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


Channel log from 29 January 2010   (all times are UTC)

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08:55
<jammcq>
sbalneav: Scotty !!!!!!!!!!!!!!!!!!!!!!!
09:00
<sbalneav>
Morning jammcq!!!!!!!!!!!!!!!!
09:00
<jammcq>
sbalneav: how cold is it today?
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09:06
<sbalneav>
-22C here
09:06
<jammcq>
what's that in American ?
09:06
it's 9F here
09:06
only slightly colder there
09:07
<sbalneav>
(-22) degrees Celsius = -7.6 degrees Fahrenheit
09:07
According to gooooooooooooooooooooooooooooooooooooooooooogle
09:07
<jammcq>
oh
09:07
I missed the '-'
09:07
so, it's a bit colder where you are
09:08
<sbalneav>
Mite nipply, yes. :)
09:08
<jammcq>
Marlon's in Manaus, it's 30C there right now
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09:10
<sbalneav>
Betcha they have Brahma there :)
09:14
<jcastro>
hi guys
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09:17
<alincoln>
hi jcastro
09:17
<jammcq>
jcastro: hey
09:17
<jcastro>
jammcq: I am doing LTSP over AC power.
09:18
<jammcq>
oh cool
09:18
careful you don't fry yourself
09:18
<etyack>
jcastro: cool
09:18
<jcastro>
it's pretty decent, 200mbits-ish
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09:24
<BF-Pod>
hi
09:25
<sbalneav>
Hello
09:25
<BF-Pod>
ah, just checking I can speak now
09:25
<Lumiere>
hi
09:26
unfortunately, due to the CTCP spam that freenode is having
09:26
I added the "unidentified users cannot speak" flag to this channel
09:26
btw... hi jammcq, etyack, sbalneav
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09:27
<etyack>
howdy Lumiere
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09:28
<alincoln>
case in point?
09:28
<Lumiere>
yea
09:29
<jammcq>
Lumiere: seems rather unfriendly to first timers coming here for help
09:29
<Lumiere>
they're not smart bots
09:29
jammcq: with any luck
09:29
in 2 days we won't need it with the move to the new ircd
09:29
but for now
09:29
<jammcq>
k, I guess
09:29
<Lumiere>
they're spamming trojan horses to people
09:29
which turns them into spammers
09:29
<jcastro>
jammcq: every channels' been getting pretty hammered. :-/
09:30
<jammcq>
I dont' recall #ltsp getting spams
09:30
but, I haven't been around much lately
09:30
<Lumiere>
it got em overnight
09:30
about 10 times
09:30
in 4 hours
09:31
<jcastro>
it's been a problem all week
09:31
<Lumiere>
0007,0011,0542,0543,0722,0723,1137,1300,1334,1509,1829,
09:31
<etyack>
i've seen it even longer, almost the entire month
09:31
not always in #ltsp
09:32
<Lumiere>
etyack: yea, but #ltsp got targeted yesterday
09:32
I passed on the suggestion to add +r
09:32
which blocks them from joining
09:41
<BF-Pod>
is is possible to mount the root path on a client in writable mode?
09:47
<sbalneav>
Using what, NFS root?
09:48
With nbd root, it'd be impossible
09:48
with nfs root, it'd be possible, but if you've got more than one client, it'd be a disaster.
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09:49
<sbalneav>
since multiple clients would be tromping all over each other.
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09:50
<guaka>
hi, some client machines aren't booting anymore, they get to "Loading initrd.img.........ready" (with some more dots of course)
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09:51
<sbalneav>
guaka: either a networking, dhcp, or tftp problem
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09:51
<BF-Pod>
I'm trying to compile the nvidia driver, which I thought may be necessary to run on the client
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09:53
<guaka>
sbalneav, dnsmasq seems to be running fine, I do find "tftp: client does not accept options" in daemon.log but that doesn't seem to be a problem (according to some posts I found through google)
09:53
the network is working pretty well still, but if it's some specific weird network problem, how to look for problems?
09:54
<sbalneav>
Don't know. I don't know anything about dnsmasq
09:54
I always use stock tftp-hpa and dhcp3-server
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09:55
<guaka>
sbalneav, dnsmasq is a DHCP server that also does DNS caching, which is convenient if you want to have names for your machines
09:55
<sbalneav>
I have names for my machines too. I just use bind.
09:56
<guaka>
ah, dnsmasq usually requires less attention than bind..
09:56
<Lumiere>
FYI -- anyone who can't talk will need to register. We're not ignoring you. See http://bit.ly/1MtZU for more information
09:56
<guaka>
but DHCP seems to be allright
09:57
<sbalneav>
guaka: Well, like I say, I'm not familiar with dnsmasq.
09:58
<alkisg>
guaka: try to download the newest pxelinux.0 from debian
09:58
I've seen a lot of newer PCs having problem with the version that Ubuntu ships...
