I have installed many Linuxes at one time on the same computer. There are always problems with grub. You have to edit or re-write it after each one to get it the way that you want it. Also it is helpful if you have a large, separate home partition that you can use for all distros. I use different user names for each, roy, roy-suse, roy-fedora, etc. Never format the home partition. Just use it and choose a different user name. That means a custom or manual installation every time. None of this is newbie friendly. You try it at your own risk.
For newbies it is best if you have one basic installation of the distro of your choice, based on what you want in the way of fixed or rolling release, repositories, package management community, help, etc. Then you just change the desktop environment or add a new one. I use Kubuntu as my base installation, then add Synaptic (because I prefer it to other package managers) and from Synaptic I add different desktops from it. most are in the metapackages section. I install ubuntu-desktop, xubuntu-desktop, lubuntu-desktop, ubuntu-gnome-desktop, and cinnamon. That gives me kde (with the basic installation), unity, xfce, lxde, gnome and cinnamon desktop environments that I can switch to from the desktop manager (login screen). I just click on the session button (look differs with each desktop manager) and choose the desktop environment from the drop down menu. Then I login as usual.
You can do the same from any distribution, but not all distributions will include Unity. Arch has it, but most do not yet include it. You may also find some distributions favour one desktop environment or do a better job of supporting it. The best KDE distributions are openSuSE and Kubuntu, for example. Fedora is the best for GNOME. Mint is best for Mate and Cinnamon. Ubuntu is best for Unity. Ubuntu and the other *buntus have the most choice of desktop environments and the most packages for them.
There are reasons to have at least two desktop environments. I have had one mess up for short periods of time due to a partial update. If that happens to kde then I switch to unity and fix the problem or wait it out till it resolves itself, usually a few hours but sometimes days. I also like to have some experience with each one, so that I can give a knowledgeable opinion. Sometimes having too much gets me into trouble, but that is how I learn.
Roy
On Wednesday, April 1, 2015 8:48 AM, "'highskywhy@yahoo.de' highskywhy@yahoo.de [LINUX_Newbies]" <LINUX_Newbies@yahoogroups.com> wrote:
good afternoon
It was amistakte to install 2 Linuxes. I ll not repeat. As Newbie I did
a lot of mistakes. Thank You for Your ideas Regards sophie
Am 14.02.2015 um 23:34 schrieb Linux Canuck linuxcanuck@yahoo.ca
[LINUX_Newbies]:
> For future installations of Ubuntu desktops: You do not need to have
> separate Xubuntu and Ubuntu installations. You can have both installed
> on the same partition. Basically you just install one or the other, then
> using the package manager install the other as an alternative desktop.
> Let's say, that you installed Ubuntu. Then you open the package manager
> or from the terminal you just sudo apt-get install xubuntu-desktop. Once
> it is installed you would logout of Ubuntu and back into Xubuntu where
> it says 'session' on the desktop manager. To remove Ubuntu would be as
> simple as removing ubuntu-desktop with the package manager. It does not
> affect grub2 other than to remove Ubuntu from the list.
It was amistakte to install 2 Linuxes. I ll not repeat. As Newbie I did
a lot of mistakes. Thank You for Your ideas Regards sophie
Am 14.02.2015 um 23:34 schrieb Linux Canuck linuxcanuck@yahoo.ca
[LINUX_Newbies]:
> For future installations of Ubuntu desktops: You do not need to have
> separate Xubuntu and Ubuntu installations. You can have both installed
> on the same partition. Basically you just install one or the other, then
> using the package manager install the other as an alternative desktop.
> Let's say, that you installed Ubuntu. Then you open the package manager
> or from the terminal you just sudo apt-get install xubuntu-desktop. Once
> it is installed you would logout of Ubuntu and back into Xubuntu where
> it says 'session' on the desktop manager. To remove Ubuntu would be as
> simple as removing ubuntu-desktop with the package manager. It does not
> affect grub2 other than to remove Ubuntu from the list.
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Posted by: Linux Canuck <linuxcanuck@yahoo.ca>
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