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Level 1

6 points

My iMac suddenly can't read the backup hard drive I've been using for Time Machine. I did NOT just upgrade the OS or anything. The external HD is an OWC Mercury Elite All Pro. It's worked fine since I got the iMac 4 years ago.`

My iMac suddenly can't read the backup hard drive I've been using for Time Machine. I tried unplugging the cord that connects the HD to the iMac and plugging it back in, but I still get "The disk you inserted was not readable by this computer" below which are buttons for Initialize, Ignore and Eject. I was using a cord that went from larger square plug to larger square plug. So then I tried one that went from smaller square plug to what I think is USB (thin rectangular plug) of the sort that connects the keyboard and mouse. It's the type that my printers and scanners use to connect to the iMac. I did NOT just upgrade the OS or anything. The external HD is an OWC Mercury Elite All Pro. It's worked fine since I got the iMac 4 years ago. What else can I try before just trying to initialize and

iMac, Mac OS X (10.6.8), HP Deskjet 2540, OWC Mercury Elite

Posted on Nov 30, 2013 3:02 AM

18 replies

AdmrlLocke Author

Level 1

6 points

Dec 3, 2013 12:57 PM in response to Michael Black

Thanks for the information. It looks like I can get the CarbonCloner at the educational price of $30. How did you choose which external harddrives to use for bootable clones?

Well DU finally completed verification last night about 8 PM in the middle of my tutoring a student. If found several errors so I clicked repair and it's been reparing every since. It seems to go through the verification process all over again while repairing, so I'm wonder if maybe it wouldn't save time, if I need to do it again, if I just clicked Repair in the first place?

Can you repair the internal hard drive with its own DU, or do you have to use a different disc? I'm wondering if maybe my internal hard drive couldn't use a verification and repair too?

Aug 4, 2014 9:12 AM in response to Michael Black

I cannot back up my work folder to my "My Book for Mac" external hard drive since loading Mavericks. My Book does appear on my desktop and I can open it, but when I try and drag my work folder to the external hard drive I get a negative sign, unlike the usual add sign.

Any suggestions? Much appreciated.

Char

MichelPM

Level 10

80,980 points

Aug 4, 2014 4:36 PM in response to Printers Choice

This is an old posting that has been solved for the original user who posted.

You'll get much more attention and visibility if you start a brand new discussion posting about your Mac's issues.

Thank You.

My iMac suddenly can't read the backup hard drive I've been using for Time Machine. I did NOT just upgrade the OS or anything. The external HD is an OWC Mercury Elite All Pro. It's worked fine since I got the iMac 4 years ago.`