Hi you guys,
Running a windows pc 24/7 is not friendly to electricity bill. So, a friend of mine gave me a Rasberry Pi 2.

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I've read else where that Raspbian can't install Calibre, so I managed to install Ubuntu Mate on a 16GB sdcard.
Running the command line on Calibre mannual
Code:
sudo -v && wget -nv -O- https://download.calibre-ebook.com/linux-installer.sh | sudo sh /dev/stdin
and it says I have an ARM system and it needs x86 instead.
So I moved to the end of the end of the manual page and run
Code:
curl -L https://calibre-ebook.com/dist/src | tar xvJ
cd calibre*
sudo python2 setup.py install
The first two lines were ok. The last did not do anything but a few lines that I can't understand.

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So I read on. And get to type "... install Calibre" in the Terminal. And it calibre was installed.... but the version is 2.55. I want 3.x
Could you please point me where to go from here?