I installed the proposed kernel and the E810 is working as expected.
The interfaces came up and I was able to ping and ssh into the system using the E810 interfaces.
$ uname -a Linux C6520-E810-30 5.4.0-78-generic #87-Ubuntu SMP Fri Jun 18 16:29:09 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux ubuntu@C6520-E810-30:~$ sudo apt-cache policy linux-generic linux-generic: Installed: 5.4.0.78.81 Candidate: 5.4.0.78.81 Version table: *** 5.4.0.78.81 500 500 http://archive.ubuntu.com/ubuntu focal-proposed/main amd64 Packages 100 /var/lib/dpkg/status 5.4.0.77.80 500 500 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages 500 http://archive.ubuntu.com/ubuntu focal-security/main amd64 Packages 5.4.0.26.32 500 500 http://archive.ubuntu.com/ubuntu focal/main amd64 Packages
I installed the proposed kernel and the E810 is working as expected.
The interfaces came up and I was able to ping and ssh into the system using the E810 interfaces.
$ uname -a C6520-E810- 30:~$ sudo apt-cache policy linux-generic archive. ubuntu. com/ubuntu focal-proposed/main amd64 Packages dpkg/status archive. ubuntu. com/ubuntu focal-updates/main amd64 Packages archive. ubuntu. com/ubuntu focal-security/main amd64 Packages archive. ubuntu. com/ubuntu focal/main amd64 Packages
Linux C6520-E810-30 5.4.0-78-generic #87-Ubuntu SMP Fri Jun 18 16:29:09 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
ubuntu@
linux-generic:
Installed: 5.4.0.78.81
Candidate: 5.4.0.78.81
Version table:
*** 5.4.0.78.81 500
500 http://
100 /var/lib/
5.4.0.77.80 500
500 http://
500 http://
5.4.0.26.32 500
500 http://