[SOLVED] VMs Not Starting after Update / Reboot - QEMU exited with Code 1

[iweinstein]

Hi All,

I was trying to resolve a networking issue on my Proxmox server this AM (network speeds dropping after a few minutes of transfers using Truenas). Eventually, I gave up on the networking issue and simply rebooted the server. Since that reboot, none of my VMs will start.

In Task History, I see the following on the Status Tab:

stopped: start failed: QEMU exited with code 1

On the Output tab, I see the following:

failed to open /proc/sys/net/ipv6/conf/fwln111i0/disable_ipv6 for writing: No such file or directory
kvm: -netdev type=tap,id=net0,ifname=tap111i0,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on: network script /var/lib/qemu-server/pve-bridge failed with status 512
TASK ERROR: start failed: QEMU exited with code 1

I am running Proxmox version 7.2-3 on a Dell T630 Server.

Note - I'm definitely a Proxmox newbie, but I somehow managed to get Proxmox running and doing what I need it to do.

Any help or suggestions would be appreciated.

Thanks!

Ira

 

[iweinstein]

It looks like the problem is solved.

Earlier today, while trying to fix a networking issue, I changed MTU from default. Then, when I rebooted, I had the above QEMU error. Once I set the MTU back to default and rebooted, the VMs started up again.

Thanks anyway !!!