using non-default dispvms in 4.0

[Joshua Thayer]

Hi, I'm trying to use non-default disposable VMs in Qubes 4.0 and
running in to problems. My dom0 and AppVM templates are up to date with
the testing repos as of today.

My understanding from reading documentation and various mailing list
threads is that in Qubes 4.0 it should be possible to specify a template
to use when using disposable VMs using a syntax like:

    $ qvm-open-in-vm '$dispvm:kitten-dvm' ./cute-kitten.jpg

Assuming a VM named `kitten-dvm` exists on your system, and it has its
`template_for_dispvms` pref set to True via `qvm-prefs`, and the
appropriate policy is set in `/etc/qubes-rpc/policy/qubes.OpenInVM`...
in this case:

    $anyvm '$dispvm:kitten-dvm' allow

However, I consistently get "Request refused" when running the example
`qvm-open-in-vm` command above even when using the target_vmname
`$dispvm:fedora-25-dvm`.

Any help understanding how to use the new-style dispvm specification
would be appreciated!

[Marek Marczykowski-Górecki]

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See journalctl in dom0, you'll find details about the reason for the request
refused.

- --
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
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