09:58
http://packages.debian.org/sid/all/syslinux-common/download
09:59
Just copy pxelinux.0 from that package to /var/lib/tftpboot/ltsp/i386/pxelinux.0
09:59
A bug has been filed for Ubuntu to update to a newer version, but it hasn't been solved yet.... :-/
10:00
<sbalneav>
bbiab
10:00
<guaka>
ah, ok, I'll try that... in fact, the problem only appeared recently, I don't think anything has changed, and only on one specific type of machine, it seems now (I had to wait till someone left)
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10:01
<alkisg>
I've seen e.g. PCs booting once out of 10 with syslinux 2:3.63+dfsg-2ubuntu3, and 10 out of 10 with the debian version.
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10:10
<guaka>
hmm, with the debian pxelinux.0 it gets stuck right after "Trying to load: pxelinux.cfg/default", that's slightly worse than getting stuck after "Loading initrd.....ready" :/
10:11
or do I need to kick or push something before it likes another pxelinux.0?
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10:54
<BF-Pod>
If I enable Xinerama, should there be a mention of it in /var/log/Xorg.7.log ?
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11:11
<grantk>
I hope I do not repeat myself here, but I believe registration blocked me before. I was looking for documentation on ldm load balancing. I noticed in the LTSPManual.pdf that section 21.5 is missing a reference to somewhere, it just shows "See for details.". I think it should say see Chapter 23 but I am not sure.
11:11
Anyway I wanted to ask if anyone has seen any other documentation on ldm load balancing?
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12:55
<rjune>
Gadi, You know who resara is, yes?
12:57
<Gadi>
rjune: they are a company not a person, and sure do
12:58* Gadi expects them to be in the channel, too
12:58* Gadi looks around the room
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13:01
<sbalneav>
Afternoon Gadi
13:02
<Gadi>
cheers, scotty
13:02
are you a scotticicle today?
13:04
<sbalneav>
It's -7.9 F here today
13:04
Or -22 in proper units :) So yeah, it's a mite nipply here.
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13:04
<jammcq>
proper?
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13:04* Gadi shudders when scotty uses words like nipply
13:05* jammcq just giggles
13:05
<Gadi>
u and ur giggling
13:05
;)
13:05
<ogra>
shudder
13:05
<jammcq>
heh heh, he said nipply, heh heh
13:05
<ogra>
now i have pictures in my head for my portland flight tomorrow
13:05
thanks Gadi :P
13:06
<Gadi>
oh sure, blame me
13:06
<vagrantc>
ogra: it's not exactly warm here, but it's not really cold :)
13:06
<ogra>
yeah, i saw something around 10°C
13:07
after a week of -10 to -15°C here that will be like spring for me :)
13:08
<MaRX-Mode>
13:08
<Gadi>
sbalneav: I told you that r124 of ltspfs-trunk works well, right?
13:09
<sbalneav>
No, but good to hear. So that's two big bugs off the list.
13:10
<Gadi>
vagrantc: did you fix your localdev stuff?
13:10
<sbalneav>
1) "group ownership issue" 2) "No Auth Localhost"
13:10
<Gadi>
ah - the group ownership thing is upstream and tested?
13:11* Gadi hasn't gotten there yet
13:11
<Gadi>
very cool
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13:14
<vagrantc>
Gadi: nope
13:15
<Gadi>
vagrantc: :( it's almost *got* to be that something is not writable somewhere
13:16
<vagrantc>
Gadi: can't imagine where... the same exact code works on debian lenny
13:16
Gadi: so it's got to be behavior changed in something outside of debian
13:16
Gadi: er, outside of ltspfs
13:19
Gadi: my main guess is that the udev rules fire too early
13:19
Gadi: before it's made writeable
13:19
i guess i could write some hooks in the initramfs to mount stuff earlier
13:19
<Gadi>
that would make sense - but only if it works with, say, usb sticks once booted
13:19
<vagrantc>
in fact, maybe mount everything in the initramfs
13:20
Gadi: well, the usb sticks work once booted
13:20
Gadi: cdpinger is still borked
13:20
i still haven't had a chance to test with real hardware, either
13:20
<Gadi>
well, thats a good theory then
13:21
<ogra>
vagrantc, did debian switch from hal to devkit already ?
13:22
<vagrantc>
ogra: heck if i know
13:22
<ogra>
i think there changed quite a lot with that switch
13:22
<vagrantc>
probably ...
13:22
<ogra>
95% of the stuff is dirctly handled in udev or via libudev now
13:30
<Gadi>
vagrantc: got a sec?
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14:05
<vagrantc>
Gadi: sort of
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14:26
<Gadi>
vagrantc: I think the "pgrep" line in the call_cdpinger function in ltspfs_entry needs a "-x", so that if $1=cdrom, it does not match "cdrom1", etc
14:26
similar to what is done in ltsp-init-common
14:27
<vagrantc>
there's probably a significant amount of refactoring that could be done there anyways...
