virtualbox-4.3 missing mirrors
 

Hi,

I am following this to install virtualbox-4.3 on fedora 20 (64-bit):

However, I received the following message during installation:

Well, how could I get virtualbox installed then?

You downloaded the repo file into the yum repos dir, as it says to in the link you posted, right? You'd get an error like that when it's not found in the repos you have.

It may be simply that that version isn't listed currently. It's been awhile since I've used yum, but I'm pretty sure you can tab complete in it, so type like:
Hit the tab button a few times, see what versions pop-up, install one of them (preferably latest). The version has to currently exist in the repos and it and it may have been updated.

after pressing "tab", I received the following response:

So, I decided to run the following command:

And, VirtualBox.x86_64 0:4.3.6-4.fc20 was installed. However, when I run VirtualBox, I receive the following warning:

Is there any way to correct the sRGB profile?

Glad it works now.

As for the warning, it's just a warning. Later versions of libpng issues more warnings about improper RGB profiles. The issue is in the PNG image it's loading..but you obviously have no idea which one that is as it's compiled already - it's most likely in the virtualbox image, so you can't change it. I wouldn't worry about it, just a color profile issue with a pic/icon.