VirtualBox problem with kernel headers on Fedora 21

Yesterday i have moved from Ubuntu 14.04 to Fedora 21. I have installed all software needed including VirtualBox (for Windows 7).
When I was trying to start

I have got this error

The solution for that was to install kernel-devel which solved the problem.

How to mount LG Nexus 5 under Fedora 20

I have bought a LG Nexus 5 smartphone, but after plugin in under Fedora (20) there was no response from the OS to mount it automatically. The dmesg | tail command gave me this:

Ok, this is something, now i had to do this:

And add those lines onto that file

OK, almost the last thing was to add to lines into my .bashrc file:

Now i had to restart my Fedora and voila after restart and plugin my Nexus 5 phone i do the nexusmount command from the terminal and it works!

Sources:
http://l33tsource.com/blog/2014/04/19/Mount-Nexus-5-on-Fedora/
http://tacticalvim.wordpress.com/2012/12/08/mounting-nexus-4-via-mtp-in-fedora-17/

This website stores some user agent data. These data are used to provide a more personalized experience and to track your whereabouts around our website in compliance with the European General Data Protection Regulation. If you decide to opt-out of any future tracking, a cookie will be set up in your browser to remember this choice for one year. I Agree, Deny
552