Comment # 41 on bug 937237 from Thomas Blume

(In reply to Dr. Werner Fink from comment #40)
> (In reply to Dinar Valeev from comment #39)
> 
> Hmmm ... then something is missed in the namespace/context for starting
> systemd-udevd like a sticky /tmp

The first error I see in the boot log is this:

<7>[   75.875642] systemd[1]: Failed to set up the root directory for shared
mount propagation: Invalid argument

seems to be in context with:

https://github.com/jumpstarter-io/pkgbuilds/blob/master/systemd/0001-Revert-mount-setup-change-system-mount-propagation-t.patch


Maybe there is a problem making the snapshot root shared?