Backup Management

[ozbrk]

It seems there is no way to run backup operations on UTM. It would be greate to add a feature for that and a manager for backups.

[LostInCompilation]

You can use the "Share..."-function of every VM to export an .UTM file which you can import again. Or what do you mean by backup feature/backup manager?
A backup manager doesn't make much sense in my opinion. Backups should be managed by specialised 3rd party software or TimeMachine.
With your requirement every program would need their own backup manager, which would be quite a mess.

[ozbrk]

For example I need to create a malware analysis lab. Which means I need to make a backup of the current victim VM to return the original state after messing it up quite a little bit. That's what I meant

[LostInCompilation]

You could use "Run without saving changes" for this I think.

[ideologysec]

I think the idea in question is snapshots. Which is something being worked on, but would need to be implemented with APFS files clones. You can get halfway there by duplicating the UTM bundle in Finder when in a known good state, running it, and then shutting down -> deleting -> recopying in Finder.

Track the pull request for the feature here: #3893

[ozbrk]

Yeah sorry for my terminology on that I completely forgot the true term for it and used somthing different.

[KhaineBOT]

Are there two things here, one is to create snapshots so you can revert to a known good state, and then the other is support to allow backup tools to create a consistent backup of the virtual machine.

For example, Parallels has a feature called SmartGuard which works to ensure that Time Machine backups are consistent. I think it works by taking a snapshot prior to Time Machine running. The is independent of a users ability to manually create a snapshot.

[jkleckner]

I returned to a VM after a year (tax time...) and forgot the lesson that "clone" is not a "backup". It modifies the macaddr and UUID.

I happily spent hours cloning (mistakenly as backup) prior to changes, switching to the clone when a change broke something, and finally had a VM that worked. Except that now Windows wouldn't accept the license any more that I bought for this VM.

Perhaps I could have gone into the config.plist and edited it, but at that moment I just reverted to an original backup from Time Machine and gave up on the effort.

It would be super nice to just have a "backup" operation right beside "clone" that just made a copy without creating a new UUID and macaddr. Yes, it duplicates disk hugely, but during an inner loop of experimentation that is fine. Waiting for snapshots is not required for this common use case.

[zxzzz8]

i just found out about sparsebundles [not sparseimages] and that they are completely TimeMachine compatible,
as they have "Show Package Content" and are also stated as supporting TM as oppose to sparceimages.

so as KhaineBOT mentioned the 2 aspects,
supporting them would at least be a way to completely solves the 2nd issue of supporting backup apps.

so i figured i'd mention this here as a possible future solution.

although all i could find about this is #3478 .
so any news on apple support on this matter after 3 years?