[9to5mac.com]

The developer of popular Mac utility Carbon Copy Cloner says that either macOS 10.15.5 has a bug that prevents the creation of bootable backups, or Apple has made a ‘reprehensible’ security decision …

Mike Bombich described the problem in a blog post.

The technical details of the bug are laid out below, but the short version is that we’re no longer able to use our own file copier to establish an initial bootable backup of a macOS Catalina System volume.

apple.... stop it!

It's TimeMachine or nothing, kids!

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rj
AKA
Vreemac, Moth of the Future

Is there a workaround? Is CCC still useful?

there is a workaround - follow the link

So only APFS volumes?
(sorry if I missed it in the links I followed.)

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We have a workaround and we've released a new beta (it's in beta while we wait for translations). To be clear, you can update all backups created in 10.15.4 and below and they will remain bootable, even if you upgrade to 10.15.5. If you use the beta of CCC, you can create a brand-new bootable 10.15.5 with it.

Mike lays it all out here: [bombich.com]

Quote
rjmacs
It's TimeMachine or nothing, kids!

Time machine doesn't create bootable backups either.

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C(-)ris
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

.....bombs......away.....???

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_____________________________________

I reject your reality and substitute my own!

Quote
FormerlySaleenl
We have a workaround and we've released a new beta (it's in beta while we wait for translations). To be clear, you can update all backups created in 10.15.4 and below and they will remain bootable, even if you upgrade to 10.15.5. If you use the beta of CCC, you can create a brand-new bootable 10.15.5 with it.

Mike lays it all out here: [bombich.com]

It is awesome that you still come here and offer help in these threads!


I’m guessing that SuperDuper! is also seeing this issue, will check it out later and report.

I'm still on 10.15.2 with no problems and no thought of updating in the near future. Several developers of software I depend on have all posted having problems after Apple's updates for Catalina. And CCC works perfectly for me at 10.5.2.

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JoeM

Quote
C(-)ris

Quote
rjmacs
It's TimeMachine or nothing, kids!

Time machine doesn't create bootable backups either.

Are you sure about that?

Because I think I've heard otherwise.

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rj
AKA
Vreemac, Moth of the Future

Quote
hal
Mike Bombich (CCC creator) says that 10.15.5 breaks their ability to create bootable backups

Not quite, hal.

I think Mike said that they can't continue to use their existing method but they have found a workaround. Also, only new bootable backups are affected.

Can you fix your headline?

It is awesome that you still come here and offer help in these threads!

What he said!

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