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-   -   Why can't I start a X application from Konsole root logged ? (https://www.linuxquestions.org/questions/linux-desktop-74/why-cant-i-start-a-x-application-from-konsole-root-logged-899255/)

MaikoID 08-24-2011 04:36 PM
Why can't I start a X application from Konsole root logged ?
 
Hi, I'm using Kubuntu 11.04. In all Ubuntu's versions I always did the login with root in a terminal using the command:

Code:
sudo su -
then I put my password, after this I could do everything until I close the terminal. In Kubuntu 11.04 I can't do that.
Code:
maiko@maiko-laptop:~$ sudo su -
[sudo] password for maiko:
root@maiko-laptop:~# kate
No protocol specified
kate: cannot connect to X server :0
root@maiko-laptop:~# kpackagekit
unnamed app(2644): KUniqueApplication: Cannot find the D-Bus session server:  "//bin/dbus-launch terminated abnormally with the following error: No protocol specified
Autolaunch error: X11 initialization failed.
"

unnamed app(2643): KUniqueApplication: Pipe closed unexpectedly.

root@maiko-laptop:~#
Could anyone explain to me why can't I start a X application from root's terminal in Kubuntu?

andrewthomas 08-24-2011 05:23 PM
Use kdesu

Quote:
sudo frontend for KDE
KdeSudo is a graphical frontend for the sudo utility, which allows users to run programs as root (or another user) by giving their own password.
http://packages.ubuntu.com/natty/kdesudo

MaikoID 08-24-2011 05:28 PM
Same error:

Code:
root@maiko-laptop:~# kdesudo kate
No protocol specified
kdesudo: cannot connect to X server :0
root@maiko-laptop:~#

andrewthomas 08-24-2011 05:31 PM
Try running

Code:
kdesudo kate
as a user that has sudo privileges not as root.

MaikoID 08-24-2011 05:35 PM
I don't want to start my applications as a normal user, I want to do that with root privilegies without exit from my current terminal session or write the password again. I always did that in ubuntu why is it different in Kubuntu ?

andrewthomas 08-24-2011 06:35 PM
Quote:
Originally Posted by MaikoID (Post 4452546)
I don't want to start my applications as a normal user, I want to do that with root privilegies without exit from my current terminal session or write the password again. I always did that in ubuntu why is it different in Kubuntu ?
You will be running the application with root privileges, using sudo to elevate your user.

Code:
kdesudo kate
then enter your user password to run kate as root.

MaikoID 08-24-2011 08:02 PM
Quote:
Originally Posted by andrewthomas (Post 4452560)
You will be running the application with root privileges, using sudo to elevate your user.

Code:
kdesudo kate
then enter your user password to run kate as root.
you aren't understand me. I don't want to leave my current opened root shell session, I would like to have a behavior similar to Ubuntu.

I don't want to type root's password again.

MTK358 08-26-2011 08:44 AM
You run "kdesudo" as a normal user, not as root.

And by the way, isn't it "kdesu", not "kdesudo"?

andrewthomas 08-26-2011 11:50 AM
Quote:
Originally Posted by MTK358 (Post 4454072)
You run "kdesudo" as a normal user, not as root.

And by the way, isn't it "kdesu", not "kdesudo"?
That is what I thought, but I guess not.
http://packages.ubuntu.com/natty/amd64/kdesudo/filelist
Code:
/usr/bin/kdesudo
/usr/share/doc/kdesudo/changelog.Debian.gz
/usr/share/doc/kdesudo/copyright
/usr/share/man/man1/kdesudo.1.gz


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