libunrar.so not found

My PPA contains a libunrar package, if you don't feel like messing around with a manual install.

sudo apt-add-repository ppa:bodiltv/ppa
sudo apt-get update
sudo apt-get install calibre

(or just libunrar : sudo apt-get install libunrar)

download calibre

http://sourceforge.net/projects/calibre/files/

select your system :

64 bits : calibre-x.x.xx-x86_64.tar.bz2

32 bits : calibre-x.x.xx-i686.tar.bz2

extract that file and find libunrar.so in the main directory

copy libunrar.so into "/usr/lib" folder

you can grab the libunrar.so file from the latest files here http://sourceforge.net/projects/calibre/files/ , make sure to get the right architecture for your system. i got calibre-0.7.23-x86_64.tar.bz2 myself because i have a 64-bit system.

you can then put that libunrar.so file in /usr/lib and hopefully it should work okay