Chosen Solution
I purchased a Seagate Thin Laptop SSHD (500 GB) to upgrade my factory hard drive. I have formatted it according to all of the instructions I have found (Mac OS Extended Journaled), GUID Partition Table, when it was installed externally. I cloned the original drive using Carbon Copy Cleaner, swapped them so that the new drive is now internal. It is not recognized at boot, so I boot to the original drive (now in USB enclosure) and the Disk Utility does not even list the SSHD. I reformatted and, this time, just installed Yosemite on the SSHD (instead of cloning) with no better luck. No errors when Verifying disk. My original HDD is still recognized internally as well as a different SSD, so I don’t think it’s the SATA cable. I can successfully boot to the new SSHD when it’s in the USB enclosure. Help?
OK, so you have the SSHD prepped now with GUID and a Mac OS Extended Journaled partition. Housing it in the external case with your old HD in the internal HD port. Restart your system this time holding down the Option key so you get to the Boot Manager, now see if your SSHD is showing up if so select it and finish booting up. Did it work correctly? Here’s an Apple TN on the different start up key options: Startup key combinations for Intel-based Macs.
OK, I finally received my new cable and the SSHD is now recognized internally. But now there is a different issue: I re-formatted the SSHD, then installed Yosemite on it, then allowed Migration Assistant to move the data from the old drive (still connected externally) to the new one. Everything works great, but when I check Disk Utility, it says my logical volume group has 18 MB of free space, while the only partition I have shows 185 GB of free space. What is occupying the other free space outside of the partition? Maybe it will help to show my System Information for storage: ’’’ Available: 185.27 GB (185,274,470,400 bytes) Capacity: 498.88 GB (498,876,809,216 bytes)’’’ Mount Point: / File System: Journaled HFS+ Writable: Yes Ignore Ownership: No BSD Name: disk1 Volume UUID: BF5822F5-EE3D-35F0-9FC8-8F142226F03F Logical Volume: Revertible: Yes (no decryption required) Encrypted: No LV UUID: 90711BBE-49DA-4FBF-AAE7-DAE6A49B3072 Logical Volume Group: Name: Mac SSHD 500 ’’’ Size: 499.25 GB (499,248,103,424 bytes) Free Space: 19 MB (18,972,672 bytes)’’’ LVG UUID: E7D9F78D-D432-47D5-86CD-8407717EFB56 Physical Volumes: disk0s2: Media Name: ST500LM000-1EJ162 Media Size: 499.25 GB (499,248,103,424 bytes) Medium Type: Rotational Protocol: SATA Internal: Yes Partition Map Type: GPT (GUID Partition Table) Status: Online S.M.A.R.T. Status: Verified PV UUID: 22AE0D96-59CC-4D7D-AE5A-9FD3C0B70CE2
I’m having the same deal. What cable did you buy?
