PowerEngineer wrote: ⤴Sat Sep 26, 2020 9:40 pm
Is LMDE basically Debian with a cleaned up DE? No offence to the LMDE developers, but I am not sure what the difference is.
What differentiates Debian and LMDE other than the DE?
Does LMDE still adhere to the FOSS policy of Debian or does it include any proprietary software or binary blobs?
LMDE is basically Debian stable repository + LMDE repository, different default software selection, different default configurations and different themes and appeareance. Besides getting new releases of Cinnamon and Nemo which Debian stable doesn't, you also get new releases of other Linux Mint developed software such as Software Manager, Update Manager, Xed text editor, Pix image viewer and all the rest that make LMDE.
You can browse the LMDE repository contents here:
http://packages.linuxmint.com/list.php?release=Debbie. All software developed by Linux Mint is published under the GPL. The Linux kernel and other OS components of LMDE all come from the Debian package base repository so adhere to Debian's policies.
That said, there are a couple of non-free programs in the the LMDE repository. This is pragmatism: Linux Mint prefer free software and as said publishes all software it develops as free software but Linux Mint user want to be able to easily install Dropbox or Spotify clients thus these are available from the repository though these are non-free. These are not installed by default.
PowerEngineer wrote: ⤴Sat Sep 26, 2020 9:40 pmWhile I know the package manger of LMDE is Debian rather than Ubuntu, is the update manager maintained by Mint or Debian?
I don't understand the question. With "the package manger" do you mean the package base? As said LMDE adds the LMDE repository to the Debian stable repository. Both new software you install and updates for installed packages can come from either repository. Both the Software Manager and Update Manager are developed by Linux Mint.
PowerEngineer wrote: ⤴Sat Sep 26, 2020 9:40 pmMay I just use apt upgrade just like in Debian for updates?
You can. Some package updates will come from the LMDE repository and a few override Debian packages (like base-files to set the OS name and information). So long as you're already paying close attention to what apt upgrade tells you it will do that's fine.
Mind that apt on Linux Mint predates Debian's apt command and integrates all the various APT utilities (apt, apt-get, apt-cache, dpkg, aptitude and so on). Run
apt
on the terminal without argument to see list of everything it can do. You don't need to prefix it with sudo, it invokes that itself when needed.
PowerEngineer wrote: ⤴Sat Sep 26, 2020 9:40 pmCan I upgrade LMDE easily to the next version, or would it require a fresh install?
I should say so for anybody that would be comfortable using Debian in the first place. For an eventual LMDE 5 there will be upgrade instructions for LMDE 4 users, like there was for upgrading from LMDE 3 to LMDE 4:
https://community.linuxmint.com/tutorial/view/2475