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
Create Volume from Snapshot : https://docs-epc.gitbook.io/ncs-documents/storage/block-storage/managing-volume-s/creating-from-a-volume-snapshot
Create Instance from Volume : https://docs-epc.gitbook.io/ncs-documents/compute/instance/launching-instance-s/launching-from-a-bootable-volume
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