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Bug in x2golistsessions with z-shell
by Ralf Schulze 21 Jul '09

21 Jul '09

Hello together. I stumbled over a bug concerning the resume of sessions with users that have 'zsh' as their default shell. The problem is the following: Somewhere during the resume something like 'export HOSTNAME && x2golistsessions' is executed. In 'bash' 'export HOSTNAME' sets the environment variable to the current hostname. In 'zsh' (and probably other shells, too) this fails leaving an empty HOSTNAME envirtonment variable. I suggest to change the perl script x2golistsessions to the following: #!/usr/bin/perl use strict; use Sys::Hostname; # <-- New line ... my $serv=shift; if( ! $serv) { #$serv=$ENV{'HOSTNAME'}; # delete this $serv = hostname; # <-- New line } ... This is probably much more robust and works fine here. Ralf P.S. I'm not on the list (yet), so please CC. -- Institut für Kernphysik - Universität zu Köln -------------------- Zülpicher Str. 77 E-Mail: Ralf.Schulze(a)ikp.uni-koeln.de 50937 Köln Fon: +49 -(0)221 / 470-3649 Germany www: http://www.ikp.uni-koeln.de/~rschulze

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kernel panic
by kamerun＠immerda.ch 19 Jun '09

19 Jun '09

hello, we try install thin client (pxe) with the docu http://www.linux4africa.de/x2go/ kernel is loaded, but after ti comes: kernel panic not syncing : VFS unable to mount root fs unknown block (...) when we try to mount it from a separate machine, running a linux machine, it hangs who can help? paul & michel

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Re: [X2go-dev] Testing X2go3
by Paul van der Vlis 27 May '09

27 May '09

Brian Moss schreef: > Paul it is good to here from you, this ML is unfortunatly fairly > dormant. But I hope we can help each other, and anyone else out there > listening. > > I am also testing x2go 3 on debian lennny, plus lenny-backports. Nice to hear there are more people ;-) > I am in transit right now but will be able to test out your use cases > and see if I have the same problems. > > An issue I am having currently is when launching just an application > not the whole desktop session. When clicking on a menu, say in > OpenOffice, the menu appears to be opening just for a second as if the > window was maximized full screen and then quickly resizes to fit the > true window size. Hmm, look-likes my problems with the resolution. I have not tried to launch only an application, interesting to know that that is possible. > My client is Ubuntu Jaunty using the gtk client packages for ubuntu. I use Lenny as client and server. My tests where even to localhost ;-) > I > need to retest my use case after removing compiz on the client, just > to make sure that it is not the problem. I don't think so. I have no Compiz installed here. > I am also interested in using Jaunty on the server and am collecting > information that I will soon post to my wiki about getting that > working. Not sure if that interests you. I like Debian, because it has security support for much more applications then Ubuntu. And because I like the Debian community a bit more then the Ubuntu-community. > There is also a forum that is quite active, but it is German and I > only speak english and a little french - from Canada. I have been > using google translate and there is lots of good information there to > view. I've seen it, but the latest messages are from a few month ago too. And I think this is strange when there is a brand-new X2go version, not even an announcement for the new version. I speak German, no problem for me, but I think it's not a good idea to have a German list, because there are many people who do not understand German, and all IT-people do speak some English. Further, I don't like forums. Best would be a mailinglist with integrated forum, but I don't know software what can do that... With regards, Paul van der Vlis. > Regards > > Happy x2going, > > Brian > > > > On 5/23/09, Paul van der Vlis <paul(a)vandervlis.nl> wrote: >> Hello, >> >> I am testing X2go3 on Debian Lenny. I use FreeNX for a long time so I >> have some experience with NX. I really like the fact that you have >> clients under GPL, and Debian packages ;-) >> >> My montior has a 1680x1050 resolution. When I use a 800x600 screen >> (default), the screen opens first on 800x600 but switches then to "max. >> space availabele", in my case 1672x972 (space without Gnome panels). The >> fonts are much bigger then normal. When I use "fullscreen" the client >> opens fullscreen, but the fonts are much too small. When I use >> "1280x1024" the client opens at 1280x1024 and switches to "max space >> available", in my case 1672x972, now the fonts seem to be OK! This is >> so in both the KDE client and the GTK client, I did test to "localhost". >> >> When I log-off a session, I see a message that I am logged in as user >> "Unknown". But "whoami" says I am user "paul", strange. >> >> Why don't I see an annoucement for the new version in the mailinglist, >> is there maybe another form of communication? >> >> I see in the header that there is an organisation what gives payed >> support for X2go. But I cannot click on it, and do not understand which >> firm it is. http://www.x2go.org/fileadmin/media/header_01.png >> >> The "donation" function does not work, I get a blank page. >> >> Keep on the good work! >> >> With regards, >> Paul van der Vlis. >> >> >> >> >> -- >> http://www.vandervlis.nl/ >> >> _______________________________________________ >> X2go-dev mailing list >> X2go-dev(a)lists.berlios.de >> https://lists.berlios.de/mailman/listinfo/x2go-dev >> Met vriendelijke groet, Paul van der Vlis. -- http://www.vandervlis.nl/

