Released April 2010 / 2.4, 2.53 GHz Core i5 or 2.66, 2.8 GHz Core i7 Processors

574 Questions View all

Can't select new SSD as startup disk

I installed a new SSD hard drive but Mac won't let me start up from it. Entire hard drive was restored on new prior to installation. I did a Mac recovery. All seemed okay until trying To reinstall mountain lion. Please help.

Answered! View the answer I have this problem too

Is this a good question?

Score 1


Tell us how and on what the new drive was formatted.


Add a comment

2 Answers

Chosen Solution

Go to About This Mac under the Apple menu then run System report (or System Profiler in older OS's). Then select Serial ATA and review the Partition Map Type of your SSD drive, it should be: GPT (GUID Partition Table). If not you will need to reformat it using Disk Utility app. and reinstall your OS and other files.

If it is the correct format type did you use the System Preferences Startup Disk and bless the SSD as the startup disk? If your system has two volumes with bootable OS's you must tell the system which one to use.

Was this answer helpful?

Score 2
Add a comment

When you boot into the installer, did you select and partition the drive from Disk Utility?

You need to partition the drive and select a file system that Mac OS can use.

Was this answer helpful?

Score 0
Add a comment

Add your answer

Mark Porro will be eternally grateful.
View Statistics:

Past 24 Hours: 7

Past 7 Days: 41

Past 30 Days: 169

All Time: 9,008