macOS Catalina 10.15.6 & SuperDuper 3.3.1 = cloned partition not bootable

[drwhy]

Hi !

Has anyone the same problem ?
I´m trying to clone my macOS Catalina Drive to another internal disk because
I want ton install BigSur Beta but I cannot get a bootable image !!!

Already tried about 6 times.
Cloned partition won't show up in clover.
Have tried several combinations (ExFAt/APFS, APFS/APFS, Extended Journaled/APFS partitions)

I get the same Issue when using CarbonCopyCloner !

Why ?

 

[Going Bald]

Are you using the latest versions of SD and CCC?

 

[drwhy]

SuperDuper 3.3.1 v121 / CCC 5.1.21 (6053)

 

[Going Bald]

SuperDuper 3.3.1 v121 / CCC 5.1.21 (6053)

If your Catalina is APFS, format the drive APFS and run the clone app. Then copy your OC folder to the EFI partition of the clone and try to boot it selected from BIOS.

 

[drwhy]

excuse me ... what's the meaning of "OC" ?

 

[pastrychef]

Hi !

Has anyone the same problem ?
I´m trying to clone my macOS Catalina Drive to another internal disk because
I want ton install BigSur Beta but I cannot get a bootable image !!!

Already tried about 6 times.
Cloned partition won't show up in clover.
Have tried several combinations (ExFAt/APFS, APFS/APFS, Extended Journaled/APFS partitions)

I get the same Issue when using CarbonCopyCloner !

Why ?

Do you have a Time Machine backup? I recently did a Time Machine recovery by booting in to the Recovery partition and made a bootable clone to my secondary NVMe SSD.

The only oddity was that on the clone, I see a new folder alias named AppleInternal. Otherwise, it works fine.

 

[drwhy]

yes sure I have TimeMachine backup too, but this is only second choice for me !
more an more I think this has something to do with my bios settings and the used SATA controller.

in my bios boot options I can only see 3 boot options
(my 2 macOS drives (Catalina & Mojave), and my Windows drive)

 

[drwhy]

SOLVED:

confirmed: it has something to do with my bios settings.
erased an older backup on an other internal drive and stored a new backup to it, works.