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


Channel log from 3 March 2015   (all times are UTC)

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00:12
<gbaman>
vagrantc: got a minor issue.. OverlayFS replaces AUFS in Debian 3.18 kernel, but it has been renamed to Overlay, which in turn breaks LTSP. Suggestions?
00:20
<vagrantc>
gbaman: the code doesn't use "OverlayFS" anywhere, but it does use "overlayfs" ... so what exactly has changed?
00:20
the module name has changed?
00:20
<gbaman>
the module is now called overlay
00:21
<vagrantc>
gbaman: sounds like we need to update the relevent code to handle that as a third option
00:21
<gbaman>
Or it is in Debian 3.18 kernel I have been told
00:21
<vagrantc>
"have been told" ?
00:21
<gbaman>
which has in turn been pulled and used with the Raspbian team kernels
00:22
and it is in under overlay
00:22* vagrantc doesn't want to write code based on heresay :)
00:23
<gbaman>
Might be worth talking to Plugwash when he is next about in #raspbian, we noticed this at the weekend
00:24
Assuming there was an update done, any idea how long might take to filter through?
00:24
<vagrantc>
"filter through" ?
00:24
<gbaman>
As in, make it through into normal Debian repos
00:25
Given that usually takes a while :)
00:25
Which would in turn end up in Raspbian repos
00:26
<vagrantc>
it's not an appropriate change for Debian jessie or wheezy, so it will have to wait till after the release of Jessie.
00:26
given that the kernel in Jessie uses aufs.
00:27
<gbaman>
What kernel version is Jessie using?
00:27
<vagrantc>
3.16
00:27
<gbaman>
Ahh
00:27
Raspberry Pi now uses 3.18
00:28
So you are saying, will be 6 months+
00:28
<vagrantc>
and even then, it won't be in raspbian jessie
00:28* vagrantc first wants to verify that it's a real issue
00:30
<gbaman>
Sounds like I will just have to edit the initramfs manually
00:30
<vagrantc>
don't edit the initramfs, use fixed scripts to generate the initramfs
00:31
<gbaman>
Yip, that is my plan
00:31
<vagrantc>
at least rpi2 will support Debian armhf :)
00:32
<gbaman>
But will still be using normal Raspbian for a while yet
00:33* vagrantc wonders if the rpi community will make any better effort at getting kernel support upstreamed properly
00:33
<vagrantc>
would make raspbian irrelevent
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01:54
<vagrantc>
gbaman: i confirmed your issue.
01:54
working on a patch now.
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02:11
<vagrantc>
wow. it's worse than I thought.
02:12
overlay in the 3.19 kernel doesn't support NFS. :(
02:15* vagrantc wonders if it would support NFS images...
02:43
<vagrantc>
meh.
02:44
mounting a squashfs image over NFS is more broken due to "improvements" in the initramfs-tools NFS script...
02:51
so basically I need to fork the nfs boot script...
03:26
ok, well, NFS with a squashfs image can still work with initramfs-tools with some commandline workarounds.
03:39
well, committed and tested support for "overlay" fs to ltsp.
03:39
and figured out some workaroudns to use squashfs images on NFS...
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06:16work_alkisg is now known as alkisg
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08:07
<muppis>
Just made fresh install of Lubuntu 14.04. From client I can login to server with ssh, but not from LDM. No lts.conf defined, other than screens required to get shell.
08:08
<alkisg>
muppis: when logging in from ldm, do `tail -f /var/log/auth.log` on the server, do you get a successful login?
08:09
<muppis>
alkisg, yes.
08:10
And immediate logout.
08:10
<alkisg>
Which desktop environment?
08:10
<muppis>
LXDE
08:11
Isn't suitable?
08:11
<alkisg>
There's a bug in lubuntu.desktop file
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08:12
<alkisg>
moment, phone...
08:12
<muppis>
On hold.
08:14
<alkisg>
muppis: https://bugs.launchpad.net/ubuntu/+source/ltsp/+bug/1330252
08:15
(actually the bug is in ltsp, but I typed that ^ in a hurry...)
08:20
<muppis>
I'll test.
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08:34
<muppis>
alkisg, thank you, again. :D
08:34
<alkisg>
:)
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12:28
<stevecook>
Hello folks. Steve Cook here. Need some advice on how to fix the lock screen issue on pnp ltsp clients.
12:32
At the moment, if a client machine is left it locks, but then wont recognise the user password to come out of lock. The only option is to kill the session and re-log back in. i have set the clients up temorarily so that the lock is disabled....cont....
