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


Channel log from 2 March 2016   (all times are UTC)

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04:34
<cyberorg>
alkisg_away, yes, wanted to link to your server, but unfortunately the new image didn't work, also I've changed the language there so no modification to image is needed
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06:06alkisg_away is now known as alkisg
06:28
<alkisg>
cyberorg: btw, why aoe instead of nbd?
06:29
<cyberorg>
alkisg, because we default to that on openSUSE
06:29
<alkisg>
tcp/ip allows for rate limiting, thus helping solve the flow control issues
06:29
aoe is 10 times *slower* than nbd in mix-speed labs, where server=gigabit, and some or all clients = 100 mbps
06:30
<cyberorg>
yes, both has pros/cons :)
06:31
<alkisg>
10 times slower is a big con though...
06:34
<cyberorg>
what exactly is nbd-server setup for this howto? https://sourceforge.net/p/kiwi-ltsp/wiki/Using%20Ubuntu%20Precise%20images%20for%20old%20Thinclients/
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06:40
<alkisg>
cyberorg: do you mean the /etc/nbd-server/conf.d/ltsp_i386.conf file?
06:41
Or the central /etc/nbd-server/config file?
06:42
<cyberorg>
config just has includedir = /etc/nbd-server/conf.d/
06:42
what is in /etc/nbd-server/conf.d/ltsp_i386.conf and pxelinux.cfg/default
06:42
append
06:42
<alkisg>
# cat /etc/nbd-server/conf.d/ltsp_i386.conf
06:42
[/opt/ltsp/i386]
06:42
exportname = /opt/ltsp/images/i386.img
06:42
readonly = true
06:42
authfile = /etc/ltsp/nbd-server.allow
06:43
APPEND ro initrd=ltsp/i386/initrd.img init=/sbin/init-ltsp root=/dev/nbd0
06:43
Those are the defaults, if one puts it to i386 subfolder
06:43
And doesn't have multiple chroots
06:43
Those are automatically configured by ltsp, they're not manual settings by the sysadmin
06:44
<cyberorg>
so the export has to be "/opt/ltsp/i386" for it to work?
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06:45
<alkisg>
If the defaults are used
06:45
If one doesn't like the default name, he has to use nbdroot=xxx
06:45
Or, set ROOTPATH in dhcp
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06:52
<cyberorg>
alkisg, ok, updated the howto to include nbd as well
06:52
<alkisg>
Also, it'd be better if the how-to was in the ltsp.org wiki, wouldn't it?
06:53
Or do you think that it's kiwi-specific?
06:53
Ah yes it is, sorry
06:53
So, I'm troubleshooting the aoe issue
06:54
I think I found out what causes it, I'll verify it in a few minutes...
06:56
<cyberorg>
the howto would work on any server which has the needed services, nbd/tftp/dnsmasq
06:56
nothing kiwi-ltsp specific
06:57
<alkisg>
If the how-to is not specific, then it should be in ltsp.org
06:57
<cyberorg>
except first part, when using aoe we can let kiwi-ltsp script to set up vblade
06:58
there is more https://sourceforge.net/p/kiwi-ltsp/wiki/
06:58
<alkisg>
http://wiki.ltsp.org/wiki/LTSPedia is the official ltsp wiki
06:59
That's where we developers should be maintaining our docs for the users
06:59
Unless they are distro-specific, where they belong in the distro wikies then, sure
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07:03
<cyberorg>
yup, that is why stuff using kiwi-ltsp scripts is there
07:05
<alkisg>
That's why I was asking if the how-to is distro-specific :)
07:05
(08:53:07 πμ) alkisg: Or do you think that it's kiwi-specific?
07:05
...and you replied
07:05
(08:56:57 πμ) cyberorg: nothing kiwi-ltsp specific
07:05
...but OK, all clear now
07:06
<cyberorg>
alkisg, the precise image page, i meant, the part about nbd-server, can be used on any server
07:07
you missed the " except first part, when using aoe we can let kiwi-ltsp script to set up vblade" :)
07:08
<alkisg>
That was your next answer, after the "nothing kiwi-ltsp specific", yup, I do have the logs above... :)
07:08
We did have a bit of miscommunication, it's all ok now
07:09
<cyberorg>
:)
07:09
we could have howto on ltsp.org that enables use of precise image on any distribution though, that would help
07:10
<alkisg>
cyberorg: with vagrantc and knipwim we tried to make ltsp-tools that would allow how-tos to be the same in all distros
07:10
<cyberorg>
like you said time is coming soon when i386 will be left behind while hardware is still in use
07:10
<alkisg>
For example, ltsp-config nbd, or ltsp-update-image etc, generate the nbd configuration files
07:11
The problem with kiwi is that you don't want to use those tools so that we can create a common how-to for all ltsp users
07:11
If you would, it'd be great
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07:13
<alkisg>
You can put code in the ltsp tools that calls kiwi-specific tools
07:13
We do have infrastructure for that
07:13
<cyberorg>
alkisg, one day I'll branch and submit exactly that :)
07:13
<alkisg>
The main point is for all the users to have to run the same commands, whatever distro they're in
07:13
<cyberorg>
so far everything has been work in progress
07:14
now kiwi-ltsp script is almost feature complete
07:14
<alkisg>
E.g. `ltsp-config dnsmasq` should be able to configure dnsmasq in any distro
07:14
<cyberorg>
however i am away from computer for almost next 3 months starting today
07:15
<alkisg>
If we can write a set of how-to's that don't need to mention "kiwi" or "ubuntu" or "debian" anywhere, then we do have a good set of docs
07:15
No worries
07:15
It's possible that me and phantomas will write a new tool and go away from ltsp till then :)
07:19
<cyberorg>
alkisg, we have tried to keep kiwi-ltsp distro agnostic, lot of it should work on any distro, image building part needs kiwi, you can see it working on other distros https://sourceforge.net/p/kiwi-ltsp/wiki/Install%20on%20other%20distributions/
07:19
<alkisg>
OK, so, the problem with aoe was indeed the way I tried to minimize the initramfs size
07:19
It's a burden to try keeping ltsp to run in all distros
07:20
I don't want to also have to port/maintain kiwi...
