The first thing you probably did, like everyone else, was grab some cloning software. Disk Utility, Carbon Copy Cloner, SuperDuper! – they all promise the moon. And sometimes they deliver! But sometimes… they don’t. Which brings us to the head-scratching question: *why?*
Well, there are a bunch of possibilities, honestly. Maybe the clone itself wasn’t perfect. I mean, these softwares are good, but sometimes a bit gets missed or corrupted along the way. Or maybe the new drive isn’t being recognized properly by the Mac Pro’s startup sequence. This *especially* happens with external drives, I find. You hold down the Option key at startup, expecting to see your new drive listed, but nada. Just the old “Macintosh HD” mocking you. It’s like the computer’s just ignoring it, like a teenager pretending not to hear you asking them to do the dishes. Rude!
I’ve also heard whispers of problems popping up if you’re trying to boot from an external drive running an older OS, like Mavericks. Why this should be a problem, I have no clue, but tech is weird that way.
And then there’s the dreaded “hardware issue.” Maybe, just *maybe*, the new SSD itself is a dud. It happens, especially if you bought it from some dodgy back-alley computer store (don’t do that!). Or maybe there’s something funky going on with your Mac Pro’s hard drive controller or some other internal component. Yikes!
Speaking of SSDs…sometimes those pesky little guys just don’t play nice. I read somewhere that if usual fixes to revive a non-booting Mac SSD don’t work, there might be an issue with your Mac’s hard drive or the SSD, and you’ll have to turn to a professional for help. So, keep that in mind.
Another thing, and this might sound super basic, but it’s worth checking: is the new drive actually formatted correctly for macOS? If it’s formatted for Windows or something, it ain’t gonna boot, period. Ask me how I know… (long story involving a late night and a lot of swearing).
Now, I’m no expert, okay? Just a fellow sufferer. But here’s my totally unscientific, seat-of-the-pants advice:
1. Double-check the clone: Try running the cloning software again. Maybe it just glitched the first time.
2. Try a different cloning method: If SuperDuper! failed, give Carbon Copy Cloner a shot. Each program has its own way of doing things, and maybe one will work where the other didn’t.
3. Look into Clonezilla: I saw someone mentioning Clonezilla Live on a USB. Haven’t used it myself, but might be worth looking into.
4. Check your startup disk settings: Go into System Preferences (if you can boot into your old drive) and make sure the new drive is selected as the startup disk. Obvious, I know, but sometimes we miss the obvious.
5. If all else fails, consider a clean install: This is the nuclear option, but sometimes it’s the only way to go. Back up all your important data (you are backing up your data, right? RIGHT?!) and then wipe the new drive and install macOS from scratch. It’s a pain, but it’ll give you a fresh start.
And finally, if you’re really stuck, and I mean *really* stuck, it might be time to call in the professionals. A Mac repair shop might be able to diagnose the problem and get you back up and running. Yeah, it’ll cost you, but sometimes your sanity is worth more than a few bucks.