Using LEAPP to migrate hosts from rhel7 to rhel8 on AZure; after boot, networking fails; cannot get IP using DHCP. Hints to fix?

Question

Am on Azure Cloud; we have numerous rhel7 hosts; RedHat offers a LEAPP migrator script that updates hosts to the next major OS level (e.g. rhel7 to rhel8)

Script ran fine, but rebooted host cannot get IP; no change for MAC addr.

Anyone encountered this before and have any hints of how to troubleshoot? Usual debuging not working. (yet)]

tx.!

Answer 1

Hi H. U.F. Campbell,
Welcome to the Microsoft Q&A Platform! Thank you for asking your question here
regarding the network issue you're experiencing after upgrading from RHEL 7 to RHEL 8 using the LEAPP migrator script.

Please check the pre-requisites while upgrading & refer below document for more details
https://learn.microsoft.com/en-us/troubleshoot/azure/virtual-machines/linux/troubleshoot-red-hat-os-upgrade-issues
https://learn.microsoft.com/en-us/troubleshoot/azure/virtual-machines/linux/leapp-upgrade-process-rhel-7-and-8?tabs=rhel7-rhel8

If you found this information helpful and my inputs, please click an accepting the answer and don't forget to "Upvote" on my post for other community members reference

Answer 2

INTERIM details:

Contacted RHEL support:

turns out the IP and route are not being set, so added manually (ip cmds).

This allows login to host using ssh, but cannot run yum check-update or ssh from host.

Answer 3

Link to adding IP:

https://access.redhat.com/solutions/2626631