Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

The hard drive in my iMac is on its way out. I have an EHD (2TB), can i use this as my main (only) drive?

The hard drive in my iMac is on its way out. I have an EHD (2TB), can i use this as my main (only) drive? ie unmount the 'C' drive and use the external hard drive as 'Macintosh HD'?

iMac (27-inch Late 2009), OS X Mountain Lion (10.8.5)

Posted on Oct 11, 2013 6:20 AM

Reply
Question marked as Best reply

Posted on Oct 11, 2013 9:39 AM

If the EHD was, originally, formatted as an Mac OS extended (journaled) format with GUID partition scheme, then you can designate this drive as the startup drive in OS X preferences panel.

3 replies

The hard drive in my iMac is on its way out. I have an EHD (2TB), can i use this as my main (only) drive?

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.