- #Mac os mountain lion fresh install how to#
- #Mac os mountain lion fresh install install#
- #Mac os mountain lion fresh install upgrade#
- #Mac os mountain lion fresh install pro#
#Mac os mountain lion fresh install install#
![mac os mountain lion fresh install mac os mountain lion fresh install](https://coolestguidesontheplanet.com/wp-content/uploads/2012/07/shared-support-location-disk.jpg)
Hold the Option key done during the early restart process.Boot the dead Mac from the external device.Although you’ll need more space than this because once all your user files are copied onto the external device quite a bit of data will be involved. This could also be installed onto a flashdrive with at least 5.3 GB of free space. Install OS X Mountain Lion onto a blank or spare petition on an external hard disk.You will need to have the 4.x GB Mountain Lion installer on hand for this procedure. Here is hare the steps I took to recover my data and complete the Mountain Lion upgrade: The good news is that even though the Installer and even Apple Technicians or “Geniuses” say the drive is faulty, it is likely to be perfectly okay and ALL of your data is likely perfectly okay. In my case the MacBook Air that was stuffed up by the Mountain Lion installer had no recent backups. Or if you have an up-to-date clone of your drive that can also serve as a restore source. If you have an up-to-date Time Machine backup you should be able to restore your computer from TimeMachine. You should hear the computer beep once as per normal, and then beep a second time and it will reboot again. To do a PRAM reset, restart the computer and immediately hold Cmd + Option + P + R during the boot procedure.Many more people said it didn’t work for them. Some people (a few) reported that doing a PRAM reset resolve their issue.
#Mac os mountain lion fresh install upgrade#
Below is an image of the error as seen in Disk Utility run from the Recovery Partition during a failed upgrade Using Disk Utility will fail with the same error message. Rebooting wil bring up the installer again, and the same error will occur. The installer can not continue at this point.Hard link record has data extents (id = 33147751)Įrror: Disk Utility can’t repair this disk…disk, and restore your backed-up files At some point the installer reports that the drive is faulty, with a message such as:.After reboot the installation continues.Installer runs on existing OS X installation, and then reboots the computer.It suggested recovery as many user files as possible and to then reformat the drive. After the initial installer rebooted the computer to continue the installation process it reported there was an unrecoverable error with the disk drive. I then moved on to upgrading a MacBook Air from Lion to Mountain Lion and it failed miserably, with no apparent way out or around the issue.
![mac os mountain lion fresh install mac os mountain lion fresh install](https://m.media-amazon.com/images/I/41l1MMsFvdL.jpg)
#Mac os mountain lion fresh install pro#
I upgraded a MacBook Pro from Lion to Mountain Lion, and everything went well.
#Mac os mountain lion fresh install how to#
Your hardware is likely fine, and here is how to recover your user data.fire At least that’s the way it appears to me. The truth is the Mountain Lion installer has a bug that crashes the install process and then blames the hardware as faulty.
![mac os mountain lion fresh install mac os mountain lion fresh install](https://i.ebayimg.com/thumbs/images/g/DqMAAOSwmZVhAadP/s-l300.jpg)
Online research-particularly in the Apple support forums-tells me a considerable number of people upgrading to OS X Mountain Lion (10.8) were surprised to learn that, according to the OS X installer, their hard drive was all of a sudden faulty and, according to Apple technicians, in need of replacement.