Tahoe 26.4 added a remounting problem

[Oakwine]

I've been using your app to manually unmount my attached backup disk (with two partitions) whenever I restart my iMac.

The Tahoe 26.4 update has created an issue where unmounted disks are remounted after the iMac wakes from sleep. I don't know if this is a bug or intentional behavior on Apple's part.

I tried using the Block from Auto-Mounting option in MountMate, which helped prevent the above bug, but that also prevented Carbon Copy Cloner from mounting the disk when starting a backup. Am I misunderstanding how that option should work?

[tessarin]

+1

Exactly the same setup with CCC too. Waking from sleep now mounts disks, and this did appear right after the 26.4 update.

[Oakwine]

(I've submitted feedback to Apple as well)

[hexeric]

+1 ejected disks re-appear if 'block auto mount' is not enabled.