[SOLVED] Unable to update VM's network interface.

[EnhancedC]

I'm running a small 3 node cluster running HA. When attempting to update a VM's network interface e.g. net0, i get this error

root@node-01:~# qm set 104 --net0 model=virtio,bridge=vmbr1,firewall=0
update VM 104: -net0 model=virtio,bridge=vmbr1,firewall=0
unable to apply pending change net0 : Undefined subroutine &PVE::QemuServer::safe_string_ne called at /usr/share/perl5/PVE/QemuServer.pm line 5252.
400 Parameter verification failed.
net0: unable to apply pending change net0 : Undefined subroutine &PVE::QemuServer::safe_string_ne called at /usr/share/perl5/PVE/QemuServer.pm line 5252.

qm set <vmid> [OPTIONS]

this will happen weather the VM is started or not, and when using the Web UI and qm set, the new setting will now just sit as pending

What i have tried.
I have ran apt update && apt full-upgrade. and restarted all 3 nodes.
Enabled the testing Branch, ran apt update && apt full-upgrade. and restarted all 3 nodes.
Tried the change from all 3 nodes, Same result.

root@node-01:~# pveversion -v
proxmox-ve: 8.2.0 (running kernel: 6.8.12-2-pve)
pve-manager: 8.2.7 (running version: 8.2.7/3e0176e6bb2ade3b)
proxmox-kernel-helper: 8.1.0
proxmox-kernel-6.8: 6.8.12-2
proxmox-kernel-6.8.12-2-pve-signed: 6.8.12-2
proxmox-kernel-6.8.12-1-pve-signed: 6.8.12-1
proxmox-kernel-6.8.4-2-pve-signed: 6.8.4-2
ceph: 18.2.4-pve3
ceph-fuse: 18.2.4-pve3
corosync: 3.1.7-pve3
criu: 3.17.1-2
dnsmasq: 2.89-1
frr-pythontools: 8.5.2-1+pve1
glusterfs-client: 10.3-5
ifupdown2: 3.2.0-1+pmx9
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: 0.3.4
libpve-access-control: 8.1.4
libpve-apiclient-perl: 3.3.2
libpve-cluster-api-perl: 8.0.7
libpve-cluster-perl: 8.0.7
libpve-common-perl: 8.2.3
libpve-guest-common-perl: 5.1.4
libpve-http-server-perl: 5.1.2
libpve-network-perl: 0.9.8
libpve-rs-perl: 0.8.10
libpve-storage-perl: 8.2.5
libspice-server1: 0.15.1-1
lvm2: 2.03.16-2
lxc-pve: 6.0.0-1
lxcfs: 6.0.0-pve2
novnc-pve: 1.4.0-4
proxmox-backup-client: 3.2.7-1
proxmox-backup-file-restore: 3.2.7-1
proxmox-firewall: 0.5.0
proxmox-kernel-helper: 8.1.0
proxmox-mail-forward: 0.2.3
proxmox-mini-journalreader: 1.4.0
proxmox-offline-mirror-helper: 0.6.7
proxmox-widget-toolkit: 4.2.3
pve-cluster: 8.0.7
pve-container: 5.2.0
pve-docs: 8.2.3
pve-edk2-firmware: 4.2023.08-4
pve-esxi-import-tools: 0.7.2
pve-firewall: 5.0.7
pve-firmware: 3.13-2
pve-ha-manager: 4.0.5
pve-i18n: 3.2.3
pve-qemu-kvm: 9.0.2-3
pve-xtermjs: 5.3.0-3
qemu-server: 8.2.4
smartmontools: 7.3-pve1
spiceterm: 3.3.0
swtpm: 0.8.0+pve1
vncterm: 1.8.0
zfsutils-linux: 2.2.6-pve1

This is the same across all nodes


EDIT:

I am able to remove and re add the interface as a workaround

 

[cheiss]

Hi,

can you try running apt update && apt reinstall -y qemu-server?

The code referenced by the error looks good, I can also not reproduce it here locally either.
Have you modified any system files? I can also recommend running apt install -y debsums && debsums -c, this essentially checks all installed files by packages for their consistency.

 

[EnhancedC]

can you try running apt update && apt reinstall -y qemu-server?

Huh that worked, i had run apt --reinstall install qemu-server before submitting this in a attempt to do the same thing, which didn't work, are these command different.

Just for reference this is the output is debsums before running apt update && apt reinstall -y qemu-server

root@node-01:~# debsums -c

root@node-01:~# debsums -a -s
debsums: changed file /etc/issue (from base-files package)
debsums: changed file /etc/bash.bashrc (from bash package)
debsums: changed file /etc/lvm/lvm.conf (from lvm2 package)
debsums: changed file /etc/apt/sources.list.d/pve-enterprise.list (from pve-manager package)
debsums: changed file /etc/kernel/postrm.d/zz-systemd-boot (from systemd-boot package)
debsums: changed file /etc/initramfs/post-update.d/systemd-boot (from systemd-boot package)
debsums: changed file /etc/kernel/postinst.d/zz-systemd-boot (from systemd-boot package)

I definitely didn't edit any files in /usr/share/perl5/PVE/ so no idea why this would happen in the first place.

But thanks for the quick response AND fix