Every Linux operating system uses the same kernel and so it is natural to look a bit like it. Of course, there are also functions (applications) that distinguish them. For example, packet managers differ between large distributions, as well as the way each distribution is installed.
We should mention that although most distributions Linux today is easy to install, there are some who find it difficult, maybe because they are waiting to open their computer and it will work...
Below we will see some distributions that their installation is very difficult. The following distributions do not do for everyone, or rather to say it better: if you do not have time to spend it better, do not worry. 
What makes a facility difficult?
In general, the fewer options a distribution has, the harder it is to install. Below we will see a list, in which we will not mention Debian or Arch. Yes I have heard that Debian is difficult to install because the drivers are not installed automatically…
Why install one of the following distributions?
Personally, for me it was the challenge, the curiosity and the research and of course the search new knowledge.
Slackware
Το παλαιότερο λειτουργικό σύστημα Linux, είναι το Slackware, και είναι λίγο δύσκολο να εγκατασταθεί, αν και παρέχει πολύ καλή τεκμηρίωση στον δίσκο εγκατάστασης, εγκαθιστά ένα root system μόνο του και δεν απαιτεί καν σύνδεση στο Internet.
Like Debian (and unlike simpler Linux operating systems like Mint), during the procedureDuring installation, you are given the option to select groups of software packages that you want to have by default, but also to exclude other packages that you do not need.
The result is that you may need to know what each pack is doing and why it is needed.
Ένα άλλο χαρακτηριστικό που κάνει το Slackware λίγο πιο δύσκολο είναι ότι θα πρέπει δημιουργήσετε χώρο στον δίσκο σας με ένα μη αυτόματο τρόπο χρησιμοποιώντας το εργαλείο linefdisk or cfdisk commands.
However, you are given many basic command-line tools to configure Slackware since it does not use a GUI as it does Debian.
Did you have a hard time? Compared to the following Linux operating systems, installing Slackware is a "toy."
NuTyX
The NuTyX Linux operating system is designed for users who want flexibility and power. This in itself should bang you if you are interested in easier distribution.
Unlike Arch, which from a point on the installation has a rudimentary graphical environment, you need to install it with a command line tool, first to separate your hard drive, and then to install.
Finishing with the NuTyX installation process you will have a very basic system to build it from scratch. Unlike Slackware, however, you will need to install all the other programs you need from the command line.
Gentoo
Of course, Linux distribution known for its difficult installation could not be missing from the list.
Like NuTyX, you need to know a lot about your system and Linux in general, along with the right tools you can use for the settings. In short, there is no installer and everything is done from the command line or terminal.
With the gentoo linux η επιλογή είναι δική σας. Θα φτιάξετε ακριβώς το σύστημα που θέλετε, χωρίς να το φτιάξετε στην πραγματικότητα από το μηδέν. Αυτός είναι και ένας από τους λόγους που το Chrome os της Google βασίζεται στο Gentoo.
It should be mentioned that Gentoo's documentation is excellent, for whenever you come across it problem. The wikis provided by the distribution are very detailed, and the sheer amount of information they contain makes them difficult to read.
But it is so, because in the distribution there are not many functions that are given in other Linux operating systems. Need multiple wiki pages for Gentoo manual options. For example, you can create your own kernel….
Linux From Scratch (LFS)
Linux From Scratch (LFS) is not an operating system in itself. It provides those who use it with a way to build their own operating system. We can call it more of a "design" used to build the base.
So the Linux From Scratch (LFS) project gives the reader every step to make his own operating system.
The end result is the same (?)
Visually at least. Do you prefer security, or watching movies and writing on Facebook? If you want the second one, read all the above στε you are in the wrong post.
It's important to note that regardless of the Linux operating system you choose to install, what matters is finding what suits you. Sure, there are benefits and disadvantages in distribution comparisons, but we always talk about Linux.
Choose what suits you best. Do you want to learn and experiment or want something more automated?
Anyway, everything is Linux.
