ubuntu-device-flash --install option doesn't work

[Kyle Fazzari]

I'm trying to preload a single snap when generating an Ubuntu Core image using ubuntu-device-flash by using the --install option. The option is accepted, and I see the snap in question being downloaded. The resulting image boots successfully, I see the snap in /snaps, the .mount file in /etc/systemd/system, but the snap is not shown in `snappy list`, nor are any systemd .service files created for the services contained within it.

With this feature broken, the only way to preload snaps is by creating an entire gadget snap and not using the official ones, which certainly isn't ideal.

[Kyle Fazzari (kyrofa)]

I believe this is due to the fact that, as u-d-f uses snappy.InhibitHooks, snappy.Install() doesn't activate the snap in question.