New User

[dobby9]

How can I safely add a new user.
I use the option user and groups and still when I add one new user the system refused to boot in GUI mode
It leaves me with a Cli
And as a newby I reinstall it.
Can somebody tell how to do it safely ?

regards
dobby9

[micia]

You should try with the good old command line

try the useradd command.

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useradd username


where username is the new user.
Refer to the man page to know more about this command,
I highly suggest you to read it before proceeding.

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man useradd


[Fitzcarraldo]

In the example below I had logged-in under my username fitzcarraldo, opened a Terminal/Konsole window and used the groups command to list which groups I am a member of. Then I used the id command to find the gid for my account. Then I switched to the root user and used the useradd command to add a new user herzog with the same gid and in the same groups as me. At the end I used the id command for the new user account in order to compare the output with that for my account.

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fitzcarraldo@acertm8215 ~ $ groups
root wheel audio cdrom video games cdrw usb users portage clamav messagebus haldaemon plugdev scanner entropy pulse-access pulse-rt pulse kvm vboxusers polkituser
fitzcarraldo@acertm8215 ~ $ id
uid=1000(fitzcarraldo) gid=0(root)
groups=0(root),10(wheel),18(audio),19(cdrom),27(video),35(games),80(cdrw),85(usb),100(users),250(portage),409(clamav),410(messagebus),411(haldaemon),441(plugdev),442(scanner),1000(entropy),1003(pulse-access),1004(pulse-rt),1005(pulse),1007(kvm),1009(vboxusers),1016(polkituser)
fitzcarraldo@acertm8215 ~ $ su
Password:
acertm8215 fitzcarraldo # useradd -d /home/herzog -s /bin/bash -m -g root -G wheel,audio,cdrom,video,games,cdrw,usb,users,portage,clamav,messagebus,haldaemon,plugdev,scanner,entropy,pulse-access,pulse-rt,pulse,kvm,vboxusers,polkituser herzog
acertm8215 fitzcarraldo # passwd herzog
New UNIX password:
Retype new UNIX password:
passwd: password updated successfully
acertm8215 fitzcarraldo # exit
exit
fitzcarraldo@acertm8215 ~ $ su - herzog
Password:
herzog@acertm8215 ~ $ id
uid=1001(herzog) gid=0(root)
groups=0(root),10(wheel),18(audio),19(cdrom),27(video),35(games),80(cdrw),85(usb),100(users),250(portage),409(clamav),410(messagebus),411(haldaemon),441(plugdev),442(scanner),1000(entropy),1003(pulse-access),1004(pulse-rt),1005(pulse),1007(kvm),1009(vboxusers),1016(polkituser)
herzog@acertm8215 ~ $ exit
logout
fitzcarraldo@acertm8215 ~ $

Instead of using the useradd command you can install via Portage the script superadduser and use that. It's a front-end to useradd and is independent of the desktop environment and can be used in any terminal window or even on a TTY console. To install it you would type, as root user, the following command:

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emerge -1v superadduser

For details of how to use it see Superadduser and this screenshot.

N.B. If, like me, you are one of the unlucky people who cannot use Compiz-Fusion (e.g. your GPU driver does not support it) then log-in as the new user via a TTY console (or log-in via your existing account, open a Terminal/Konsole window and use the command "su <new user's username>" to log-in as the new user) and edit the file /home/<new user's username>/.config/compiz/fusion-icon as explained in the post Re: Compiz White Screen. Otherwise when the new user logs-in (s)he could end up staring at the WSOD (white screen of death).