Introduction to My Home Server Migration
I recently decided to ditch Ubuntu for Fedora on my home server, and as expected, some things didn’t quite work out of the box. In this article, I’ll walk you through the issues I encountered and how I managed to fix them. My home server is a pretty straightforward setup, with a few services like SSH, HTTP, and NFS, so I thought the transition would be relatively smooth. But, as it often does, reality had other plans.
Pre-Migration Preparation
Before making the switch, I made sure to back up all my important data using rsync and btrfs snapshots. I also took note of the services I had running on Ubuntu, including their configurations and any custom scripts. This preparation paid off, as it made it easier to identify and fix issues after the migration. Don’t bother with trying to wing it - taking the time to prepare will save you a lot of headaches in the long run.
Installation and Initial Configuration
I installed Fedora 36 on my home server, using the default partitioning scheme and selecting the “Server” installation type. After the installation, I configured the network settings, including the hostname, IP address, and DNS servers. I also enabled and started the sshd service, so I could access my server remotely. The real trick is to get the basics right from the start, so take your time and make sure everything is set up correctly.
What Broke: Services and Configurations
One of the first things I noticed was that my NFS server wasn’t working. It turned out that the NFS configuration files had changed location, from /etc/exports on Ubuntu to /etc/exports.d/ on Fedora. I updated the configuration files and restarted the nfs-server service, and NFS was working again. I’ve seen this go wrong when people don’t take the time to review the configuration files, so make sure you double-check everything.
Another issue I encountered was with my HTTP server, which was configured to use a custom SSL certificate. The certificate files were still in the same location, but the httpd service was looking for them in a different directory. I updated the httpd configuration file to point to the correct location, and the HTTP server was working again. This is where people usually get burned - assuming that everything will just work because it did on the previous system.
What Broke: Scripts and Dependencies
Some of my custom scripts, which relied on specific packages and dependencies, stopped working after the migration. For example, a script that used python3 and pip to install dependencies no longer worked, because the python3 package was not installed by default on Fedora. I installed the required packages and updated the script to use the correct package names, and it was working again. In practice, this means you’ll need to review your scripts and make sure they’re compatible with the new system.
Troubleshooting and Debugging
When troubleshooting issues, I used a combination of systemctl commands, like systemctl status and systemctl journal, to identify and debug problems. I also used journalctl to view system logs and strace to debug script issues. I usually start with systemctl status to see if there are any obvious issues, and then dive deeper from there.
Security Considerations
During the migration, I made sure to review and update my security settings, including firewall rules and SSH configurations. I also updated my sshd configuration to use the latest secure protocols and ciphers. For more information on securing your Linux system, you can visit the systemd.io website, which provides a wealth of information on system configuration and security.
Final Thoughts
Migrating from Ubuntu to Fedora on my home server was a bit of a bumpy ride, but I learned a lot along the way. By taking the time to prepare, troubleshoot, and debug issues, I was able to get my server up and running again. If you’re considering a similar migration, I recommend taking a similar approach, and don’t hesitate to seek help from the Linux community if you encounter any issues.