I've added a single entry to a /etc/fstab:
mount //sambashare /media/sambashare
Running mount -a worked just fine, I could access all the files. However, after a reboot, I'm faced with this error:
etho0 is in forwarding mode
Waiting for vmbr1 to get ready (MAXWAIT is 32 seconds).
Recurring reboots do not help. I'm strongly assuming it's related to this fstab entry, as I hadn't done any other changes.
Best Answer
The behaviour is as designed.
As you've added a network share to your fstab, networking needs to be up before it can be mounted.
You've created a bridge (vmbr1), which can needs time to set up if STP is enabled, usually 30-40 seconds.
Disabling STP might work, but might be a bad idea considering your setup.
Another solutions would be mounting the share manually in /etc/rc.local (or similar) or using autofs.