Mavericks install fail with rMBP - pef damaged

photogy

macrumors member
Hi,

Just made mistake to upgrade from 10.8.5 to Mavericks on my retina mbp.

After downloading, it restarted and tried to install the upgrade…then after a few seconds displays "OS X upgrade couldn't be started because the disk pef is damaged and can't be repaired"

Think my Mavericks download must have been interrupted.

All working fine before and luckily i backed up with ™ before install.

Should i erase pef and then re-install with ™ external backup?

Resolved - ™ restore…

thanks!
 
Last edited:
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