Vmbr0 device type unknown

Proxmox
2

I found the solution myself: I just had to remove the blank line in the iface block:

iface vmbr0 inet static
        # disable offloading to prevent hangup
        post-up ethtool -K eno1 tso off gso off
        address 10.1.0.1/8
        gateway 10.0.0.1
        bridge-ports eno1
        bridge-stp off
        bridge-fd 0

Since my network config worked for multiple years with the blank line, I think that the config file parser has changed in a past update.

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