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View Full Version : Can I do a clean install of ML after already installing ML?




jmanley1
Jul 29, 2012, 02:35 AM
I would really like to do a clean install of Mountain Lion if I could. However, on Wednesday, I went ahead and upgraded from Lion to Mountain Lion.

If I perform all of the steps found here: Link (http://osxdaily.com/2012/07/25/how-to-clean-install-os-x-mountain-lion/) will that be a clean install (e.g. wipe out the hard drive and install a fresh ML)?

Thanks



DaDalle
Jul 29, 2012, 05:40 AM
I would really like to do a clean install of Mountain Lion if I could. However, on Wednesday, I went ahead and upgraded from Lion to Mountain Lion.

If I perform all of the steps found here: Link (http://osxdaily.com/2012/07/25/how-to-clean-install-os-x-mountain-lion/) will that be a clean install (e.g. wipe out the hard drive and install a fresh ML)?

Thanks

For me a clean installation worked out well. You might have to download ML again in case it was deleted from your hard drive.

But if you have your Image, everything would work fine.

Alternately you could do it with your recovery partition I guess (hold alt while booting and start from recovery)

robgendreau
Jul 29, 2012, 01:41 PM
If you're willing to run the risk, yes, it could work. Depends on your knowledge of the process and the quality of your backup.

Remember that you are erasing everything you own. So be careful.

SR45
Jul 29, 2012, 05:09 PM
It was nice for the hard work to write the program to do a clean install using a USB thumb drive. I tried it out, after which It only took approx 15/20 minutes total to install Mountain Lion apposed to the Recovery Method that took 40 minutes plus, depending on your cable download speed, not to mention if the Server is being tied up.

Nepse
Jul 29, 2012, 05:23 PM
On my old Macbook that my sister will be using from now. I upgraded from 10.7.4 to 10.8, then rebooted to disk utility, wiped the hard drive and installed ML via internet. Took a good while, but I didnt have a thumb drive on hand.

jmanley1
Jul 29, 2012, 05:40 PM
Thanks for the replies guys. I followed the various instructions I found around the web (including here at MR). I completed my "clean" install of ML after erasing the entire Macintosh HD (but not before saving my photos, music and docs to a back up HD).

Voila! I'm done. Very exciting to have a fresh OS X Mountain Lion running here. Who knows if it will make any discernible difference but in my mind, it's nice to have a clean slate.