IRC chat logs for #ltsp on irc.freenode.net (webchat)


Channel log from 18 August 2014   (all times are UTC)

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04:27
<alkisg>
bennabiy: I don't expect fd5 to be in use while running rc.local, but you do have a point, so I bumped it to fd67:
04:27
!socat-server
04:27
<ltsp>
socat-server: to get remote xterms to your LTSP clients: RCFILE_01="while sleep 5; do TERM=xterm LANG=en_US.UTF-8 socat tcp:server:5500,forever EXEC:'bash -l',pty,setsid,stderr; done &" and then on the server: socat tcp-listen:5500,reuseaddr,keepalive=1,fork EXEC:"xterm -e 'socat stdio,raw,echo=0 fd:67'",fdin=67
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04:40
<vagrantc>
well, i figured out the systemd issue with ltspfsd
04:40
at least, partially
04:40
sometimes lack of internet can actually result in more productivity...
04:42* alkisg waves to vagrantc
04:42
<alkisg>
What was the issue?
04:50
<vagrantc>
alkisg: systemd kills off processes started from udev that are still running after a timeout
04:51
<alkisg>
So we'd need to daemonize it"?
04:51
<vagrantc>
it already daemonizes
04:51
systemd kills daemons!
04:51* vagrantc is composing an email to the relevent bug at the moment
04:51
<alkisg>
Eh, systemd got into religion too...
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04:53
<vagrantc>
basically, creating an ltspfsd.service file and starting that from udev works with systemd
04:53
<alkisg>
http://www.freedesktop.org/software/systemd/man/udev.html
04:53
Starting daemons or other long-running processes is not appropriate for udev; the forked processes, detached or not, will be unconditionally killed after the event handling has finished.
04:53
<vagrantc>
they know what's best.
04:53
<alkisg>
So you run `invoke-rc.d` from udev?
04:53
<vagrantc>
anyways, i've got patches that get it to work
04:54
systemctl ltspfsd start
04:54
maybe invoke-rc.d will work...
04:54
that would make it more init system agnostic, maybe.
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04:54
<alkisg>
And setsid doesn't work?
04:54
<vagrantc>
then we'd have to write an init script for it.
04:54
setsid?
04:54
<alkisg>
To have the child process in its own group...
04:55
setsid ltspfsd <params>
04:55
<vagrantc>
dunno
04:55* vagrantc wonders if ltspfsd assumes any variables are present
04:57
<vagrantc>
i think all the variables are used in calling it.
04:57
but it doesn't need any itself
04:59
<alkisg>
/usr/bin/ltspfsd
04:59
echo $! >/var/run/ltspfsd.pid
04:59
<vagrantc>
that never worked
04:59
<alkisg>
...I don't think that $! there works
04:59
Because it's not ran in the background by the shell
04:59
Try a setsid there, setsid /usr/bin/ltspfsd
04:59
<vagrantc>
ah, if we backgrounded it there, $! would work?
04:59
<alkisg>
Maybe that'll make systemd happy
05:00
<vagrantc>
would be simpler, for sure.
05:00
<alkisg>
Yes, but why would we need to do that in shell? Why not have ltspfsd manage its own pid?
05:01
<vagrantc>
cuz C is *hard*!
05:02* vagrantc also thought the creation of the mcookie should also be handled by ltspfsd or a wrapper script.
05:02* alkisg would prefer it if daemons were stupid things only caring about their stdio, and the whole backgrounding/pids/etc stuff was managed by an OS utility like start-stop-daemon
05:02
<vagrantc>
although ldm has the valid use-case of being able to export it before ltspfsd has been started
05:03
start-stop-daemon is not distro-agnostic
05:03
or at least, wasn't.
05:03
<alkisg>
I didn't mean specifically that one... any utility, e.g. systemd-start-daemon
05:04
It shouldn't be hard to write a distro-agnostic one
05:04
<vagrantc>
would be nice.
05:05
alkisg: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=758093#15
05:05
that contains my working, but not pretty, patch.
05:06
<alkisg>
E.g. start-daemon tftpd udp:69 => and then implement tftpd with plain stdio :P
05:07
(similar to inetd...)
05:07* alkisg starts designing systemd++ :P
05:08
<alkisg>
vagrantc: calling systemctl would make ltspfs a bit more difficult to backport, right? Maybe try if setsid works?
05:09
<vagrantc>
now that every major distro has conceeded to switching to systemd... alkisg would like to introduce systemd++!
05:09
<highvoltage>
lol
05:09
<vagrantc>
alkisg: well, could also test -f /bin/systemctl && systemctl .. || ltspsfd
05:10
but i'm trying your setsid trick now
05:10
alkisg: setsid didn't work
05:10
<alkisg>
Bummer
05:10
<vagrantc>
systemd udev is very insistant on killing daemons!
05:14* vagrantc wonders if service is generic enough
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07:19
<vagrantc>
hrm.
07:19
so, i'm not thrilled at the systemd support i've come up with...
07:20
but maybe I should commit it upstream anyways...
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12:44
<Arshpreet>
I am successfully able to install LTSP on Rocks Cluster using this tutorial
12:44
http://wiki.ltsp.org/wiki/Category:Fedora
12:44
Now I where I can get the docs to do required configurations and make it run?
12:53
Do i also need to install open-vz
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16:00
<vagrantc>
ok, i think i have the systemd stuff sorted out for ltspfs...
16:00
just need to figure out where to put the ltspfsd.service file in upstream
16:01
with all the auto-foo
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16:13* vagrantc just drops it in docs/examples and calls it a ltspfs 1.4
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16:33
<vagrantc>
cyberorg: hopefully the changes i made for ltspfs 1.4 will work for your systemd issues as well
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17:02
<FrankBlues>
I can't find any newer (newer than 2008) docs about creating clients that will boot on a PowerPC system (older iMacs) - has anyone had recent success with PPC clients and a AMD64 server?
17:06
I keep getting a "Failure trying to run: chroot /opt/ltsp/powerpc mount -t proc proc /proc
17:06
"
17:09
It's like someone missed a ";" or "&&" in a script somewhere...
17:10
<vagrantc>
you'd need to emulate powerpc with qemu-user-static, but the support for powerpc has been hit-or-miss, in my experience
17:11
or you could build the powerpc chroot on a powerpc machine natively, and copy the chroot/image over to your amd64 server
17:11
poewrpc network booting is a bit of an adventure, really.
17:11
good luck!
17:17
<FrankBlues>
"Adventure" seems a understatement... heh
17:17
Thanks!
17:26
I found an old prefab chroot for ppc (it's a fedora client, my server is ubuntu) - I'll give that a shot.
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17:45
<vagrantc>
stgraber: you probably want to consider pulling the new ltspfs just uploaded to debian.
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20:32
<cryptrat>
hello everyone
20:34
anyone familiar with getting xfreerdp remote apps to work from an XP SP3 machine ?
20:35
whenever i run the command it just loads a full remote desktop, not just loading the app
20:48
<||cw>
cryptrat: did you install the part on XP that does that? I also recall that MS broke it at some point
20:49
<cryptrat>
yeah i found that there was an update and the xp remote app
20:56
i installed them, edited the registry fDisabledAllowList dword to 1 used the remoteapp tool to add the apps to the registry
20:57
and still all i get is a full remote desktop
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