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


Channel log from 11 January 2016   (all times are UTC)

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06:39
<MRH>
hi I am using Linux Mint 17.3 cinnamon. Software rendering on the server side (due to older graphics card) however I am also getting software rendering on the terminal.
06:40
which is unuseably slow
06:40
anyone know if this is a cinnamon issue?
06:41
or should specifying a XSERVER=driver in lts.conf fix it?
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06:43
<MRH>
the intial LDM works fast as expected (like it is using the correct driver)
06:44
<truth>
Has anyone been able to connect to an UEFI client so far?
06:57
<alkisg>
MRH: thin or fat clients?
06:57
truth: yes
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06:57
<alkisg>
Check the irclogs here for my notes
06:57
It's not very straightforward, a lot of the tools don't support it properly yet (e.g. ipxe)
07:00
<MRH>
thin(ish) no local apps but nbd
07:01
<alkisg>
MRH: 3d acceleration over the network doesn't work properly
07:01
So 3d environments are very slow
07:01
Either use 2d environment, or a fat ltsp session
07:02
3d => I mean those that use opengl effects, a compositor etc. 2d are gnome-flashback, mate, lxde, xfce...
07:02
<MRH>
ok
07:02
<alkisg>
!ltsp-pnp
07:02
<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
07:03
<alkisg>
==> if your client has enough RAM to be a fat client
07:03
!uefi | echo truth:
07:03
<ltsp`>
truth: uefi: To boot UEFI clients with LTSP, switch them to Legacy BIOS (CSM). If you can't, then use google translate on this one: http://alkisg.mysch.gr/steki/index.php?topic=6466.0
07:04
<alkisg>
Hmm that's for the case when the client do have a hard disk though... I did manage pxe booting, but that was it was more compatible with many clients
07:06
UEFI works best with grub. ipxe can't load a vmlinuz kernel, only an .efi image (so for me it wasn't suitable, I wanted to boot a 32bit kernel). syslinux.efi had problems the last time I tried it, but I do want to try it again with the latest version.
07:07
Also dnsmasq doesn't support proxydhcp for uefi yet, you need a real dhcp server, not a proxy one
07:12
<truth>
I already changed my ltsp-pnp setup to an isc-dhcp-server - unfortunately, ipxe didn't work.
07:12
Since my uefi-client has a hard disk I will now try to use grub.efi.
07:12
Is there any tutorial (link) how to do that?
07:12
<MRH>
i remember something about a cinammon 2d mode
07:14
<alkisg>
truth: ltsp-pnp + dnsmasq work fine with uefi, you just need to change one line, the proxydhcp one
07:14
I don't know of any tutorials other than the greek one I wrote, so try to use google translate on that one
07:15
<truth>
Thanks, I will try this.
07:15
<alkisg>
MRH: check /usr/share/xsessions, the available sessions are there
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07:25
<MRH>
thinking about fat clients - can i use sshfs to mount home and other diretories
07:25
with ldm authentication
07:26
<alkisg>
sshfs is the default, yes
07:26
<MRH>
for a full OS type thing
07:28
<alkisg>
Yes, that's what the ltsp-pnp page tutorial is about
07:28
!ltsp-pnp
07:28
<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
07:41
<MRH>
ok i am going to mess around with fat clients a bit
07:42
<alkisg>
MRH: what are your client specs? cpu/ram?
07:43
<MRH>
modern celeron 4GB
07:43
i tested it as a standalone booting from HD first
07:43
<alkisg>
Yup, you should definately boot them as fat clients
07:44
They'll run the same as if you were booting them from the HD
07:44
I.e. very fast
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07:44
<MRH>
would you happen to have any pointeres to mounting other diretories via sshfs - not just /home
07:44
<alkisg>
man lts.conf
07:44
!lts.conf
07:44
<ltsp`>
lts.conf: (#1) http://manpages.ubuntu.com/lts.conf, or (#2) lts.conf manpage is available in the ltsp-docs package
07:44
<alkisg>
Check for EXTRA_MOUNTS there
07:44
<MRH>
ok gr8 it's in there
07:44
<alkisg>
LOCAL_APPS_EXTRAMOUNTS
07:47
<MRH>
yep just found it thanks
07:48
anything but NFS
07:50
<alkisg>
NFS is more way more stable than SSHFS
07:50
But SSHFS is much easier and secure by default, that's why it's the default for ltsp
07:50
<MRH>
idk i have always had difficulty and overhead trying to get NFS secure
07:51
especially considering users can jack in to a network point
07:51
i like the idea of sshfs
07:53
<alkisg>
We've been using it for years here in 1000+ schools, it works OK except for hardlinks and cpu usage
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07:55
<MRH>
i just tend to use it between servers, on their own nice little VLAN
07:56
but then i don;t have the experience of that many users
07:56
*hostile users
07:56
lol
07:57
<alkisg>
For security it's better than nfs, sure
07:59
<MRH>
anyway thanks alkisg i gtr and catch a bus! it's early here :)
07:59
<alkisg>
bb
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