The systemd package from jessie-backports was installed, same problem The whole system has been updated to stretch, the problem persists with the systemd 230-7 package
As discussed in the upstream bug report, I've tested wrapping the mount call with a script that uses strace, it shows that the mount call return value is EBUSY Can anybody suggest how to get more details next time the problem happens? It is reproducible on every 2nd or 3rd boot
