Can I make VM A start every time I start VM B?

rustybird · July 24, 2023, 8:18am

Yes, I forgot about that:

rc.local scripts sometimes fail if they depend on qrexec

opened 08:41PM - 16 Aug 22 UTC

T: bug C: core P: default needs diagnosis affects-4.1

### Qubes OS release 4.1 fully patched, example using Fedora 36 template ###… Brief summary In my /rw/config/rc.local script I use qrexec to attach a device and mount it. This sometimes fails because qrexec fails to open a socket because the qrexec agent has not yet started. ### Steps to reproduce Write an rc.local script that uses qrexec in some way. Observe that qubes-misc-post.service sometimes fails with errors relating to qrexec failing to open the agent socket ### Expected behavior rc.local scripts run successfully ### Actual behavior qubes-misc-post.service fails. ### My Fix Add "qubes-qrexec-agent.service" to the "After" list in /usr/lib/systemd/system/qubes-misc-post.service in the Template the AppVM is based on. This works for me but happy to accept feedback and suggestions for a better solution.

As a workaround I always add the line

/etc/qubes-rpc/qubes.WaitForSession

in rc.local before the first qrexec-client-vm command in the script.