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Almost totally OT, but since this is fundamentally about QEMU ... ... yesterday I needed to access data in a MySQL database that was shutdown in 2022. At that

Almost totally OT, but since this is fundamentally about QEMU ... ... yesterday I needed to access data in a MySQL database that was shutdown in 2022. At that time, it had been managed by MySQL 5.5.62. On my current Debian system, we are at 10.X (MariaDB). I had a backup of the entire DB folder and tried to get MySQL/MariaDB to read it. Tried a couple of different things. Failure. Then ... grab Ubuntu 14.04 ISO ... type virt-manager in a terminal ... less than 15 minutes later I'm in the MySQL shell running queries on the old DB. Modern VM stuff is just fucking amazing.

kccqzy 2y ago
The Linux kernel's "don't break user space" motto probably means that you don't need a full VM, just a container that has that old version of MySQL and you probably can run it just fine with docker or podman.
- pezezin 2y ago
  I recently tried to run a CentOS 7 container (LXC) on ProxMox 8 and it didn't work because CentOS 7 uses cgroup v1 which is not supported anymore by most recent distros (they are all on cgroups v2). So your container might or might not work.