External Drive Support for UTM virtual machines

[JoeCotellese]

So that I have more control over disk usage on my machine,
As a UTM user,
I can run UTM images on external drives.

Acceptance Test - Create Disk Image on External Drive

• Given I have an external drive connected to my machine,
• When I create a new disk image in the UTM application,
• Then I should be able to select the external drive as the storage location,
• And a performance warning should pop up informing me about potential issues with using an external drive.

Acceptance Test - Move Disk Image to External Drive

• Given I have an external drive connected to my machine,
• And I have an existing disk image stored on my internal drive,
• When I move the disk image to the external drive using the UTM application,
• Then the operation should complete successfully,
• And a performance warning should pop up informing me about potential issues with using an external drive.

Acceptance Test - Restrict NAS Drive Usage

• Given I have a NAS drive connected to my network,
• When I try to create or move a disk image to the NAS drive using the UTM application,
• Then the application should not allow the operation,
• And I should receive an error message stating that NAS drives are not supported.

[cw1nte]

Since some copy (move) operations can be very long running it would be good for this to be shown as in progress with a bar or similar UI...