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


Channel log from 11 December 2012   (all times are UTC)

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08:03
<tarzeau>
good morning
08:04
i have an ltsp server on ubuntu 1204 (precise) 64-bit, with ltsp client in /opt/ltsp/i386 for i386 pxe clients... however they only boot into initramfs, what could i do to debug, get it to work?
08:11
<work_alkisg>
!quiet-splash
08:11
<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
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08:26* Hyperbyte yawns
08:36
<knipwim>
morning Hyperbyte
08:44
<Hyperbyte>
Morning. :)
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09:17
<vicd>
Hi. Is LOCALDEV working on 12.04?
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09:24
<vicd>
no /etc/udev/rules.d/ltspfsd.rules file, no ltspfsd running
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09:58
<markit>
hi, a friend of mine has all clients x86_64. Is it better have a chroot of 32 bit or 64? and the host?
09:58
I've heard and seen some tests where 64 bit reduce latency and increase performances, but I think eats more memory (in theory, just for integers...)
10:01
<Hyperbyte>
It's simple. You use 64-bit when your processor supports it and 32-bit when it doesn't.
10:03
If you have a 64-bit capable host, you use a 64-bit os on the host. If you have 64-bit capable clients, you use a 64-bit client chroot.
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10:35
<markit>
Hyperbyte: 32 bit are much better tested by ltsp guys, I'm sure
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12:07
<Hyperbyte>
markit, why are you so sure?
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12:19
<markit>
Hyperbyte: I'm not so sure... lookint some disk transaction benchmark.. 64 bit is 5x better than 32, sigh
12:19
http://www.phoronix.com/scan.php?page=article&item=ubuntu_1204_3264&num=2
12:20
but except of this there is not a big advantage
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12:42
<Hyperbyte>
markit, why are you even making an issue out of this?
12:42
Do you have some special hardware?
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13:34
<markit>
Hyperbyte: hi, as I said, I've been asked for a suggestion by a friend
13:34
so far I've always deployed 32 bit in chroot, since my clients are not 64 bit
13:35
and following alkisg's suggestion, 32bit pae for the server too
13:54
<Hyperbyte>
Where did alkisg suggest that?
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14:33
<markit>
Hyperbyte: because 32 bits saves ram, and if you have to update the server and then the chroot, you can share the same apt cache, with a big bandwidth, time and effort savings
14:33
(btw, this is the most lagged, not interrupted, conversation I've seen so far in irc ;P))
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16:44
<knipwim>
markit: yeah, not much going on here these days
17:28
<alkisg>
Indeed, 1 sentence per hour :D
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20:19
<vagrantc>
so, with lightdm on xubuntu 12.04, somehow the login managerdistinguishes between xfce and xubuntu.
20:19
with LDM, it doesn't seem to be the case.
20:19
both xfce.desktop and xubuntu.desktop have Exec=startxfce4
20:19
i think LDM only pays attention to the Exec line, not whatever magic distinguishes the two
20:19
so even if you select xubuntu, it just logs in with xfce.
20:19* vagrantc wonders if lubuntu has similar problems.
20:20
<vagrantc>
and i really wonder, what magic does lightdm do that makes it work.
20:20
i haven't tested with newer versions of LDM, which re-worked that code a lot, but i sus pect it has the same problem- it doesn't seem to do anything except run the Exec line.
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20:22
<alkisg>
vagrantc: ldm doesn't run /etc/profile*, could that be related?
20:22
<vagrantc>
dunno how
20:22
<alkisg>
By setting env vars or something...
20:23
<vagrantc>
don't see any such vars
20:24
<alkisg>
Not in profile.d/ either, right?
20:24
<vagrantc>
nope
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20:25
<vagrantc>
lightdm itself, and presumably other DMs presumably set some env var
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21:20
<vagrantc>
i think we may need to set DESKTOP_SESSION
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