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Discussion in 'OS X Mountain Lion (10.8)' started by waloshin, Feb 20, 2013.
Does 10.8 really take 9 to 11 hours to re install?
Depends on the source of the installer, and as you probably use Internet Recovery, the installer has to be downloaded, thus the long wait, as using a local installer will take less than 30 minutes for an installation.
If you want to make a bootable installation medium, you can follow these steps:
Create bootable installation medium for OS X 10.8 Mountain Lion
That 9 hours can go from 9 hours to 4 hours to 2 hours to 1 hour to 37 minutes in 30 minutes.
Pretty much what happened to me.
The guestimated time changed to 30 minutes almost immediately following the lengthy time posted.
And also, my installer "progress bar" got all the way to the end, then went *back* a bit and carried on, with the "Time remaining" being reset to *minus* 20 minutes (yes, minus!)
It then completed - in about twenty minutes.
Typical installation time using internetbre overly over a fast BB connection is 40 mins for me....as posted this will depend on your download speed as the OS has to be grabbed from the Internet and Apples servers which also run slowly at times. You can avoid this by creating a bootable ML USB stick which decrease the amount of time as the OS is on the stick.
That's not the installation you've got pictured, that's the download of the installer + all the associated files and stuff. It's many gigs.
After the download is complete the installation is quite quick.