Introduction There was a handful that I hadn’t tried myself and so I had to use other people’s words to describe them. Q4OS was one of them and CentOS was another. I can now say that I have tried both of these distributions.
So what is CentOS? According to the CentOS website’s about page
, CentOS is a stable, predictable, manageable and reproducible platform derived from the sources of Red Hat Linux.
If we were talking in terms of Ghostbusters, Fedora Linux would be Venkman and CentOS would be Spengler. Fedora is basically more up to date but can be unpredictable whereas CentOS is more like Debian in that it is stable and trustworthy.
CentOS is basically a community version of Red Hat Linux without the branding. That means it should be good right?
Well, let’s find out.
How To Get CentOS Linux
The download page has 3 big orange buttons with options as follows:
- DVD ISO
- Everything ISO
- Minimal ISO
The DVD is a large download (over 4 gigabytes) which is ok if you have a nice fiberoptic broadband connection but for many people too big.
If the DVD ISO is too big then the Everything ISO is even bigger at 7.1 gigabytes.
The minimal ISO is much smaller but it is like the Ubuntu minimal ISO or the Debian minimal ISO in that it just gives the basic operating system with no GUI.
What we really want is a live DVD and the three big orange buttons don’t provide it.
This link provides a list of download mirrors for CentOS
. Clicking on a mirror will show a list of available ISO files. You should find the following live versions:
- KDE Desktop
- GNOME Desktop
I chose to use the GNOME version because I just so happen to prefer GNOME to KDE.
The tool I used to create a live USB drive was Win32 Disk Imager (Windows) or if you are using Linux you can use the dd command.
The CentOS installer is the same one used by Fedora.
After installing from the live GNOME DVD CentOS boots into the Gnome Classic desktop.
A browser appears with a getting started guide. The best place for information about CentOS, however, is the CentOS Wiki
The desktop has the CentOS 7 wallpaper and two panels (one at the top and bottom).
The panel at the top has the applications and places menus on the left side and system icons on the right side for audio, Bluetooth, network, power and user settings.
Personally, I prefer the actual Gnome desktop to the classic one. If you feel the same way then switch to the Gnome desktop. Log out by clicking on your username in the top right corner and select “Log Out”.
When logging back in click on the settings cog and choose the Gnome desktop instead of the Gnome Classic desktop.
The GNOME desktop is easy to navigate with an activities menu in the top corner and the same system icons on the top right.
Use the keyboard to bring up the activities by pressing the super key (windows key).
The activities window has a search box in the top middle, a launch bar with icons to your favorite applications on the left and workspaces on the right. Any open applications will appear in the center and you can scroll through them.
CentOS has a decent set of applications which come as default:
- Boxes – Virtualisation (like VirtualBox)
- Brasero – DVD burner
- Cheese – Webcam Viewer
- Documents – Document Viewer
- Ekiga Softphone – VOIP
- Empathy – Chat client
- Evolution – Email Client
- Files – File Manager
- FireFox – Web Browser
- gEdit – Text Editor
- LibreOffice – Office Suite
- Rhythmbox – Audio Player
- Shotwell – Photo Manager
- Youtube Browser
I used Boxes to get some screenshots for the installation process and loaded CentOS 7 as a virtual machine. (I am thinking of loading another CentOS 7 in the boxes on the virtual machine and keep doing it, like one of those window within window effects).
Boxes wouldn’t allow me to add a virtual machine however due to the way SELinux is working. I had to change the SELinux settings to be permissive.
Evolution is the standard email client, which coincidentally was top of my list of best Linux email clients which I produced recently.
FireFox is the default web browser and is my second choice web browser behind Chrome.
Other than that there isn’t much to report. There is LibreOffice which pretty much every distribution ships with as an alternative to MS Office and Rhythmbox which is a decent audio player which ships with GNOME anyway.
Flash, Multimedia Codecs, and Video
As CentOS is a community distribution you should not be surprised to find out that Flash doesn’t work without a little bit of extra work. Flash, who cares right?
The point of this section, therefore, is to make you aware of this webpage which shows how to install Flash, multimedia codecs and other useful packages like Handbrake, SMPlayer, and VLC.
Whilst I am here it is also worth sending you in the direction of these two articles from the Dedoimedo site which show how to create the perfect CentOS experience.
The graphical package manager is the GNOME software tool.
It has a simple interface with categories down the left, found packages in the top right and a description in the bottom right, as well as buttons for installing packages, visiting the package’s website, and highlighting dependencies.
The most important part of this software is the menu which in GNOME will appear on the top bar away from the main application itself. I highlight this point because it is easy to forget the menus are there sometimes.
The menu has an option called “only show native packages”. If left on, this can lead to frustration as you will search for software which you know should be there but doesn’t show up in the list.
The menu also has a link to the software sources. This is where you can get access to the non-free repositories and CentOS extra repositories.
Connecting To Network Storage
have a WD MyCloud as a network storage device. To be honest it drives me mad but not because of Linux but because it keeps losing its network connection.
Anyhow, none of this is CentOS’s concern because connecting to it is a breeze. Simply open Nautilus (the file manager) and select “Browse Network”. As you can see from the picture above, CentOS has no issues with regards to accessing the device.
As with accessing the network storage, setting up the printer did not cause me any headaches either.
Simply search for print settings from the search menu and then click add.
As I have a network printer it was found straight away with no extra work required to get it to print.
There were no major issues found whilst using CentOS. Like I mentioned before there was a permissions issue whilst trying to use Boxes but that is about it.
All in all after 2 weeks use I am happy to say that there have been no dramas and that really is what CentOS is all about. Steady, run of the mill, desktop computing.
CentOS is everything I expected it would be. It is reasonably easy to install, solid and dependable.
If you are new to Linux then you shouldn’t find this too difficult to master.
There are no oddballs nor are there any real quirks. In fact, it is really hard to summarise CentOS in great detail.
It is just good.
The CentOS WIKI will become your best friend though whilst using it.