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


Channel log from 25 September 2017   (all times are UTC)

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00:58
<mmarconm>
does anyone use samba4 ad dc with ltsp ?
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06:04
<Hyperbyte>
Hello! What's the recommended way to show splash screen and hide kernel messages during boot of thin clients in 16.04? :-)
06:05
<alkisg>
!quiet-splash
06:05
<ltsp>
quiet-splash: to disable the splash screen in Ubuntu, in order to see any boot error messages, run sudo gedit /var/lib/tftpboot/ltsp/i386/pxelinux.cfg/default and remove quiet splash plymouth:force-splash vt.handoff=7
06:05
<alkisg>
...the opposite of that :D
06:05
You can put it in /etc/ltsp/update-kernels.conf too
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13:28
<alkisg>
!ipappend
13:28
<ltsp>
ipappend: o temporarily solve DHCP problems in the initramfs, try putting IPAPPEND 3 after the APPEND line in /var/lib/tftpboot/ltsp/i386/pxelinux.cfg/default. More info: http://www.syslinux.org/wiki/index.php/SYSLINUX#IPAPPEND_flag_val_.5BPXELINUX_only.5D
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16:15
<bennabiy>
alkisg: all of a sudden, epoptes stopped working on my lab. says service is not running, but it is running.
16:17
well, actually, I do not see it running, even though it should be
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16:26
<alkisg>
!vnc-dide | echo bennabiy:
16:26
<ltsp>
bennabiy: vnc-dide: To share your screen with me, run this: sudo apt-get --yes install x11vnc; x11vnc -connect srv1-dide.ioa.sch.gr - this is a reverse connection, it doesn't need port forwarding etc.
16:27
<bennabiy>
alkisg: I will have to check on this later.
16:28
lunch and daughters call
16:28
<alkisg>
ok
16:28
np
16:30
<vagrantc>
alkisg: you saw the reject for ltsp-manager? in any case, i'd like to re-upload it so that it can sit in review for a few more weeks, so that when you actually do have updates, they can make it to the archive ...
16:31
<alkisg>
Hey vagrantc, no I didn't notice it...
16:32
I'll check on it tomorrow
16:33
<vagrantc>
alkisg: i've already updated git's debian/copyright to match the copyrights listed in the files
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17:41
<fatclient^fatcli>
hello
17:41* vagrantc waves
17:41
<fatclient^fatcli>
how much time would a client take to boot the image on the very first boot up?
17:42
<vagrantc>
depends on the client, the network, the server and the image
17:42
<fatclient^fatcli>
i am getting a connection timed out message
17:42
i have used the ltsp-manager set up
17:42
<vagrantc>
there shouldn't be significant difference between first or future boots
17:43
fatclient^fatcli: what exactly is the timeout message
17:43
<fatclient^fatcli>
i used the steps from wiki.ltsp.org/wiki/ltsp-manager
17:44
error: socket failed: connection timed out
17:44
<vagrantc>
fatclient^fatcli: i'm guessing it's related to ipappend ...
17:44
!ipappend | echo fatclient^fatcli
17:44
<ltsp>
fatclient^fatcli ipappend: o temporarily solve DHCP problems in the initramfs, try putting IPAPPEND 3 after the APPEND line in /var/lib/tftpboot/ltsp/i386/pxelinux.cfg/default. More info: http://www.syslinux.org/wiki/index.php/SYSLINUX#IPAPPEND_flag_val_.5BPXELINUX_only.5D
17:44
<fatclient^fatcli>
ALERT! /dev/nbd0 does not exist. dropping to the shell
17:45
<vagrantc>
change i386 to amd64, if appropriate
17:46
<fatclient^fatcli>
yes we changed it to amd64
17:46
i'll try the IAPPEND 3
17:46
<vagrantc>
fatclient^fatcli: once you change the ipappend parameter, try rebooting
17:46
fatclient^fatcli: if that works, you'll need to also fix it in /etc/ltsp/update-kernels.conf
17:47
otherwise it may get overridden on updates
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18:01
<alkisg>
!ltsp-config-bug
18:01
<ltsp>
'ltsp-config-bug: Currently there\'s an issue with "ltsp-config nbd-server", to fix it run this as root: arch=$(dpkg --print-architecture); printf "[/opt/ltsp/$arch]\nexportname = /opt/ltsp/images/$arch.img\nreadonly = true\nauthfile = /etc/ltsp/nbd-server.allow\n" > /etc/nbd-server/conf.d/ltsp_$arch.conf; service nbd-server restart'
18:01
<alkisg>
qwebirc692832: see this issue &
18:02
^
18:02
It's a bug in recent ltsp, and this is the fix ^
18:03
<vagrantc>
alkisg: when was that bug introduced?
