![Centos 7 Installed With Legacy Centos 7 Installed With Legacy](http://elinuxbook.com/wp-content/uploads/2017/01/Select-CentOS-7-Installation-Environment.png)
I don't know if this matters, but I think you are in very early AMD/ATI stuff.
Vesa will not work for this reason: All the Vesa video modes are 4:3. I have yet to see any 16:9 vesa mode. 1920x1080 is 16:9
KMS should be ok, and the OSS drivers should produce something, but you may be short of the video ram for 1920x1080x24bit colour, or the dotclock may well be low and require a very low refresh. It would also benefit from LLVM - which means recompiling mesa and compiling llvm usually. The older cards could be notoriously fussy about interrupts, wanting a specific one (usually 12) and not agreeing to share it.
I have an RS690M from 2007 and none of the above caveats apply, but you are back before that somewhere, and people have stopped testing old stuff. For example, some dweeb 'cleaned up the code' and ripped out the AGP code to make some table because it was not needed for pcie, and suddenly my old 32 bit agp box sat down, and a patch was required. I do not know if that ever went mainstream, although I was told it would.
Vesa will not work for this reason: All the Vesa video modes are 4:3. I have yet to see any 16:9 vesa mode. 1920x1080 is 16:9
KMS should be ok, and the OSS drivers should produce something, but you may be short of the video ram for 1920x1080x24bit colour, or the dotclock may well be low and require a very low refresh. It would also benefit from LLVM - which means recompiling mesa and compiling llvm usually. The older cards could be notoriously fussy about interrupts, wanting a specific one (usually 12) and not agreeing to share it.
I have an RS690M from 2007 and none of the above caveats apply, but you are back before that somewhere, and people have stopped testing old stuff. For example, some dweeb 'cleaned up the code' and ripped out the AGP code to make some table because it was not needed for pcie, and suddenly my old 32 bit agp box sat down, and a patch was required. I do not know if that ever went mainstream, although I was told it would.
Centos 7 With Software RAID 1 and LVM For ROOT And Swap - Duration: 18:44. Shamoorthytube 50,142 views.
I have recently installed CentOS 7 (Minimal Install without GUI) and now I want to install a GUI environment in it.
How can I install Desktop Environments on previously installed CentOS7 without reinstalling it?
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3 Answers
1. Installing GNOME-Desktop:
- Install GNOME Desktop Environment on here.
- Input a command like below after finishing installation:
- GNOME Desktop Environment will start. For first booting, initial setup runs and you have to configure it for first time.
- Select System language first.
- Select your keyboard type.
- Add online accounts if you'd like to.
- Finally click 'Start using CentOS Linux'.
- GNOME Desktop Environments starts like follows.
How to use GNOME Shell?
The default GNOME Desktop of CentOS 7 starts with classic mode but if you'd like to use GNOME Shell, set like follows:
Option A: If you start GNOME with
startx
, set like follows. Option B: set the system graphical login
systemctl set-default graphical.target
and reboot the system. After system starts ![Centos 7 Installed With Legacy Centos 7 Installed With Legacy](/uploads/1/2/4/7/124727000/687514998.jpg)
- Click the button which is located next to the 'Sign In' button.
- Select 'GNOME' on the list. (The default is GNOME Classic)
- Click 'Sign In' and log in with GNOME Shell.
- GNOME shell starts like follows:
2. Installing KDE-Desktop:
- Install KDE Desktop Environment on here.
- Input a command like below after finishing installation:
- KDE Desktop Environment starts like follows:
3. Installing Cinnamon Desktop Environment:
- Install Cinnamon Desktop Environment on here.First Add the EPEL Repository (EPEL Repository which is provided from Fedora project.)
Extra Packages for Enterprise Linux (EPEL)- How to add EPEL Repository?
- And now install the Cinnamon Desktop Environment from EPEL Repository:
- Input a command like below after finishing installation:
- Cinnamon Desktop Environment will start. For first booting, initial setup runs and you have to configure it for first time.
- Select System language first.
- Select your keyboard type.
- Add online accounts if you'd like to.
- Finally click 'Start using CentOS Linux'.
- Cinnamon Desktop Environment starts like follows.
4. Installing MATE Desktop Environment:
- Install MATE Desktop Environment on here (You will need to add the EPEL Repository as explained above in advance).
- Input a command like below after finishing installation:
- MATE Desktop Environment starts.
5. Installing Xfce Desktop Environment:
- Install Xfce Desktop Environment on here (You will need to add the EPEL Repository as like above in 'Cinnamon' installation before).
- Input a command like below after finishing installation:
- Xfce Desktop Environment starts.
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Rather than make use of the hacking of a
startx
command into a .xinitrc
file, it's probably better to tell Systemd that you want to boot into a graphical GUI vs. the terminal.To accomplish this simply do the following:
Then simply reboot.
The last bit will associate the runlevel 5 target as your default with respect to Systemd.
Doing it with Systemd
You can also use Systemd to accomplish this. This is arguably the better method since you're managing the state of the system directly through Systemd and its CLIs.
You can see what your current default target is:
And then change it to graphical:
Targets
In Systemd the targets runlevel5.target and graphical.target are identical. So too are runlevel2.target and multi-user.target.
References
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Jose Manuel Gomez AlvarezJose Manuel Gomez Alvarez
protected by Community♦Feb 10 '16 at 1:03
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