Corrupted Partition Table from Sonoma?

[smoothbit]

TLDR - I'm having this same problem, has anyone found a fix? How are you even supposed to migrate from Mojave to Sonoma if it corrupts all your data whenever you try?

~~~

I've finally upgraded my MacBook Pro from Mojave to Sonoma but have run into a snag; the external SSD that I use as my home directory mounted just fine the first time I connected it, but now it won't mount at all anymore.

It's a USB drive that's formatted as encrypted APFS and has been working reliably in Mojave for some time now.

Does anyone know of something about Sonoma (or maybe one of the other macOS versions from Catalina onwards) that corrupted partition table data on external USB drives? Or anything like that? And more to the point, does anyone know how to mount such a drive again?

 

[smoothbit]

Also, I tried mounting the drive in Windows using MacDrive 11 and that helpfully told me there was indeed 6.5TB used up, it even showed the volume name, both of which are much more than macOS shows me in Disk Utility. Sadly it apparently can't read encrypted APFS drives 🙃

 

[Bigwaff]

I've finally upgraded my MacBook Pro

MBP year and model is… ?

 

[smoothbit]

MBP year and model is… ?

It's a 15" 2018 MacBook Pro

 

[Bigwaff]

Try Settings > Privacy & Security > Allow accessories and change the settings to connect to "Automatically When Unlocked".

 

[smoothbit]

Try Settings > Privacy & Security > Allow accessories and change the settings to connect to "Automatically When Unlocked".

My MacBook is booted into Mojave and will be running Disk Drill for the next ~15 hours so that I can attempt to recover some project files (my last backup is from January 🥲), I guess that setting is in Sonoma? And do you think that will bring up the prompt to enter the password for the encrypted volume?