18:03* vagrantc struggled a bit finding the commit that caused it
18:04
<alkisg>
vagrantc: when I implemented support for .vdi files
18:05* alkisg is on amd64 now, so ltsp-pnp isn't very appropriate, so I'm using virtualbox to manage my "chroot" in vdi form
18:05
<vagrantc>
alkisg: i suspected that, but had a hard time tracking it down
18:06
<alkisg>
vagrantc: https://git.launchpad.net/ltsp/commit/?id=9573d0c9145c1945b8a580c1614123f47431014a
18:06
<vagrantc>
alkisg: it's only in git and your PPAs ?
18:06
<alkisg>
Yes
18:06
(it's fixed in git)
18:06
<vagrantc>
right
18:07
alkisg: so after all these years of pushing ltsp-pnp, and now that we've got ltsp-manager to have a nice frontend for it, you're already on to the next thing? :P
18:07
<alkisg>
So I updated the code to use "list_chroots" properly, but at one point it caused to list file names instead of full paths as was expected
18:07
Haha, no, I always wanted to support multiple sources for the images!
18:07
Without ltsp-pnp, using virtualbox wouldn't be possible
18:07
<vagrantc>
indeed
18:17
<q9>
alkisg: adding fuse-options in ltspfsmounter worked, but didn't yield the desired result. directories were effected to by the umask. However ltspfs support custom mount-flags via /etc/ltspfs/ltspfsd.conf (export LOCALDEV_MOUNT_OPTIONS="defaults,utf8,fmask=111")
18:25
<vagrantc>
q9: and LOCALDEV_MOUNT_OPTIONS is working for you?
18:33* alkisg would really prefer to just use reverse sshfs to export all local /media/$USER to the server and completely drop ltspfs :)
18:36
<qwebirc692832>
hi, added the IPAPPEND = 3 at the end of /etc/ltsp/update-kernels.conf
18:36
still not able to boot the client
18:36
<alkisg>
qwebirc692832: did you read what I wrote above?
18:36
!ltsp-config-bug
18:36
<ltsp>
'ltsp-config-bug: Currently there\'s an issue with "ltsp-config nbd-server", to fix it run this as root: arch=$(dpkg --print-architecture); printf "[/opt/ltsp/$arch]\nexportname = /opt/ltsp/images/$arch.img\nreadonly = true\nauthfile = /etc/ltsp/nbd-server.allow\n" > /etc/nbd-server/conf.d/ltsp_$arch.conf; service nbd-server restart'
18:36
<alkisg>
So, run this command above
18:37
<vagrantc>
alkisg: we'd still need a local automounter of some sort
18:37
<qwebirc692832>
ok will try and get back
18:37
<alkisg>
vagrantc: I'm sure there are thousands around... :)
18:37
If we declare that there's a local session there running, all DEs and maybe even systemd have code for that
18:38
<vagrantc>
sure
18:38
in theory, this would "just work" with the ltsp-pam stuff
18:38
for desktops that support it
18:38
presuming fat clients
18:39
<alkisg>
Fat clients don't need ltspfs though
18:39
(or reverse ssh)
18:39
Well, unless we want to also support remoteapps there
18:41
<qwebirc692832>
<alkisg> do i copy paste the entire command from arch onwards with sudo at the beginning?
18:41
<alkisg>
No, first run this: sudo -i
18:41
This will give you a root shell
18:41
Then, run this:
18:42
arch=$(dpkg --print-architecture); printf "[/opt/ltsp/$arch]\nexportname = /opt/ltsp/images/$arch.img\nreadonly = true\nauthfile = /etc/ltsp/nbd-server.allow\n" > /etc/nbd-server/conf.d/ltsp_$arch.conf; service nbd-server restart
18:42
All in one line, copy/paste
18:42
Then reboot the client
18:42
<qwebirc692832>
ok did that thank you!
18:42
i'll reboot the client
18:42
<alkisg>
(sudo command > file doesn't work as you expect, it doesn't have permissions to write the file,that's why it needs to be sudo -i first)
18:44
<qwebirc692832>
client wont boot
18:44
random: nonblocking pool is initiated
18:44
<alkisg>
!ipappend
18:44
<ltsp>
ipappend: o temporarily solve DHCP problems in the initramfs, try putting IPAPPEND 3 after the APPEND line in /var/lib/tftpboot/ltsp/i386/pxelinux.cfg/default. More info: http://www.syslinux.org/wiki/index.php/SYSLINUX#IPAPPEND_flag_val_.5BPXELINUX_only.5D
18:45
<alkisg>
You put ipappend to the wrong file
18:45
<qwebirc692832>
ok will remove the ipappend
18:45
<alkisg>
Put it in /var/lib/tftpboot/ltsp/i386/pxelinux.cfg/default
18:45
No
18:45
Just put it in that ^ file
18:45
<qwebirc692832>
i'll remove it from the wrong file and put it in the correct one
18:45
<alkisg>
What you have in /etc/ltsp/update-kernels.conf is ok
18:46
But it will work after ltsp-update-kernels and ltsp-update-image
18:46
<qwebirc692832>
ah ok ok
18:46
<alkisg>
So leave it there, but also put it directly in the pxelinux.cfg/default too
18:49
<q9>
vagrantc: yes. now i have 600 on files instead of 700
18:52
<alkisg>
qwebirc692832: I put the commands there: http://wiki.ltsp.org/wiki/Ltsp-manager/Installation
18:52
...those should help until I upload a new version...
