Disk Utility can’t image APFS volumes, and normally returns an error if you try to image a container. Here’s the workaround.
Disk Utility
If something goes wrong with Catalina’s boot Volume Group, it seems there’s no way to repair it, or change the Data volume. Or is there?
Older versions of Catalina can fail to erase the System and Data volumes, but 10.15.6 should be able to, making clean re-installation simpler.
Trying to discover the effective size of a snapshot proves baffling, particularly when the Finder claims it’s almost astronomical.
Updating Big Sur can cause the storage required by the system to double in size. Snapshots appear to be the cause. What’s the solution?
What do you know about the hidden and unmounted EFI partition on all the disks you use with your Mac? It could be very important.
Without addressing shortcomings in tools and maturity of macOS, 10.16 has flawed foundations, and is likely to fall flat.
Is it better to make sparse bundles ‘snug’, sizing them so that they don’t have as much free space? What if you then need to resize them?
They readily grow in size up to their maximum. But getting them to shrink when contents are reduced isn’t as easy.
An efficient means of storage with many uses, but riddled with bugs and shortcomings. Explains how to compact and resize them, and more.
