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Cloned Hard Drive Will Not Boot

Hi, I have an early 2008 IMac running 10.7.5 that I'm upgrading the hard drive on. I used Carbon Copy Cloner to clone the original 320gb drive to a new

Seagate Barracuda 7200 1 TB 7200RPM SATA 6 Gb/s NCQ 64MB Cache 3.5-Inch Internal Bare Drive ST1000DM003. After successfully creating the clone, I was able to boot from the new drive via a USB enclosure. I used the "command+option+R+P" meathod to select the new drive in the enclosure. Next, I installed the new drive into the IMac, and verified that all cables were securely fastened. Now when I turn on the IMac, I get the flashing grey folder with the question mark. I'm unable to get any of the boot-up commands to work, for example: "command+option+R+P" or holding down "option." I've even tried putting the old drive into the enclosure via USB and the new drive into the IMac with no luck. I still can't access the screen that lets me select the startup disk. The only thing that works is starting the IMac with the original Install CD. With the Install CD, I can see the new drive with Disk Uitlity, but it won't let me select it for startup.


Thanks for your help!


Mark

iMac, Mac OS X (10.7.5), 24" IMac 2.8 early 2008

Posted on Jan 27, 2013 8:56 AM

Reply
11 replies

Jan 27, 2013 9:44 AM in response to Coolio2000

Have a look at > Seagate Technology


I'm pretty sure you need to Jumper that 6 GB/s Hard Drive down to 3 GB/s or even 1.5 GB/s, because your iMac's SATA controller only supports a 1.5 GB/s Hard Drive.


see > Jumper settings for Seagate SATA hard drives.


For conversation: I am able to put 3 GB/s WD Hard Drive's into the Earlier 2006 iMac without jumpering them down to 1.5 GB/s, but I don't think that the newer 6 GB/s WD's will work with out jumpering them down either.

Jan 27, 2013 10:19 AM in response to Coolio2000

Humm... WD would normally put one in with the screw kit, at least they used to.


I would contact Seagate Support first and explain what you are doing and what we think the problem might be.


The other thing that could be causing you grief, is how you set the Partition Mac Scheme? When you were setting up and formatting the New Drive, did you also change the Partition Map Scheme from MS-DOS to GUID Partition Table. The Intel iMac can only boot Internal Drives that are Partitioned GUID Partition Table and Formatted Mac OS Extended (Journaled).


see > Newer Technology® : Formatting your Hard Drive for PPC or Intel based Macs


Message was edited by: den.thed


Looks like your model supports a SATA II Hard Drive.


see > iMac Upgrade Guide - Upgrade Your Intel iMac

Cloned Hard Drive Will Not Boot

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