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


Channel log from 19 March 2015   (all times are UTC)

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07:09
<vmlintu>
alkisg: what did you have in mind about nvidia drivers?
07:09
<alkisg>
Good morning vmlintu
07:09
I would like to create an nvidia-current-ltsp package that we can install anywhere, and that it only activates itself when booted as an ltsp client
07:09
I think you've done something like that already?
07:10
Ideally, I would like to do that for nvidia-legacy too...
07:10
And maybe even fglrx
07:11
*when booted as an ltsp client and an nvidia card is present, of course...
07:15
<vmlintu>
Good morning. The sun is shining nicely again..
07:15
Here's the modified package: https://github.com/opinsys/opinsys-debs/tree/master/packages/default/nvidia-graphics-drivers-304/debian
07:15
And here's the code to activate it: https://github.com/opinsys/puavo-ltsp/blob/master/client/init-puavo.d/90-puavo-setup-xserver
07:16
<alkisg>
That's all? No initramfs code needed?
07:17
<vmlintu>
Let me check for that to be sure - it's been quite a while since I've touched the nvidia drivers
07:18
<alkisg>
Does it work like I described, i.e. can I have it installed on a system without worrying about it breaking GL when a non-nvidia graphics card is installed?
07:19
<vmlintu>
Yes.. basically it installs all the files, but doesn't run update-alternatives at install time, but only when one wants to use it. That way the nvidia libraries do not replace any files if the driver is not activated
07:20
<alkisg>
That's very nice, thank you... do you provide a .deb file somewhere?
07:20
<vmlintu>
We are not using fglrx with trusty, so there's no existing package for that to do the same
07:20
http://archive.opinsys.fi/git-master/
07:21
<alkisg>
Thanks!
07:25
<vmlintu>
I just checked the initramfs on my laptop and couldn't find anything special regarding nvidia, but there could be some trick somewhere that I have forgotten
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17:22
<awei>
hi, I'm setting up a small office network (~10 users) with fat clients. I have the LTSP and fat client working. I'm wondering what I should do about authentication, shared folders and retrieving user's home folder from any client. Any suggestions?
17:23
<vmlintu>
alkisg: Did you try the package? Did it work?
17:23
<alkisg>
Hi vmlintu, no I didn't have the chance yet, maybe next week
17:24
awei: the user's home folder is mounted by ltsp using sshfs
17:24
authentication is managed by ltsp with ssh
17:24
So I'm wondering what do you mean that you have LTSP working.... :)
17:25
<awei>
sorry, noobish questions... Let me see if i understand you correctly. I can create new user accounts via chroot on the LTSP server for each of the user and they can access their home folder via any client. Is that correct?
17:25
<alkisg>
No
17:25
<vmlintu>
alkisg: ok.. I'm really not sure if there was some small piece somewhere that I have forgotten, so let me know if it doesn't work..
17:25
<alkisg>
You create users on the server, not on the server's chroot
17:25
vmlintu: will do, thanks again
17:26
<awei>
ok
17:26
and they can access the folder when the log in via fat client
17:26
<alkisg>
Yes, server:/home/username will be visible in client:/home/username
17:27
<awei>
Is there any benefit of creating an LDAP server for control access to certain shared folders, printers, etc?
17:27
<alkisg>
I don't know how LDAP can share folders or printers
17:28
<awei>
sorry, LDAP to authenticate to samba which will then share folders/printers
17:29
<alkisg>
Are the folders and printers on a windows server?
17:29
<awei>
no, they'll be served from the LTSP server as well
17:30
<alkisg>
Then why would you use a windows technology if you're not using windows?
17:30
<awei>
jWe'll have some windows clients
17:30
<alkisg>
They'll authenticate to ltsp?
17:31
<awei>
No, they're just on the network and need access to shared folder or printer
17:31
<alkisg>
Use samba for those, but you don't need samba for ltsp clients
17:31
<awei>
ok, thanks.
