I had decided I was going to update my wife's old 2007-Al iMac with an SSD drive. I got a 500gig drive from Crucial and the adapter to make it the same size as the old harddrive. I hooked it up using a usb case i had and cloned the internal disk using SuperDuper. I was then able to select the SSD as the boot drive and update it from 10.9 to 10.10. It ran great in the USB enclosure so i decided to swap it with the old internal drive.
I followed the ifixit tutorial and was able to open up the iMac and make the swap. The problem was when I finally booted up the computer again, it couldnt find a file system (gray screen with flashing 'question mark' folder). I zapped the PRam and tried various keyboard combos but couldnt get anything to show up. I tried the old internal drive in the USB enclosure but it wouldnt show up either. I then swapped the original internal drive back in and it booted up. It even could boot from the SSD in the USB enclosure again. I used the trimforce command to enable TRIM. I swapped the SSD back into the iMac and still nothing, just flashing question mark folder.
So i'm back to square one with the SSD in a USB enclose acting as the boot drive. What am i missing? What do i need to do to use the SSD as an internal drive?
I followed the ifixit tutorial and was able to open up the iMac and make the swap. The problem was when I finally booted up the computer again, it couldnt find a file system (gray screen with flashing 'question mark' folder). I zapped the PRam and tried various keyboard combos but couldnt get anything to show up. I tried the old internal drive in the USB enclosure but it wouldnt show up either. I then swapped the original internal drive back in and it booted up. It even could boot from the SSD in the USB enclosure again. I used the trimforce command to enable TRIM. I swapped the SSD back into the iMac and still nothing, just flashing question mark folder.
So i'm back to square one with the SSD in a USB enclose acting as the boot drive. What am i missing? What do i need to do to use the SSD as an internal drive?