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x2goclient-cli single application problem
by Brian Moss 27 May '09

27 May '09

Hello all, I have been experimenting with the command line x2go client, x2goclient-cli, and have had great success except in one area. I am having difficulties getting the same results with the CLI client as I have with the Qt client when launching single applications. When using the Qt client the single application appears part of the local desktop, exactly how 'ssh -Y' appears. However when using the CLI client the application loads in a separate x2go window, and the single application does not have it's own window controls. When looking at the session manager - the dialog box that appears when you try and connect with a user that already has an active connection - I can see that the session type for the Qt client is 'Single Application' and for the CLI client it is desktop. The command I am executing is: x2goclient-cli --user mark --server instance_name.compute-1.amazonaws.com--command iceweasel --ssh-key ssh-keys/mark --geometry 800x600 --session-type unix-application I specify the session-type to be 'unix-application', which is by default 'unix-kde'. I found 'unix-application' in the help information for nxproxy. Any help would be appreciated, Thanks Brian

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auth.log growing...
by Paul van der Vlis 26 May '09

26 May '09

Hello, After installing X2go I see my auth.log is growing. I see this: --------- May 25 06:53:22 server sudo: root : TTY=unknown ; PWD=/ ; USER=root ; COMMAND=/usr/bin/x2gopgwrapper listsessionsroot server May 25 06:53:22 server su[17628]: Successful su for postgres by root May 25 06:53:22 server su[17628]: + ??? root:postgres May 25 06:53:22 server su[17628]: pam_unix(su:session): session opened for user postgres by (uid=0) May 25 06:53:22 server su[17628]: pam_unix(su:session): session closed for user postgres May 25 06:53:23 server CRON[16311]: pam_unix(cron:session): session closed for user root May 25 06:53:28 server sudo: root : TTY=unknown ; PWD=/ ; USER=root ; COMMAND=/usr/bin/x2gopgwrapper listsessionsroot server (...) ------- I did a "/etc/init.d/x2goserver stop" and that helps. And I can still login on the X2go server! I see it is checking the database, but I don't understand why exactly. Is it really necessary to do this every 5 seconds? --------- echo "select agent_pid, session_id, display, server, status,\ to_char(init_time,'DD.MM.YY*HH24:MI:SS'),cookie,client,gr_port,\ sound_port,to_char(last_time,'DD.MM.YY*HH24:MI:SS'),uname,\ to_char(now()-init_time,'SSSS'),fs_port from sessions \ where server='$2' order by status desc;"|psql -t x2go_sessions ;; ----------- I saw you can change the sleep-time (5 seconds) in this script: /usr/sbin/x2gocleansessions but I am not sure this is a good idea... With regards. Paul van der Vlis. -- http://www.vandervlis.nl/

