关于将Ubuntu 23.04转换为Ubuntu Server 22.04的可行性咨询

Hey Dave, let's walk through your question clearly since you're juggling two tricky pieces here: switching from Ubuntu 23.04 Desktop to Server, and downgrading to the 22.04 LTS release—plus dealing with that finicky ASUS motherboard of yours.

First off, there's no official, safe way to directly convert Ubuntu 23.04 Desktop to Ubuntu Server 22.04. Here's why:

• Ubuntu doesn't support cross-release downgrades, especially between a short-term support (STS) version like 23.04 (EOL in Jan 2024) and a long-term support (LTS) version like 22.04. The package repositories, dependencies, and system libraries are drastically different—forcing this will almost certainly lead to broken packages, system crashes, or unresolvable dependency conflicts.
• Add in your past struggles with the ASUS EX-H510M-V3 motherboard and 23.04, and the risk of breaking things gets even higher.

That said, there are two possible paths you can explore, one riskier than the other:

Riskier Option: Convert to 23.04 Server first, then attempt a downgrade #

1. Switch from 23.04 Desktop to 23.04 Server
   This part is doable. You can strip out the desktop environment and install the server meta-package with these commands:

   sudo apt remove --purge ubuntu-desktop gnome-shell gdm3
   sudo apt autoremove --purge
   sudo apt install ubuntu-server
   

   This will leave you with a headless 23.04 Server setup.

2. Attempt to downgrade to 22.04 LTS
   This is the unofficial, high-risk step. You'd need to edit your system's repository list to point to 22.04's "jammy" release instead of 23.04's "lunar":

   • Open /etc/apt/sources.list and replace every instance of lunar with jammy
   • Run these commands to update and downgrade packages:

     sudo apt update
     sudo apt dist-upgrade
     

   But be warned: this often fails due to dependency mismatches, and you might end up with a system that's half-broken. Given your motherboard's past issues, this could also introduce new hardware compatibility problems that are hard to fix.

Far Safer Option: Reinstall Ubuntu Server 22.04 #

This is the route I'd strongly recommend, even though it means starting fresh:

• 22.04 is an LTS release, so it's more stable, receives updates for 5 years, and has better long-term hardware support than 23.04. It might actually play nicer with your ASUS EX-H510M-V3 motherboard than 23.04 did, since LTS versions get more rigorous hardware testing.
• Before you start, back up all your important data (your /home folder, config files, any server-related data you might have).
• When creating the install media, double-check your BIOS/UEFI settings—these are likely where you ran into trouble before. Common fixes for ASUS motherboards include:
  • Disabling Secure Boot
  • Setting your boot order to prioritize the USB install drive
  • Ensuring AHCI mode is enabled for storage
• Once installed, Server 22.04 will be headless by default, but if you need remote management, you can install tools like cockpit for a web-based interface, which is far more server-friendly than a full desktop environment.

At the end of the day, the reinstall path is the most reliable way to get a stable Ubuntu Server 22.04 setup without risking a broken system.

备注：内容来源于stack exchange，提问作者Dave H