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Jan 25, 2013 at 12:27 comment added Adam As noted, this won't work if you're booted into normal OS X (you can't edit a drive you're using). iMacs have a major hardware defect where the DVD drive often breaks after only a few uses, so ... I couldn't boot from the official DVD. Obviously the Recovery Partition was no good either - but downloading Apple's "USB Recovery Disk creator" app, and booting from that, did the trick -- support.apple.com/downloads/DL1433/en_US/RecoveryDiskAssistant.dmg
Jan 17, 2013 at 19:56 vote accept Jules
Sep 9, 2016 at 16:21
Jul 2, 2012 at 16:35 history answered pmdj CC BY-SA 3.0