Proxmox won't let me create a new bridge

[Gamienator]

Hello everyone,

I got a weird issue, I just want to create an empty bridge and then I receive this error:



Which is really weird, thats how my current GUI Settings is looking:



and that is my /etc/network/interfaces:

# network interface settings; autogenerated
# Please do NOT modify this file directly, unless you know what
# you're doing.
#
# If you want to manage parts of the network configuration manually,
# please utilize the 'source' or 'source-directory' directives to do
# so.
# PVE will preserve these directives, but will NOT read its network
# configuration from sourced files, so do not attempt to move any of
# the PVE managed interfaces into external files!

auto lo
iface lo inet loopback

allow-vmbr0 enp3s0
iface enp3s0 inet manual
        ovs_type OVSPort
        ovs_bridge vmbr0

allow-vmbr0 enp4s0
iface enp4s0 inet manual
        ovs_type OVSPort
        ovs_bridge vmbr0

allow-vmbr0 enp5s0
iface enp5s0 inet manual
        ovs_type OVSPort
        ovs_bridge vmbr0

allow-vmbr0 enp6s0
iface enp6s0 inet manual
        ovs_type OVSPort
        ovs_bridge vmbr0

allow-vmbr0 enx00e04c313efc
iface enx00e04c313efc inet manual
        ovs_type OVSPort
        ovs_bridge vmbr0

iface enp2s0 inet manual

iface enp1s0 inet manual

#allow-ovs vmbr0
#iface vmbr0 inet static
#       address 10.0.6.1/21
#       gateway 10.0.7.1
#       ovs_type OVSBridge
#       ovs_ports enp3s0 enp4s0 enp5s0 enp6s0 enx00e04c313efc

auto vmbr0
iface vmbr0 inet static
        address 10.0.6.1/21
        gateway 10.0.7.1
        bridge_ports enp3s0 enp4s0 enp5s0 enp6s0 enx00e04c313efc
        bridge_stp off
        bridge_fd 0

Can anybody tell me why this error is plopping up?

 

[spirit]

you have commented your OVs vmbr0 bridge, to replace it with linux bridge vmbr0, right ?

So, you need to also remove

"
ovs_type OVSPort
ovs_bridge vmbr0
"

from your physical interfaces, and also replace "allow-vmbr0" by "auto"