Failed to read virtual machine from disk

yep / virtualOS

macOS Virtual Machine using Virtualization.framework

https://apps.apple.com/us/app/virtualos/id1614659226

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Failed to read virtual machine from disk #12

Closed jeromectm closed 9 months ago

jeromectm commented 2 years ago

I updated to version 1.1 and now get this error; I did not try to change the disk image size (yet). Hope I won't have lost everything in this drive!

yep commented 2 years ago

VM storage location changed from

~/Library/Containers/com.github.yep.ios.virtualOS/Data/virtualOS.bundle in version 1.0 to
~/Library/Containers/com.github.yep.ios.virtualOS/Data/Documents/virtualOS.bundle in version 1.1

as the Documents directory contains less unrelated files (~ is the path to you home/user directory).

The VM (virtualOS.bundle) should be moved to the new location automatically on app start. Maybe it was not moved automatically in your case for some reason? If you move it to the new location manually, it should be found by the app again.

Changing the disk image size only has effect before install and thus should be safe thereafter.

jeromectm commented 2 years ago

I tried again after some time (and after having rebooted) and then it worked fine. Is there some way to resize an existing image (disk utility, command line…)? Is there some possibility to use a sparse disk image? Or maybe with APFS, space allocated to the disk image is not actually used until some data is written? Thanks!

yep commented 9 months ago

I tried again after some time (and after having rebooted) and then it worked fine.

Glad it's working now.

Is there some way to resize an existing image (disk utility, command line…)

None I am aware of. If anybody reading this knows more, please add a comment.

Is there some possibility to use a sparse disk image? Or maybe with APFS, space allocated to the disk image is not actually used until some data is written?

Again, I do not know if this is possible.