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I am trying to install Mountain Lion on top of Lion on my startup/main sys hard drive. It says it can't install becuase the drive is not formatted as Mac OS extended with Journaling, use disk utility to turn on journaling or reformat the drive. When I go to Disk Utility, that option is not available, it is greyed out? I don't want to reformat the drive and loose everything? What can I do?
IMAC Intel Core duo, 2 GB RAM, Mac OS X (10.6.6)
Boot into Recovery partition and try re-formatting.
spritzdog wrote:
. . .
When I go to Disk Utility, that option is not available, it is greyed out?
Did you select the partition (indented, under the main line for the drive)?
The sample is on an external, but should be the same on your internal. If not, please either post a screenshot of yours, or note what's different.
I don't want to reformat the drive and loose everything? What can I do?
Does that mean you don't have backups? If not, that's risky. Hard drives fail, things go wrong, people delete things in error.
To enable journaling, make sure you have the volume (Macintosh HD or whatever you've renamed it) highlighted in the left pane in Disk Utility, and not the drive itself.
Mountain Lion Won't Install on hard drive
