Hi all
I hope everything is well
So I clone my Hard Drive to make an exact copy, then pop that drive into a different Mac, but the mac I have put the drive in then is really really slow, beech balling all the time and dragging at even the most simple task
Now I know there is a simple Terminal command that will fix this, i.e tell the Mac that the Hard Drive is OK and owned by that machine, but alas I have forgotten it
Anyone know whet it is
Thanks
How did you clone the drive? The best way to clone a macOS boot drive is by using Carbon Copy Cloner (at least until macOS 12.3 where Apple broke the bootable clone functionality). If you are cloning macOS Big Sur or Monterey, then you need to enable the "Legacy Boot" option within CCC to makae a bootable clone (up to macOS 12.3, 12.3.1 broke this). Some people use SuperDuper!, but I always found CCC easier to use (at least years ago).
I'm not aware of any terminal commands to fix things. The closest thing is the "bless" command or the newer "systemsetup" command to select a Startup Disk. Neither of these commands will help with a slow drive and spinning wheels. Running a First Aid scan is the only thing that could possibly help with performance issues if the file system is corrupt, but you should run First Aid using Disk Utility if possible.
Slow drives and spinning wheels are either caused by a hardware issue, file system issue, or a software issue. You should be looking at these things. To look for possible software issues you can run EtreCheck and post the report here using the "Additional Text" icon which looks like a piece of paper. If you give EtreCheck "Full Disk Access" the report will contain more details which may contain more clues.
You can try running the Apple Diagnostics.
You don't even provide any specific details of the problem such as the exact model of the Mac and version of macOS (for both Macs), nor the make & model of the drive and adapters & cables used plus how the drive is being connected. All of this is very important information in order to assist you. You can get the exact model by clicking the Apple menu and selecting "About This Mac".
How did you clone the drive? The best way to clone a macOS boot drive is by using Carbon Copy Cloner (at least until macOS 12.3 where Apple broke the bootable clone functionality). If you are cloning macOS Big Sur or Monterey, then you need to enable the "Legacy Boot" option within CCC to makae a bootable clone (up to macOS 12.3, 12.3.1 broke this). Some people use SuperDuper!, but I always found CCC easier to use (at least years ago).
I'm not aware of any terminal commands to fix things. The closest thing is the "bless" command or the newer "systemsetup" command to select a Startup Disk. Neither of these commands will help with a slow drive and spinning wheels. Running a First Aid scan is the only thing that could possibly help with performance issues if the file system is corrupt, but you should run First Aid using Disk Utility if possible.
Slow drives and spinning wheels are either caused by a hardware issue, file system issue, or a software issue. You should be looking at these things. To look for possible software issues you can run EtreCheck and post the report here using the "Additional Text" icon which looks like a piece of paper. If you give EtreCheck "Full Disk Access" the report will contain more details which may contain more clues.
You can try running the Apple Diagnostics.
You don't even provide any specific details of the problem such as the exact model of the Mac and version of macOS (for both Macs), nor the make & model of the drive and adapters & cables used plus how the drive is being connected. All of this is very important information in order to assist you. You can get the exact model by clicking the Apple menu and selecting "About This Mac".
"a simple Terminal command that will fix this"
That depends on exactly what the problem is. And given there can be many, I doubt there is a single command that will fix your problem specifically.
If that were true, you'd see that command posted her pretty much continuously.
Can you give us a clue about the command? A partial you remember maybe? Just anything to go on to jog people's memories.
Hi thanks for the note
now all I can recall is terminal said that “mac is xxx xxxx xx xx” and should be “xxx x xx xxxx” please run “xxxx x xxx xxxx”
sorry the x’s are the text I can’t recall, yeah not much help I know, but once the command was run the machine was then as it should be nice and fast
ill try and go through my notes see if I can remember
Well, I was hoping for more words than "Mac .... .... " but it is what it is.
Sorry, I know of no such single command to fix such a complex issue, but better minds than mine will maybe know.
Cloned drive makes mac slow
