[SOLVED] Network dead after update (8.1.10)

[Noobie]

Hi all!

After updating my Proxmox (pve-manager/8.1.10/4b06efb5db453f29 (running kernel: 6.5.13-5-pve), my network connection no longer works (lights remain dark). Unfortunately, I can no longer access the GUI. I am using a USB LAN adapter from Ugreen.

The USB device seems to be found. Output from lsusb:

Bus 002 Device 002: ID 0b95:1790 ASIX Electronics Corp. AX8819 Gigabit Ethernet

The output of ip a looks like this, where eth0 is DOWN:


When I do and then ifup vmbr0 (after running ifdown vmbr0) I get:


My /etc/network/interfaces looks like this (I haven't changed anything!):



Unfortunately I don't know how to fix this. Do you have an idea?

 

[WindowLock]

What does the command ip link show show you?
It looks like the "iface" routing is wrong after your upgrade.

As I can find online (perhaps a search direction) https://superuser.com/questions/1000570/why-eth0-is-renamed-to-enx78e7d1ea46da-after-upgrade

 

[Iodok]

What is the output of:
ethtool eth0 ?

 

[gfngfn256]

Unfortunately I don't know how to fix this. Do you have an idea?

Your output of ip a above appears to show an eth0 device - do you have another onboard ethernet port - apart from the USB adapter?

If you don't - then it appears that your old USB adapter name enx000.... has been changed to eth0. You'll need to change the /etc/network/interfaces accordingly.

If you do have another onboard ethernet port - then it appears your USB adapter is not currently being picked up by the network management of OS.

 

[Noobie]

Thanks for answering!

This solved my problem:

Your output of ip a above appears to show an eth0 device - do you have another onboard ethernet port - apart from the USB adapter?

If you don't - then it appears that your old USB adapter name enx000.... has been changed to eth0. You'll need to change the /etc/network/interfaces accordingly.

If you do have another onboard ethernet port - then it appears your USB adapter is not currently being picked up by the network management of OS.

Thanks for your help!