My external HDD is loaded on my desktop but does not appear in Startup Disks. I have changed the Security Settings on the Mac to see if that would allow it to appear but it does not.
Any help will be appreciated. I have the iMac M3.
[Re-Titled by Moderator]
iMac 24″, macOS 15.3
Dedo wrote:
It’s to have a saved., relatively current, copy of the internal HDD, located on an external HDD, from which to reload, reinstall on a new internal HDD, should it be necessary.
Did you read the link provided by Owl-53?
This link, by the CCC vendor whose software you are using to make your "clone," indicates that booting from an external has become problematic with the most recent versions of MacOS. There are similar warnings by SuperDuper, another "clone" software tool provider. Also, both CCC and SuperDuper warn that if you want to keep the external drive MacOS current, you should not apply MacOS updates to their "clones," you need to erase that entire drive and reclone the entire internal drive again.
In short, the external bootable clone is not useful in the way that it used to be. Having a full and complete backup of your files is important, but the external bootable clone cannot be used anymore to restore the MacOS and all files to the internal. Instead, the process that Apple requires now is to boot into recovery, erase the internal drive, reinstall the MacOS from Recovery, and then migrate files and user accounts from a backup (which can be that external clone). In other words, for file recovery, the external "clone" need not have a current or working bootable MacOS, it just needs to have a complete backup of all user files. The MacOS is reinstalled from the Apple servers in Recovery.
Oh, wow, Steve626, thank you so much for this and the time you spent doing it. I get it! Your response is going to help so many.
My HDD is partitioned into three volumes:
1) OS, Apps
2) All my personal files
3) All the second user’s personal files.
So now, I’ll just create two volumes and
clone them.
Thank you again, I can finally stop spinning my wheels with this.
Dedo wrote:
Oh, wow, Steve626, thank you so much for this and the time you spent doing it. I get it! Your response is going to help so many.
My HDD is partitioned into three volumes:
1) OS, Apps
2) All my personal files
3) All the second user’s personal files.
So now, I’ll just create two volumes and
clone them.
Thank you again, I can finally stop spinning my wheels with this.
How does above correlate ??
" It’s to have a saved., relatively current, copy of the internal HDD, located on an external HDD, from which to reload, reinstall on a new internal HDD, should it be necessary. "
Yes, Owl-53, I have been receiving email notifications from the forums this week.
Thank you @markwmsn 👍 for the confirmation
Must be my bad karma lol
Dedo wrote:
If not, it’s the Seagate!
Go on, I'll bite! 😅
It’s to have a saved., relatively current, copy of the internal HDD, located on an external HDD, from which to reload, reinstall on a new internal HDD, should it be necessary.
Why is my External HDD not showing up on Startup Disk?
