Permissions/Ownership issue? [Solved]

Wilson Phillips · 2008-01-14 12:58:38

Running KDE 3.5.8, I can open Konqueror, and click any text or openOffice fileand open it. Everything pretty much works as expected.

If I open File Manager - Superuser Mode, and try to open these same files, it fails with errors like <KDEInit could not launch 'kwrite'.> I can open these files with nano from the konsole window, so I can tell that it only happens in KDE.

I did some searching and did not find anything that helped so far. Anyone have an idea where I should look?

Last edited by Wilson Phillips (2008-01-20 13:52:14)

FUBAR · 2008-01-15 11:11:59

Try to su to root in a terminal and then open the same document using "kwrite /home/user/bla.odf". If you get an error concerning $DISPLAY, use "xhost +" as a normal user and afterwards retry opening the document as root.

Wilson Phillips · 2008-01-15 12:42:31

I get a No Protocol Specified error when I do that.

[root@deathstar wilson]# kwrite /home/wilson/.bashrc
No protocol specified
kwrite: cannot connect to X server :0.0

Same with .txt and .odt, but I can still use nano to edit these same files.

.:B:. · 2008-01-15 13:49:40

As FUBAR said: this is perfectly normal. You try to run an app that is not meant to be run in an X environment, as root.

Either adjust your settings (e.g. with xhost) or learn to master nano/vi/emacs/whatever to edit stuff in a command line environment .

If you configure sudo the right way you might be able to use it to run kwrite and similar (graphical) apps with root powers.

Last edited by B (2008-01-15 14:01:24)

broch · 2008-01-15 13:58:23

kwrite: cannot connect to X server :0.0

root (as mentioned already) does not have (should not have) rights to run X apps

you can "fix" this by issuing as user from command line
#xhost +
this will disable temporary acls (reboot will automatically reverse this or you can issue (again as user) #xhost - ) and root will be able to use X
next su to root and play with X

Last edited by broch (2008-01-15 13:59:09)

FUBAR · 2008-01-15 14:42:04

Dammit, listen to me!!

Wilson Phillips · 2008-01-15 17:27:45

Thanks guys. I will test this when I get home tonight.

I was not aware that root should not have the permissions to run X applications. I have been using openSUSE and it works there, so that was all I knew.

Snowman · 2008-01-15 19:16:05

You can also use kdesu to run graphical apps as root:
$ kdesu kwrite

Wilson Phillips · 2008-01-15 21:10:45

I do use nano to edit files if I am in a console window, but if I am already in Konqueror's Superuser mode and can simply click on a file to open it in kwrite, I find that to be a time saver and a nice convenience.

Snork · 2008-01-16 00:41:34

I've had the same problem. Here's what I've found:

Started after upgrading to xorg-xinit-1.0.7-3 today.
I edit a file with vim, get "No protocol specified" message.
I see "... X: client 9 rejected from local host ..." messages ( I boot to level 3, login as a default user, then startx to X and fluxbox, then su - to other users. The message is seen in the default user startx term. )
I can't open the display:
(firefox-bin:8400): Gtk-WARNING **: cannot open display: :0.0

[1]+ Exit 1 /opt/mozilla/bin/firefox

xorg-xinit-1.0.7-3 has a new file: /etc/X11/xinit/xserverrc which has a single line:
exec /usr/bin/X -nolisten tcp

From previous experience I know that with my setup, this will prevent me from opening Firefox, etc.

As broch said, xhost+ will "fix" it. I was using xhost +localhost, but that no longer works.

Overall, this is a better setup, as netstat -tap no longer shows any X listeners. And I have shorewall running on the box. Still I'd like to find something a little less "blunt force" than xhost+.

Snork

Wilson Phillips · 2008-01-16 02:09:00

FUBAR wrote:

Try to su to root in a terminal and then open the same document using "kwrite /home/user/bla.odf". If you get an error concerning $DISPLAY, use "xhost +" as a normal user and afterwards retry opening the document as root.

I was not getting the $DISPLAY errors, but yes, xhost + worked and then I could open kwrite from the command line. I can also open items in kwrite from konqueror. Thanks for the answer.

Snork wrote:

Still I'd like to find something a little less "blunt force" than xhost+.

Same here. This seems like a bit of overkill. I would prefer to allow root without allowing everyone.

Last edited by Wilson Phillips (2008-01-16 02:10:00)

Arch Linux

#1 2008-01-14 12:58:38

Permissions/Ownership issue? [Solved]

#2 2008-01-15 11:11:59

Re: Permissions/Ownership issue? [Solved]

#3 2008-01-15 12:42:31

Re: Permissions/Ownership issue? [Solved]

#4 2008-01-15 13:49:40

Re: Permissions/Ownership issue? [Solved]

#5 2008-01-15 13:58:23

Re: Permissions/Ownership issue? [Solved]

#6 2008-01-15 14:42:04

Re: Permissions/Ownership issue? [Solved]

#7 2008-01-15 17:27:45

Re: Permissions/Ownership issue? [Solved]

#8 2008-01-15 19:16:05

Re: Permissions/Ownership issue? [Solved]

#9 2008-01-15 21:10:45

Re: Permissions/Ownership issue? [Solved]

#10 2008-01-16 00:41:34

Re: Permissions/Ownership issue? [Solved]

#11 2008-01-16 02:09:00

Re: Permissions/Ownership issue? [Solved]

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