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Sometimes we need to set local ip under rescue mode Centos because we need to reinstall kernel. It is basically the same as this article, just this time I create a simple bash script in toort directory. This is only for my note.

nano -w localip.sh

#!/bin/bash

route -n
ip addr add dev enp6s0 192.168.0.22/24
ip route replace default via 192.168.0.1

route -n

One of our server have a boot loop issue and our last option is to change hardware based on recommendation by software vendor.
The issue when changing hardware is the server sometimes cannot boot even using the same hardware specification. We suspect it is something to do with the device UUID because of hardware change.
So to solve the issue we need to boot in rescue environment to repair boot