How to Upgrade Rocky Linux to 9.4

1. Take snapshot instance before Upgrade Rocky Linux 9

How to : https://docs-epc.gitbook.io/ncs-documents/compute/instance/managing-instance-s/taking-snapshot-s

2.Check OS and Kernel detail

sudo cat /etc/os-release

sudo uname -r

3.Run Command Check Available Updates

sudo yum check-update

4.Run Command Update && Upgrade

sudo yum update -y && sudo yum upgrade -y

5.After update finish, the status will show "Complete!"

6.Reboot

7.Check OS and Kernal detail

sudo cat /etc/os-release

sudo uname -r

8.Check Service on the instance

Roll back steps

In case the service not running properly, We can roll back as step below

1. Create Volume from Snapshot : https://docs-epc.gitbook.io/ncs-documents/storage/block-storage/managing-volume-s/creating-from-a-volume-snapshot

2. Create Instance from Volume : https://docs-epc.gitbook.io/ncs-documents/compute/instance/launching-instance-s/launching-from-a-bootable-volume