Debian 9 (VM, qubes OS), "this system can not honour the jailmode flag" error when trying to set --jailmode on any snap including hello

Hello!

I have decided to try out snap on Debian 9 (in a VM, QubesOS user here)

When installing snaps I noticed they all get installed with “note - devmode”

I tried force-installing a snap in --jailmode and got a “this system can not honour the jailmode flag” error.

Tried to install hello snap (which I reckoned is the least demanding one) with --jailmode and still got the “this system can not honour the jailmode flag” error.

Other linux confinement tools like, say, firejail, are working fine for me.

Can’t find a way to produce a more informative error.

Please help :slight_smile: