So, look at the general server logs. Try and start the qemu command from the command line, enable verbose logging, increase logging etc etc. "cannot create PID file: Failed to write pid file" Disk full? -----Original Message----- From: muke101 [mailto:muke101@xxxxxxxxxxxxxx] Sent: dinsdag 6 oktober 2020 21:14 To: libvirt-users@xxxxxxxxxx Subject: Unable to start or create any vm's on the qemu/kvm network Hi, for some reason my libvirt install has suddenly stopped working with any vm's on the qemu/kvm network, and I can't seem to figure out how to fix it or even anything that indicates what's causing the problem. I've posted my problem to discord servers, subreddits, irc's and the server fault stackexchange to no avail, so I'm hoping that if I share my stackexchnage post here someone might be able to take a look and figure out the problem? Here's the post with more details: https://serverfault.com/questions/1036370/error-when-starting-vm-on-the-qemu-kvm-network-failed-to-write-pid-file Any help would be appreciated, thanks.