[SOLVED] Vmbr0 bridge unknown device type - can't create interfaces, VMs or CTs

jp83

New Member
May 5, 2024
5
1
1
Hi,

I'm having an issue where I cannot add new interfaces to VMs, or even create new VMs, because proxmox lists my vmbr0 bridge type as 'unknown'. This means that I have no devices listed in the 'bridge' option box when creating interfaces or VMs, and therefore they cannot be created.

I can add new interfaces to VMs by editing the .conf file manually and everything works fine, and the bridge itself works fine, but I can't do anything through the GUI because it's listed as unknown. This is also the case with CTs through the GUI.

1714939027333.png

1714939037144.png

I also cannot create any new bridges as I get the following error:

Code:
vlan 'vmbr0.10' - wrong interface type on parent 'vmbr0' ('unknown' != 'eth|bond|bridge|vlan' ) (500)

I've tried rebooting several times and updated all packages to their most recent versions but have had no luck. Does anyone have any idea as to what might be wrong?

Many Thanks!

pveversion -v:
Code:
proxmox-ve: 8.2.0 (running kernel: 6.5.11-8-pve)
pve-manager: 8.2.2 (running version: 8.2.2/9355359cd7afbae4)
proxmox-kernel-helper: 8.1.0
pve-kernel-6.2: 8.0.5
proxmox-kernel-6.8: 6.8.4-2
proxmox-kernel-6.8.4-2-pve-signed: 6.8.4-2
proxmox-kernel-6.5.13-5-pve-signed: 6.5.13-5
proxmox-kernel-6.5: 6.5.13-5
proxmox-kernel-6.5.11-8-pve-signed: 6.5.11-8
proxmox-kernel-6.2.16-20-pve: 6.2.16-20
proxmox-kernel-6.2: 6.2.16-20
proxmox-kernel-6.2.16-15-pve: 6.2.16-15
pve-kernel-6.2.16-3-pve: 6.2.16-3
ceph-fuse: 17.2.7-pve3
corosync: 3.1.7-pve3
criu: 3.17.1-2
glusterfs-client: 10.3-5
ifupdown2: 3.2.0-1+pmx8
ksm-control-daemon: 1.5-1
libjs-extjs: 7.0.0-4
libknet1: 1.28-pve1
libproxmox-acme-perl: 1.5.1
libproxmox-backup-qemu0: 1.4.1
libproxmox-rs-perl: 0.3.3
libpve-access-control: 8.1.4
libpve-apiclient-perl: 3.3.2
libpve-cluster-api-perl: 8.0.6
libpve-cluster-perl: 8.0.6
libpve-common-perl: 8.2.1
libpve-guest-common-perl: 5.1.1
libpve-http-server-perl: 5.1.0
libpve-network-perl: 0.9.8
libpve-rs-perl: 0.8.8
libpve-storage-perl: 8.2.1
libspice-server1: 0.15.1-1
lvm2: 2.03.16-2
lxc-pve: 6.0.0-1
lxcfs: 6.0.0-pve2
novnc-pve: 1.4.0-3
proxmox-backup-client: 3.2.2-1
proxmox-backup-file-restore: 3.2.2-1
proxmox-kernel-helper: 8.1.0
proxmox-mail-forward: 0.2.3
proxmox-mini-journalreader: 1.4.0
proxmox-widget-toolkit: 4.2.3
pve-cluster: 8.0.6
pve-container: 5.0.11
pve-docs: 8.2.2
pve-edk2-firmware: 4.2023.08-4
pve-esxi-import-tools: 0.7.0
pve-firewall: 5.0.6
pve-firmware: 3.11-1
pve-ha-manager: 4.0.4
pve-i18n: 3.2.2
pve-qemu-kvm: 8.1.5-6
pve-xtermjs: 5.3.0-3
qemu-server: 8.2.1
smartmontools: 7.3-pve1
spiceterm: 3.3.0
swtpm: 0.8.0+pve1
vncterm: 1.8.0
zfsutils-linux: 2.2.3-pve2

ip -a:
Code:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host noprefixroute
       valid_lft forever preferred_lft forever
2: enp11s0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 9000 qdisc mq master bond0 state UP group default qlen 1000
    link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
3: enp12s0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 9000 qdisc mq master bond0 state UP group default qlen 1000
    link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff permaddr xx:xx:xx:xx:xx:xx
4: enp2s0f0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
5: enp2s0f1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
6: enp2s0f2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
7: enp2s0f3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
8: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 9000 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
9: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue state UP group default qlen 1000
    link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
    inet6 xxxx::xxxx:xxxx:xxxx:xxxx/64 scope link
       valid_lft forever preferred_lft forever
10: vmbr0.10@vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue state UP group default qlen 1000
    link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
    inet x.x.x.x/24 scope global vmbr0.10
       valid_lft forever preferred_lft forever
    inet6 xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx/64 scope global dynamic mngtmpaddr
       valid_lft 2591833sec preferred_lft 604633sec
    inet6 xxxx::xxxx:xxxx:xxxx:xxx/64 scope link
       valid_lft forever preferred_lft forever
 
/etc/network/interfaces:
Code:
auto lo
iface lo inet loopback

iface enp11s0 inet manual

iface enp12s0 inet manual

iface enp2s0f0 inet manual

iface enp2s0f1 inet manual

iface enp2s0f2 inet manual

iface enp2s0f3 inet manual

auto bond0
iface bond0 inet manual
        bond-slaves enp11s0 enp12s0
        bond-wiimon 100
        bond-mode 802.3ad
        mtu 9000

auto vmbr0
iface vmbr0 iface manual
        bridge-ports bond0
        bridge-stp off
        bridge-fd 0
        bridge-vlan-aware yes
        bridge-vids 1-4094
        mtu 9000

auto vmbr0.10
iface vmbr0.10 inet static
        address x.x.x.x/xx
        gateway x.x.x.x
 
Code:
iface vmbr0 iface manual

this line has a typo, the second "iface" should be "inet"..
 

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