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Contact of X2go-community
by Paul Menzel 26 May '09

26 May '09

Dear list, I asked one oft the developer, what way to contact them they prefer. Thanks, Paul Am Dienstag, den 26.05.2009, 08:01 +0200 schrieb Oleksandr Shneyder: > Paul Menzel schrieb: > > Dear Oleksndr, > > > > > > congratulations on the new release. > > > > Do you read the mailing list? There were some posts lately. (But maybe > > you are just busy.) > > > > Could you maybe update the website, what your preferred way is to > > contact the x2go-community/developers (mailinglist, forum, bugzille(?))? > > I could not find this information. > > > > > > Thanks, > > > > Paul > > Hello Paul, > > The best way to contact us is one of our forums: > http://developer.berlios.de/forum/?group_id=8454 > > You can also find this address on our website if you click on "get > community support" link. > > Yours sincerely, > > -- > Oleksandr Shneyder > Dipl. Informatik > X2go Core Developer Team > > email: oleksandr.shneyder(a)obviously-nice.de > web: www.obviously-nice.de > > --> X2go - everywhere@home

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Unable to mount root fs on unknown-block(0,255)
by Paul van der Vlis 23 May '09

23 May '09

Hello, I did a PXEboot install using this document: http://www.x2go.org/fileadmin/doc/de.installation.x2go.pdf After installation the thinclient does not start correct, I get an kernel panic: "Unable to mount root fs on unknown-block(0,255)". Can somebody help me with this problem? No problem to mount /opt/x2gothinclient/ from the client over NFS. So the NFS server works fine I think. I followed the manual and did not see problems. I will add some little points on the manual at the end of this mail, but this have nothing to do with my question. With regards, Paul van der Vlis. ----------------------- In the document I see: # vi /opt/x2gothinclient/etc/network/interfaces: This is wrong, the ":" is the problem. In my /opt/x2gothinclient/etc/apt/sources.list there ia s link to the x2go repository and the normal Debian repository, maybe good to add the security repository? I got an error about the public key of http://x2go.obviously-nice.de in the chroot. Maybe good to add the key. While installing the kernel I got a question about initrd: ------------ You are attempting to install an initrd kernel image (version 2.6.26-2-486). This will not work unless the boot loader is configured to use an initrd. An initrd image is a kernel image that expects to use an INITial Ram Disk to mount a minimal root file system into RAM and use that for booting. The boot loader must be configured to use such images and the system will not boot until this is done. This message will appear for any new kernel installation unless the following is added to /etc/kernel-img.conf: "do_initrd = Yes" Abort initrd kernel image installation? Yes/No --------------- "Yes" was the default, I choosed "no", and did later: echo "do_initrd = Yes" >> /etc/kernel-img.conf To test this behavour purge linux-image-2.6.26-2-486 in the chroot and install it again. While configuering atftp I became this error: unrecognized option `--mcastport' Seems that the "-" of "--mcast-port" was removed while copying from PDF. It is not /etc/dhcpd/dhcpd.conf but /etc/dhcp3/dhcpd.conf Sometimes you use 192.168.0 and sometimes 192.168.1, but you use a netmask of 255.255.255.0. Better te be consequent. Starting NFS gives errors about "subtree_check", /opt/x2gothinclient/etc/default/x2gothinclient gives many options, I don't use LDAP or PGP-cards. I've removed --pgp-card and --ldap= I changed "de" to "nl" and remove one of the two --add-to-known-hosts. I would like a link to a manual of x2goclient, or "x2goclient --help", or a man-page. X2goclient gives errors; ------- paul@server:~$ x2goclient --help Can't load translator (:/x2goclient_nl_nl) ! Can't load translator (:/qt_nl_NL) ! Usage: x2goclient [Options] Options: --helpÂ Â Â Â Â Â Â Â Â Â Â Â Â show this message --help-packÂ Â Â Â Â Â Â Â Â Â Â show available pack methods (..) --------- With regards, Paul van der Vlis. -- http://www.vandervlis.nl/

