Lost my Network After Update

[rkaraca]

Hello, I wanted to update my 3 years old proxmox from 6 to 7, my bad!
I updated my proxmox to latest version, but after l reboot the proxmox server l lost its network connection, I neighter connect proxmox panel via 8006 or any vps are working.
Soo l opened IPMI and l see there is no connection on the network. I cant pıng anywhere.
can any1 help me what should l do after this process? how can l fix my network after now ?
here is my network https://prnt.sc/3tRzwRY3gd0_

 

[UdoB]

Just a quick shot: Run ip a to take a look of the actual situation of your network devices and IP addresses. Note the names of the devices, e. g. eno0, eth0 or enp4s0 etc. Make a backup of the "interfaces"-file by cp /etc/network/interfaces /etc/network/interfaces-possibly-bad. Use the editor of your choice to open /etc/network/interfaces. Compare the network interface names with those from "ip a". Do they fit? If not: correct them.

You read and followed https://pve.proxmox.com/wiki/Upgrade_from_6.x_to_7.0 ?

 

[vesalius]

Sometimes the shift from ifupdown to ifupdown2 can cause issues, quick check below if the interface naming did not change.

https://forum.proxmox.com/threads/upgrade-to-7-no-network-after-reboot.101342/post-437163

 

[rkaraca]

Just a quick shot: Run ip a to take a look of the actual situation of your network devices and IP addresses. Note the names of the devices, e. g. eno0, eth0 or enp4s0 etc. Make a backup of the "interfaces"-file by cp /etc/network/interfaces /etc/network/interfaces-possibly-bad. Use the editor of your choice to open /etc/network/interfaces. Compare the network interface names with those from "ip a". Do they fit? If not: correct them.

You read and followed https://pve.proxmox.com/wiki/Upgrade_from_6.x_to_7.0 ?

Hello mate.
Here are some screenshots of the results.
dmesg | grep eth - https://prnt.sc/IuQZC8xmvszl
ip a - https://prnt.sc/z5N8HgPOSXMg
cat /etc/network/interfaces - https://prnt.sc/fwNzvFKMg0KI
ping 1.1.1.1 - https://prnt.sc/_E7wfdT9pu8P
Please check them and advice me how to fix the networking problems on VPS because I cant activate networks on VPS and my current proxmox networks goes after each 15-20 minutes

 

[rkaraca]

Sometimes the shift from ifupdown to ifupdown2 can cause issues, quick check below if the interface naming did not change.

https://forum.proxmox.com/threads/upgrade-to-7-no-network-after-reboot.101342/post-437163

I checked that forum and l couldn't understand anything honestly.