The Linux Ship of Theseus
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pick any distro and install it.
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Then, without installing another distro over the top of it, slowly convert it into another distro by replacing package managers, installed packages, and configurations.
System must be usable and fully native to the new distro (all old packages replaced with new ones).
No flatpaks, avoid snaps where physically possible, native packages only.
EDIT: Some clarification on some of the clever tools brought up here:
chroot, dd, debootstrap, and partition editors that allow you to install the new system in an empty container or blanket-overwrite the old system go against the spirit of this challenge.
These are very useful and valid tools under a normal context and I strongly recommend learning them.
You can use them if you prefer, but The ship of Theseus was replaced one board at a time. We are trying to avoid dropping a new ship in the harbor and tugging the old one out.
It may however be a good idea to use them to test out the target system in a safe environment as you perform the migration back in the real root, so you have a reference to go by.
Easy: pick two similar distros, such as Ubuntu and Debian or Manjaro and Arch and go from the base to the derivative.
Medium: Same as easy but go from the derivative to the base.
Hard: Pick two disparate distros like Debian and Artix and go from one to the other.
Nightmare: Make a self-compiled distro your target.
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I once switched from Debian i386 to amd64 in-place. That was MUCH harder than you would expect, I guess somewhere between medium and hard in your list. That server is still running that install btw, so in the end it all worked out.
I had forgotten about doing that myself. I did that on a couple servers once the distros had full 64 bit builds. Does that technically count as an architecture swap in-place as well?
I have seen dozens of systems migrated from Gentoo to CentOS by live swapping the userspace and eventually rebooting into the new kernel. A hair raising experience to be sure.
This is what I was doing with my server. I’ve learned there’s no better feeling than starting from scratch.
Okay i’ll cheat with Guix then
Linux From Scratch rulez!
Migrate from Nix to Linux From Scratch!
Reminds me of a recent post someone converted their system from Debian to OpenBSD via SSH only
Why does that sound familiar.
Did they load an OS into ram to run ssh then rebuild the machine, also some VPS that the provider was dragging their feet on remote hands.
I can’t find it now but basically something like that yeah. VPS provider only gave them SSH on linux so couldn’t run the openbsd installer any normal way either
Hell: from macOS to WSL.
But the rules say the system must be usable.
“Medium: Same as easy but go from the derivative to the base.”
I can’t quite recall, but I think I did exactly that with Ubuntu -> Debian once upon a time. I think Ubuntu was only a year or so old though, so there wasn’t a huge amount of divergence back then. As a bonus anecdote I also attempted a semi-successful build of Gentoo on a PPC Mac around the same time (nothing before or after that has compared in its level of nightmare).
I also attempted a semi-successful build of Gentoo on a PPC Mac around the same time (nothing before or after that has compared in its level of nightmare).
Amen!
I would watch a YouTube series doing this
Reminds me of MattKC, a guy on YouTube who does similar stuff. He ported the .Net framework to win95. very interesting videos, if think this challenge would be exactly his type.
Love him. His lego island port has been a pleasure to watch.
Oh he’s the Lego Island guy, I thought he sounded familiar.
whoever runs the channel will singlehandedly cause a worldwide antidepressant shortage
To add sadism on top of masochism, tell all your friends how you did it in great detail
Is that even possible? I’m already in panic when I remove a package and it’s dependencies with pacman 😅.
Sure I did replaced Thunar with Nemo, but a few things don’t work exactly how it should, like opening the download directory from Firefox (Known issue BTW) even though all mime-types are correctly set !
Even switching from Alternative -> Base distro seems like a really difficult task :/
Possible? Absolutely. Pleasant? Hell, no.
I helped do the easy scenario at large scale in a fortune 50 several years ago after the vendor thought they could get greedy on the support contract renewal. Only required small changes to a few files and packages.
It is quite easy to go slackware -> gentoo from what I remember but minimalist distros might be cheating
New Game+: speedrun it
I am not educated enough about this, but don’t these kind of games unnecesarrily strain all the servers that host the packages for people that really need them for download and most of these people run these servers for free in good will and faith that they will serve meaningful needs with positive impact? I am sorry for spoiling the fun, but I felt like I had to point this out.
As other commenters have said, its about as strenuous as doing two normal installs.
However, if you want to do this challenge but feel guilty about the consumed resources, consider donating to the two distros you are performing this with to cover any additional service costs. In all likelihood it’ll only cost them fractions of pennies, but any reason to donate to FOSS is always appreciated.
How is this any less meaningful than any other use case? Is downloading a distro to play video games ok? To shitpost on social media? To watch clickbait videos on youtube? Why is this in particular a bad use of resources?
No? It’s the same amount of “strain” as doing two full OS installs of the different distros.
You are kind of right. I should have thought about that before commenting.
I “broke” linux mint just by trying to pop KDE on, had to timeshift because it messed up my keyboard layout and a whole bunch of other things with my display.
I don’t know how people do these crazy changes without pain, and have a feeling the answer is simply “there’s pain” 😂
theres pain but its also very satisfying to pull this kind of stuff off. im more of a stable system kind of guy these days.
Reminds me of trying NsCDE… it changed a ton of settings and no other desktop looked right after that. I ended just blowing away my home folder and restoring my files
