okay actually i use lubuntu but like same difference.
the other day i upgraded from 24.04 to 26.04— i completely YOLO'd it, by the way, and somehow didn't break anything except a bit of my desktop theming— and look, guys, i tried to get used to these newfangled rust coreutils ("uutils") and sudo, but i just couldn't do it. i hated seeing my password as i entered it when running sudo. i did not like my tools behaving slightly differently than they did before the change. i will say, at least, that the new apt interface is kinda nice.
but yeah i just hate any sort of change when using my computer. so i reverted!
it was kind of annoying trying to find guidance on how to do this? like, i found it after 5 minutes, don't get me wrong. it wasn't that hard. but it's kinda wild to me that canonical didn't provide any guidance on reverting the change with their uutils documentation. but whatever, i found it on stack overflow (my beloved).
here's how to do it
disclaimer: i am not responsible if you break your system in the process of doing this. you can always reinstall idk man
coreutils
it's pretty much just two commands for coreutils:
# remove new uutils
sudo apt-get remove coreutils-from-uutils --allow-remove-essential
# reinstall GNU coreutils
sudo apt install coreutils-from-gnu
i got a conflict error a few times while i was doing this, but i think that was due to uutils being present, so i'm half sure you have to uninstall it first.
after GNU coreutils is installed, i'd verify the versions of tools like cat and ls just to be sure:
ls --version
cat --version
sudo
you don't have to reinstall original sudo i think? like it was already on my system, just renamed to /usr/bin/sudo.ws. in that case, all you have to do is run update-alternatives:
sudo update-alternatives --config sudo
enter the number corresponding to sudo.ws, and that should become the default.
okay that's it. if anyone broke their system following this post it's not my fault. live laugh love and learn