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Testing X2go3
by Paul van der Vlis 23 May '09

23 May '09

Hello, I am testing X2go3 on Debian Lenny. I use FreeNX for a long time so I have some experience with NX. I really like the fact that you have clients under GPL, and Debian packages ;-) My montior has a 1680x1050 resolution. When I use a 800x600 screen (default), the screen opens first on 800x600 but switches then to "max. space availabele", in my case 1672x972 (space without Gnome panels). The fonts are much bigger then normal. When I use "fullscreen" the client opens fullscreen, but the fonts are much too small. When I use "1280x1024" the client opens at 1280x1024 and switches to "max space available", in my case 1672x972, now the fonts seem to be OK! This is so in both the KDE client and the GTK client, I did test to "localhost". When I log-off a session, I see a message that I am logged in as user "Unknown". But "whoami" says I am user "paul", strange. Why don't I see an annoucement for the new version in the mailinglist, is there maybe another form of communication? I see in the header that there is an organisation what gives payed support for X2go. But I cannot click on it, and do not understand which firm it is. http://www.x2go.org/fileadmin/media/header_01.png The "donation" function does not work, I get a blank page. Keep on the good work! With regards, Paul van der Vlis. -- http://www.vandervlis.nl/

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x2go Server on Ubuntu Jaunty 9.04
by Brian Moss 12 May '09

12 May '09

I tried installing the Lenny packages on Ubuntu 9.04, following these<http://www.linux4afrika.de/x2go/setup1.html>instructions. But was unable to install x2gosessionadministration as it depends on kcontrol, which no longer is used by Ubuntu 9.04. I plan on trying with 8.10 Hardy as kcontrol was supported in that release. Has anyone else ran into this issue? I know from x2go's launchpad page,<https://launchpad.net/x2go>that support for Ubuntu is coming, and am wondering what the best way to proceed would be. Thanks, Brian

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GNOME does not initialize correctly: dbus-launch failed to autolaunch D-Bus session
by Paul Menzel 09 May '09

09 May '09

Dear list, I am running Debian Sid on the server and the x2goclient_gtk. Since some time (I think January 2009) the GNOME session does not start anymore and I can just see the background picture. Unfortunately I do not know what has changed on the system. Starting only a terminal or another program works. I get this in /var/log/user.log. Apr 13 17:02:18 hostname bonobo-activation-server (name-8129): could not associate with desktop session: dbus-launch failed to autolaunch D-Bus session: Autolaunch error: X11 initialization failed. The GNOME option seems to just run gnome-session. I did not find where this is specified. I tried to use an own command (Eigener Befehl) /usr/bin/dbus-launch /usr/bin/gnome-session (also with quotes) but got an error message. Starting a terminal and running this command worked though. You can find the version of the programs installed on the server at the end of this message. Do you have a solution for this problem? Thanks a lot, Paul $ LANG=C dpkg -l x2g* Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad) ||/ Name Version Description +++-==============-==============-============================================ ii x2goagent 3.3.0-3-1 Special NX-ized client, was developed by NoM un x2goclient <none> (no description available) ii x2goclient-cli 2.0.1-1 x2goclient-cli command line client for x2go ii x2goclient-gtk 2.99-3 x2goclient gtk client ii x2goserver 2.0.1-19 x2goserver (daemon and tools) $ LANG=C dpkg -l gnome-session Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad) ||/ Name Version Description +++-==============-==============-============================================ ii gnome-session 2.22.3-3 The GNOME 2 Session Manager $ LANG=C dpkg -l dbus* Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad) ||/ Name Version Description +++-==============-==============-============================================ ii dbus 1.2.12-1 simple interprocess messaging system un dbus-1-utils <none> (no description available) un dbus-qt-1 <none> (no description available) un dbus-qt-1c2 <none> (no description available) ii dbus-x11 1.2.12-1 simple interprocess messaging system (X11 de

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