe) this would be fairly easy to fix with the Recovery Partition – except this is a headless server, and I can't locate my Mini-DVI adapter, so I'm monitor-less.
my question is: would it be possible for me to boot my Mini to Target Disk Mode, then connect it to my MacBook, and boot the MacBook from the Mini's recovery partition, to fix the permissions? I'm asking because I don't own the necessary FireWire cable, but I'll buy one if it can fix this issue.
or, possibly, could I repair this using Disk Utility on the MacBook's own drive?