Today, the replacement hard disc for my iMac came in. I am now booted from the utility partition of the USB2 drive, and am restoring the backup to the primary drive. After that, I am going to think about running all of the software updates. This will be a prime way to test my theory that this particular backup system will be acceptable as a method to use to test new system updates for a few days before deciding whether or not I really want to commit to that update.
Another possibility for backup -- later on -- could be to get an ethernet/usb2 disk that I can back up to over ethernet from one or maybe even multiple computers, and then yank out and hook up directly to the machine with USB2 if I ever need to restore from the drive. we'll see whether or not I ever do that though. For now, the 200gig drive over USB2 will work.
For what it's worth, the "iSight" based iMacs are very complicated. -- Needlessly so. You must remove the front, then lift out the LCD panel (which is a pretty big and delicate part) before being able to access the cool bits of the motherboard, the hard disc or the optical drive.
6 years ago