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17:56
<SWOCC>
Just curious if anyone has tried this. I've got all FAT clients and want to install VirtualBox on the LTSP image. Having some issues with missing files / folders in /sys for Virtualbox to run. Anyone try this before?
18:12
<alkisg>
SWOCC: it's very very easy with ltsp-pnp
18:12
!ltsp-pnp
18:12
<ltsp`>
ltsp-pnp: ltsp-pnp is an alternative (upstream) method to maintain LTSP installations for thin and fat clients that doesn't involve chroots: https://help.ubuntu.com/community/UbuntuLTSP/ltsp-pnp
18:12
<alkisg>
Otherwise you need the chroot to have the same kernel/arch as the server,
18:12
...or tricks to trick it to think so
18:13
<vagrantc>
how would virtualbox know what kernel the server is running on a fat client?
18:13
oh, to build the out-of-tree modules...
18:13
<alkisg>
At install time it uses dkms
18:13
Yup
18:13
<SWOCC>
alkisg: I've tried ltsp-pnp and LOVE it, but for the life of me couldn't get LDAP to work with it. LDM would not authenticate.
18:14
<alkisg>
SWOCC: you can maintain your chroot with ltsp-pnp, you don't need to use the same server if you don't want to
18:14
<SWOCC>
That's true. Good idea.
18:14
<alkisg>
I mean, install ltsp-pnp to a template client and then copy the result to the server's /opt/ltsp/images
18:15
(or use a VM)
18:15
<SWOCC>
Great idea. I'm going to try that.
18:15
<alkisg>
About LDAP, you've configured your server to use external ldap, and then the changes propagated to the clients?
18:16
<SWOCC>
External LDAP, yes.
18:16
<alkisg>
I'd like to hear about that, maybe there's an easy workaround for ltsp's cleanup.d directory there
18:17
IF it suits you better, of course...
18:19
<SWOCC>
alkisg: You're in Greece right? Interested in an intern?
18:19
<alkisg>
Hehe, I'm not affiliated with any university unfortunately
18:20
Where are you from?
18:20
<SWOCC>
alkisg: Student in the USA. Looking to move to Europe for 3-6 months.
18:21
<alkisg>
Age? High school, college...?
18:21
<SWOCC>
alkisg: College.
18:22
aklisg: Epoptes is your product as well I believe. Great product.
18:22
<alkisg>
Italc was crashing too much at that time, so... :)
18:28
<SWOCC>
alkisg: Age 20, College: Southwestern Oregon College
18:29
alkisg: Interested in Linux, embedded systems, and software development in general.
18:32
<alkisg>
How's your python/gtk/qt ?
18:33
<SWOCC>
alkisg: Qt good. No experience with python or gtk. Most of my experience has been rooted in C / C++ / Javascript / PHP / SQL
18:34
aklisg: Use Qt here for all GUI interfaces.
18:35
<alkisg>
That's quite good, if I hear anything here in Greece I'll ping you :)
18:35
<SWOCC>
Thanks.
18:36
In the meantime. You seemed interested in my external LDAP. Anything I can clarify for you?
18:36
<alkisg>
I mean, why was it breaking with ltsp-pnp
18:37
<SWOCC>
alkisg: Could authenticate in terminal but would fail with LDM login screen.
18:38
<alkisg>
Well if you ever want to try that again, do come here when you're able to give feedback directly
18:38
In other words, if you ever want to troubleshoot that, ping me
18:38
<SWOCC>
alkisg: So ctrl-alt-f2 - terminal. Use valid ldap user and password.... works. I believe LDM was using SSH.
18:39
<alkisg>
ldm is using ssh, so you have to configure ldap for ssh, yes
18:39
<SWOCC>
alkisg: Thanks again. I'll jump on that next week.
18:40
alkisg: When I ( thought I did ) configured SSH I could get SSH authentication to work, but it was not consistent. I even was able to login through LDM, once. Then it failed the second time.
18:40
I'll review my configuration and get back with you.
18:40
<alkisg>
ok :)
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19:18
<vagrantc>
doh.
19:18
that's actually someone in the same region
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