18:55
<q9>
the x actually came from the underlying vfat
18:55
<qwebirc692832>
<alkisg> thank you
18:55
<alkisg>
np
18:55
Did it boot?
18:56
<qwebirc692832>
i added ipappend 3 in the default file
18:56
<alkisg>
I think it already has ipappend 2 there and you're supposed to change it to 3
18:56
<qwebirc692832>
question: ipappend 3 has to be added in the first instance of nbd correct?
18:57
<alkisg>
Yes, but I think it should be replaced from 2 to 3, not added
18:57
You can also do it in all instances
18:57
<qwebirc692832>
yes did that replaced
18:57
<alkisg>
OK
18:57
<qwebirc692832>
ok will do that
18:57
question: how do you update the ltsp-update-kernels?
18:57
<alkisg>
Did the client boot now?
18:58
Don't worry about ltsp-update-kernels until it boots
18:58
<qwebirc692832>
updated the image
18:58
ok
18:58
<alkisg>
Eh
18:58
If you update the image, it will put back ipappend 2
18:58
<qwebirc692832>
client image is updating
18:58
<alkisg>
You'll need to do it again
18:58
(to change it from 2 to 3)
18:58
<qwebirc692832>
will check if changed
18:59
<alkisg>
So, the problem now is that the configuration files are already generated, to propagate the change you'd run: sudo /usr/share/ltsp/update-kernels; sudo ltsp-update-image -c /
18:59
If you only run the second command, it will keep ipappend 2
18:59
<qwebirc692832>
yes had changed back to 2
18:59
put it to 3 now booting the client
18:59
<alkisg>
OK
19:01
<qwebirc692832>
HURRAY!!!!!!
19:01
thank you thank you
19:01
<alkisg>
Another satisfied customer ;)
19:01
<qwebirc692832>
:))))
19:01
should i run the above command ?
19:01
sudo /usr/share/ltsp/update-kernels; sudo ltsp-update-image -c /
19:01
<alkisg>
Run this: sudo /usr/share/ltsp/update-kernels
19:01
No need to run the second one, it takes too long
19:02
And you already fixed pxelinux manually
19:02
So you'll run it in the future when you need, and it won't put ipappend 2 again
19:04
<qwebirc692832>
Skipping yaboot configuration. install yaboot package if you need it. Skipping etherboot images. Install the mkelfimage package if you need them.
19:04
got this on running sudo /usr/share/ltsp/update-kernels
19:04
<alkisg>
Ignore those, just unrelated warnings
19:04
<qwebirc692832>
ok thank you
19:05
<alkisg> could you guide me to some reference of setting up dansguardian for web filtering ?
19:05
<alkisg>
No,that's not related to ltsp :)
19:05
Use your distro channel for that, e.g. #ubuntu
19:05
<qwebirc692832>
:)) ok
19:05
thank you once again
19:05
<alkisg>
np
19:06
<qwebirc692832>
this is my first time on irc - and i am amazed.
19:06
thank you
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19:11
<sutula>
vagrantc: Sorry for the slow followup/feedback. Your suggestion on bind mounting instead of symlink for /home works great and that was the issue from last week (building image including /home symlink won't work).
19:11
Would be nice to capture this somewhere, but probably nobody else would care.
19:12
On another matter, current epoptes seems to fork off a process that is not killed when eopotes closes. I wonder if that's worth logging somewhere and getting fixed at some point.
19:23
<vagrantc>
sutula: glad that worked well!
19:24
sutula: file a bug at https:///launchpad.net/epoptes
19:24
i think
19:25
<sutula>
ty
19:38
Seems it is here: https://github.com/Epoptes/epoptes/issues
19:38
<vagrantc>
oh yeah, github
19:39
we *might* move back to launchpad
19:39
at least, i would prefer it
19:52* sutula submits on github
19:57* vagrantc suspects no epoptes developers will hear about it
19:58
<vagrantc>
i guess i've already heard about it, but i barely qualify
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23:06* sutula guesses he better find the source and offer a patch if sutula wants it fixed :/
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