12:32
but this is not really satisfactory, so need to now how to fix it
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13:29
<alkisg>
stevecook: check my last answer to you in yesterday's logs: http://irclogs.ltsp.org/?d=2015-03-02
13:30
<stevecook>
will do
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13:34
<stevecook>
I've fopund that file you linked to. Is it a bacsh scrip and, if so, do I need to set it to run at start up. If so, is it a start up for the client or for the server or both. do i need to update the image?
13:34
sorry folks, that last set of questions is directed as alkisg
13:35
<alkisg>
Put it in /usr/share/ldm/rc.d in your server and then run ltsp-upate-image -c /
13:35
<stevecook>
brilliant, will do. willg et back and report in the next ten mins if you are still around
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13:46
<stevecook>
hi alkisg. Didn;t work I am afraid. Or, at least, i should add, I forced a lock screen and it wouldnlt acdept the password to come out of lock. Was that right, Or, should i have left it to go to lock scren by itself. Would that have made any difference? If not, would the solution be to do a full reinstall of a lter version of ltsp?
13:46
<alkisg>
You can test if it worked with `su - logged-in-username`
13:47
If you're able to authenticate, then it has stored your password
13:47
You've also put LDM_HASH_PASSWORD in lts.conf, right?
13:47
<stevecook>
yep
13:47
<alkisg>
What's your lts.conf like now?
13:47
<stevecook>
I'll just go and re-check that though...hang on
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13:48
<stevecook>
yep, i put this in the bottom of the lts.conf yeasterday ...."LDM_PASSWORD_HASH=true"
13:49
without the quotes, of course
13:49
hang on, your hash is in a different place to mine,. does thaty make a difference?
13:50
<alkisg>
Mine was wrong, yours is correct, but do you have correct [sections] in your lts.conf?
13:50
Can you pastebin it?
13:53* alkisg will be back in 30'
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13:55
<stevecook>
will do alkisg
13:56
erm....how do i pastebin folks?
13:57
just tersting this http://pastebin.com/siBPbW0M
13:58
okay, seems to work
14:18work_alkisg1 is now known as alkisg
14:25
<stevecook>
hi alkisg, did you get to take a gander at the script? Is it okay?
14:30
for information, the su - test one command in the terminal failed to authenticate
14:30
sorry that should have read "su - test1"
14:34
I have to dissapear for five mins, but pleased do post any advice alkisg as i will read when I return
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14:41
<alkisg>
stevecook: if the script didn't work, try a newer ltsp version
15:06
<stevecook>
perspective
15:07
ignore that last post
15:07
okay will do alkisg
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15:18
<stevecook>
alkisg, i am just about to do a full re-write of my system. and then install the latest version of pnp LTSP. where can i get hold of that please
15:18
<alkisg>
stevecook: it's not officially available for 14.04
15:18
It's in 15.04 etc
15:18
You can get it like you got ldm
15:19
packages.ubuntu.com/whatever
15:19
Why do you want to reinstall your system?
15:21
<stevecook>
glad to hear i don't. but was psychologically preparing for the possibility...! so, if I get hold of the ubuntu rust version, that should be recent enough? Addittionally, can i still follow that ubuntu titorial for installing pnp ltap or do i need to do something different given that it will be form local files
15:22
<alkisg>
Ah nope, 15.04 still has an old ltsp, http://packages.ubuntu.com/search?keywords=ltsp-client
15:23
It appears that stgraber haven't synced it from debian
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15:23
<alkisg>
So if you don't want to copy files like the one i told you manually, the only solution for now is debian jessie
15:24
...I think you should just keep 14.04 and try more :)
15:24
<stevecook>
fair enough
15:25
I copied that file to the relevant location like you said...and then redid the image......but it didnlt make any difference
15:25
<alkisg>
Maybe another file is missing, you should look to backport the patch yourself
15:25
!ltsp-source
15:25
<ltsp`>
ltsp-source: at http://bazaar.launchpad.net/~ltsp-upstream/ltsp/ltsp-trunk/files
15:26
<stevecook>
how do i go about identifying missing files? and how to I backport a patch
15:26
<alkisg>
I can't teach you that via irc
15:26
You might want to find someone more experienced to do that for you
15:26
<stevecook>
I iunderstand, casn you point me to where I can learn how
15:27
<alkisg>
Your googling is as good as mine, I can't point you on how to do a small part of being a developer...
15:46
<stevecook>
So, the latest debian will install pnp ltsp with no screenlock issues
15:46
is that right alkisg?
15:46
<alkisg>
Yes, although that wiki page doesn't describe what you need to do in debian
15:47
You need a few different steps there, there's a wiki page in the debian.org site for that
15:47
Also I believe that Ubuntu 16.04 will have that issue solved too
15:47
And, at some point, I might backport it for 12.04 and 14.04 as well
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15:49
<stevecook>
okay, am going to install latest debian and then try and install pnp ltsp. Cheers for now alkisg. I dare say I'll be back for more advice in due course
15:50
<alkisg>
stevecook: It's not released yet, I don't know if that matters for you
15:50
<stevecook>
what, jessie?
