I have physically rebooted my server (ubuntu 22.04) yesterday. Now the VMs can no longer access the “shared directories” which I added using Cockpit months ago. They are mounted in the VM using fstab as “folder /mnt/folder virtiofs rw 0 2”. It has been working for many months.
When I do “df -l” in the VM, I get the following message “df: /mnt/folder: connection refused”
Creating a new VM and adding a shared directory gives now the same error.
Server & VM Ubuntu server 22.04
KVM, Cockpit, webmin
UFW is off on both server and VMs
/edit
It looks like a ubuntu virtiofs guest bug, took me a while to find the cause. Looks like I need to downgrade.
virtiofs guest connection refused after upgrade qemu-system-x86:amd64 (1:6.2+dfsg-2ubuntu6.12, 1:6.2+dfsg-2ubuntu6.13)
.bugs.launchpad.net/ubuntu/+source/qemu/+bug/2033957.