Upgrading from CentOS 7 to CentOS 8

Home Technology Software Upgrading from CentOS 7 to CentOS 8

I decided to upgrade my install of CentOS 7 last night. It’s old and ready to be put out to pasture. So I found instructions on how to make the process happen. It took a while to work my way through them, and of course I had problems that didn’t match up with the instructions, even though my CentOS install is incredibly vanilla. Eventually I worked through all of the issues, and it looked like everything was running smoothly. I even had the new Cockpit control panel set up.

Then I rebooted.

That’s when it all fell apart. I guess Grub2 didn’t quite configure everything the way it was supposed to be, because all I could get into was the Rescue console. I spent a few hours trying to recover before calling it a late night and going to bed. This morning I opted to try my backup from a few weeks ago that I created with CloudBerry Ultimate to see how well that works. Fortunately, after a few false starts, it worked perfectly and my system has been restored — not that it does me that much good other than knowing the backups worked. I’ll be bringing the system offline and I’ll install CentOS 8.1 from scratch. The whole virtual machine was set up in the first place just to try out NextCloud, so it’s not like I have lost anything particularly important here.

That will all be second priority to resolving the issue with my old Windows Server 2008R2 virtual machines. They need to be decommissioned because support ended January 14th, 2020 and they are in the Danger Zone now.