15:51
<alkisg>
yes
15:51
<stevecook>
as long as wheezy has what i need, wheezy will be fine. does wheezy have the necessary?
15:51
<alkisg>
No
15:51
<stevecook>
Wheezy still has the lock screen issue?
15:52
<alkisg>
Yes
15:52
It was only solved a few months ago
15:52
That's why it's not widespread yet
15:52
<stevecook>
and it is as unfixable in wheezy as it is in ubuntu 14?
15:52
<alkisg>
I don't know if you can find backports in wheezy
15:52
https://packages.debian.org/search?keywords=ltsp-client
15:52
I don't see 5.5.4 for wheezy there
15:55
<stevecook>
qlso, what's the difference betweem client, client core and client builder?
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15:55* alkisg doesn't have more time for support for now, sorry
15:55
<stevecook>
okay
15:55
<alkisg>
Google is your friend
15:56
Keep irc for specific questions that you can't find in google...
15:56
<gbti>
+1
15:58
<stevecook>
I am bound to report, that the only reason i came here is precsiely becasue such question are rareley of ever adequately answered via a google search. i cam e hare after many weeks of just such unfroutful searches. for example......
15:59
"difference between between ltsp client, client core and client builder" has produced pages of material, but form at least the first five of whoch i have just scanned, none of them explain that difference, but simply proceed on a presumably unspoken assunption that reader already knows it
15:59
This is typical, particularly when it comes to the finer points of ltsp
16:00
This place has provided more information in a few days than many weeks of searching on the internet more brioadly
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16:00
<alkisg>
Yes, but support comes at a cost of development time :)
16:00
<stevecook>
I understand that
16:01
<alkisg>
So if you can google about the package versions in wheezy, it saves support time ...
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16:01
<alkisg>
Anyways, /me signs off...
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16:01
<stevecook>
but, on the other hand, large scale take up of ltsp is only going to happen when this system is accessible by intelligent non specialists
16:01
<work_alkisg>
True, but we developers don't really care about that
16:01
:)
16:02
<stevecook>
lol
16:02
<work_alkisg>
It's up to you to do it if you want it
16:02
We use it in our own setups, and just make it available in case others find it useful
16:02
That's open source :)
16:03
<stevecook>
I suppose my own angle is a non specialist educationalist in the uk mainstream. I need a system that eithe rjust works, or one where the documentation takes one form a starting position of zero knowledge right up to expert
16:04
<work_alkisg>
Then open source isn't right for you
16:04
<stevecook>
Presently, there is a massive hole betweeen those two exptreme
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16:04
<work_alkisg>
There are some open source companies that might provide what you want for a fee
16:04
<stevecook>
I am linux though and though and have been for 5 years, so open source is for me I can assure you
16:04
<work_alkisg>
And there are non-open source companies that can do that too
16:05
I can't type Greek in 14.04 because gnome + ubuntu decided that the old, working way of configuring a keyboard wasn't good enough for wayland
16:05
I tried even to send patches but they were needed in 10+ different upstreams, so I gave up
16:05
So I'm just not using 14.04 yet
16:06
In open source you have to accept that some things stay broken for a long time, or are underdocumented, or crash, or don't do what you want
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16:06
<work_alkisg>
Anyways, that's the situation with ltsp for now...
16:25
<stevecook>
no worries alkisg and thanks for your help mate
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19:41
<lopta>
Out of interest, how large a boot ROM can a 3Com 3c905b take?
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19:44
<Hyperbyte>
How is that question related to LTSP?
19:45
Or are you not actually talking about a boot ROM?
19:45
<ogra_>
Hyperbyte, perhapy he wants to put LTSP client into the spare space :)
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19:46
<Hyperbyte>
ogra_, putting an LTSP client directly on the chips of the network card. :-D
19:46
That'd be one hell of a fast boot though. :P
19:46
<ogra_>
yeah :)
19:47
it would need to shrink a tiny bit though
19:47
<Hyperbyte>
Well, or bigger ROM chip size. :P
19:53
<lopta>
Hyperbyte: I really did mean a boot ROM.
19:54
ogra_: I was thinking more in terms of something like bootp but I suspect the machines I'd be putting them in would probably understand PXE anyway
19:54
...probably.
19:54
<ogra_>
hard to find one that doesnt have PXE support nowadays
19:56* lopta nods
19:56
<lopta>
I think I just put our last Pentium III on the scrap pile.
19:56
I'd take it to the recycling place today if it weren't so icy here.
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20:08
<lopta>
Knowing my luck I'd break an appendage.
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