07:20
<cyberorg>
we don't, it is done by kiwi project
07:20
<alkisg>
I'm sure that they don't have ubuntu packages for it, and I'd have to maintain it myself
07:20
<cyberorg>
like we don't maintain ltsp bits :P
07:21
<alkisg>
cyberorg: about the aoe fix, how do you want me to give you the new version?
07:22
Do you want it, or are you OK with what you have now?
07:22
<cyberorg>
i would like the new version from the wiki to your download link
07:22
may be create folder with images and a symlink to precise-i386-latest.img
07:23
like we do here http://download.opensuse-education.org/download/ISOs/
07:23
<alkisg>
cyberorg: I think I'll be using squashfs instead of btrfs, is it ok?
07:24
<cyberorg>
sure, if you also make en version available so we dont have to put howto modify locale in it
07:24
<alkisg>
They could just put LANG=xx in lts.conf
07:24
<cyberorg>
you've also disable ssh_known_hosts check?
07:24
<alkisg>
Yes
07:24
It downloads the known hosts on boot
07:25
<cyberorg>
wanted to leave this without needing lts.conf
07:25
<alkisg>
Let's do it from the command line then
07:25
What are you using that I'm not using?
07:25
quiet splash, what else?
07:25
I can set LANG=en when I see something different...
07:26
(you can also set lang from the command line, ltsp.lang=xxx)
07:26
<cyberorg>
can they set LANG at cmdline?
07:26
you preempted that!
07:26
<alkisg>
They can set any lts.conf var in the cmdline
07:26
<cyberorg>
cool, so that solves it
07:27
<alkisg>
They just need to put ltsp. in front of it
07:28
<cyberorg>
ok, give me download link that does not need changing when image is updated
07:28
<alkisg>
This is the dir: http://ts.sch.gr/repo/livecd/images/
07:28
This is the image: http://ts.sch.gr/repo/livecd/images/precise-i386.img
07:29
<cyberorg>
ok
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07:30
<cyberorg>
updated the howto
07:31* alkisg is compressing the new image, it'll be ready in a couple of minutes...
07:33* gehidore compresses alkisg
07:33
<alkisg>
akg
07:33
ouch, the rest of my letters were gone :(
07:34
cyberorg: ready, 241 MB only :)
07:34
<cyberorg>
thanks :)
07:35
<gehidore>
one of these days I really need to get back to ltsp... boss at the old place is killing me wanting everything else done but they all conflict with migrating the machines :(
07:35
and with my new job I've little time to spend on site
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07:52
<alkisg>
cyberorg: this was the patch needed to make aoe work again: http://bazaar.launchpad.net/~ltsp-upstream/ltsp/ltsp-trunk/revision/2714
07:52
When I manually added it to /etc/initramfs-tools/modules instead, it was loaded too early, breaking netbooting
08:03
<cyberorg>
alkisg, i suspected that y'day, rmmod and then modprobe worked so this was the reason
08:03
<alkisg>
I was thinking that *my* modprobe was too early (that networking was not initialized yet),
08:04
but it was an additional modprobe done by initramfs-tools, because of that file
08:09
<cyberorg>
that changed between the old working image and the new one?
08:09
<alkisg>
The old version had a very big initramfs
08:09
I tried to make it smaller by specifying MODULES=netboot instead of MODULES=most
08:09
That then broke aoe because the module wasn't there at all, like you told me
08:09
Then I put the aoe module in a configuration file
08:10
That caused an automatic modprobe aoe too early
08:10
So the solution was to remove the aoe module from the configuration file, and put it in a special ltsp hook instead, the one from the commit above
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08:55
<cyberorg>
alkisg, see you in couple of months, have fun
08:55
<alkisg>
cyberorg: you too!
08:55
Where are you going?
08:55
Hope you have a good time there, whatever you do... :)
08:56
<cyberorg>
https://airtribune.com/uxcop/info
08:57
<alkisg>
Niiiiiiiiice!!!!
08:57
I'll do that to, this year, but only once as a customer...
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19:38
<alkisg>
!precise-i386
19:38
<ltsp`>
precise-i386: Ubuntu 12.04 compressed btrfs chroot to boot really old clients (non-pae, >=64MB RAM): http://ts.sch.gr/repo/livecd/images. You can find the image, a screenshot and a README there.
19:38
<alkisg>
!stretch-i386
19:38
<ltsp`>
Error: "stretch-i386" is not a valid command.
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