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14:30
<Gadi>
well, short of replacing some calls to "basename" and "awk", I think ltspfs_entry is actually not too terrible
14:31
now, that we got a lot of my older ugliness out of there
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14:36
<vagrantc>
Gadi: yeah, i'll add your commit with cdpinger.
14:39
<sbalneav>
vagrantc: Need any help from a c programmer on cdpinger?
14:40
<vagrantc>
sbalneav: sure!
14:40
sbalneav: though i want to get another upload of ltsp in to debian first.
14:40
<sbalneav>
What's failing on it for you?
14:40* Gadi is going to commit a cleanup of basename...
14:40
<vagrantc>
sbalneav: it just plain don't work.
14:40
sbalneav: which isn't much to go on, i know... :)
14:41
sbalneav: probably need to figure out some debugging hooks...
14:41
<sbalneav>
heh, does it segfault, or just quietly sit there doing nothing?
14:41
<vagrantc>
sbalneav: it runs fine, it's not not catching an insertion/removal events
14:41
or doesn't seem to be
14:41
<ogra>
revert to the python version ;)
14:41
<vagrantc>
heh
14:41* sbalneav slaps ogra with a wet noodle.
14:42
<jammcq>
or rewrite in perl
14:42
<vagrantc>
back in the good ol days, when we had unlimited ram to burn
14:42* ogra pulls up some ketchup
14:42
<vagrantc>
now with the economic downturn, we have to resort to C
14:43
<ogra>
well, C means you have to listen to the right kernel ioctl events
14:43
<vagrantc>
sbalneav: it's something different between debian lenny/stable and debian squeeze/testing|sid/unstable
14:43
sbalneav: lenny works fine
14:43
same code
14:44
my suspicion is changes in udev handling or some such
14:44
<ogra>
or the kernel
14:44
udev and kernel changes go hand in hand
14:44
<vagrantc>
sure
14:45
sbalneav: i think it's been broken for a long time though... since july at least
14:46
<sbalneav>
mmm
14:46
If you "start it manually", does it work?
14:46
<vagrantc>
sbalneav: so figuring out some improved debugging hooks/options/etc would probably help...
14:46
<sbalneav>
I can add some syslogging to it.
14:47
Sweet, sweet sysloggy goodness.
14:47
Syslog and lobsters.
14:47
That'd make a good name for a blog!
14:51
<vagrantc>
syslo[gb]sters
14:51
sysglobsters
14:51
<ogra>
blogsters ?
14:52
<vagrantc>
--
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15:00
<vagrantc>
doh.
15:01
there's no CD in the drive...
15:01
so starting it manually probably won't make much difference...
15:04
sbalneav: well... after starting cdpinger manually... it noticed the insertion event... but didn't notice the removal event
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15:05
<vagrantc>
maybe i should run the code from ltspfs-trunk ... just in case those code cleanups helped anything
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15:20
<Gadi>
vagrantc: just commited a few more cleanups
15:20
and pushed
15:20* Gadi stops mucking now...
15:20
<Gadi>
:)
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15:22
<vagrantc>
heh. i just noticed this patch in my debian dir... http://ltsp.pastebin.com/m2529e366
15:22
that should probably go upstream
15:22
been there since ltsp 5.1.90, i'm guessing
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15:37
<Lumiere>
FYI -- anyone who can't talk will need to register. We're not ignoring you. See http://bit.ly/1MtZU for more information
15:37
<vagrantc>
?
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17:03
<mfdutra>
hey guys. where is the hostname set in the client boot process
17:03
I'm grepping the scripts and can't find it
17:04
<vagrantc>
possibly from the initramfs
17:04
sort of
17:04
<mfdutra>
hmmmm
17:04
<vagrantc>
depends on if dhcp sends a hostname...
17:04
<mfdutra>
I have "ltsp1657" here
17:04
is there a logics?
17:04
<vagrantc>
ah!
17:04
yes, that's in the initramfs for sure
17:05
<mfdutra>
dhcp doesn't send it, but I wanna the hostname to set from the IP PTR record in dns
17:05
I'll write a script for that
17:05
<vagrantc>
ltsp-trunk/client/initramfs/scripts/nfs-bottom/ltsp
17:05
yeah, that's the default for when dhcp doesn't send a client-hostname ...
17:05
ltspX where X is some number based on the ip address
17:06
<mfdutra>
right
17:07
<vagrantc>
alternately can base it on mac address
17:07
HOSTNAME_EXTRA=ip|mac
17:08
<mfdutra>
yep. we have our DNS all set here
17:08
it's the IP addr in hexa notation
17:08
ex: 192.168.17.77 -> c0a8114d
17:08
<vagrantc>
i don't quite know how to get dhcp to send the hostname...
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17:09
<mfdutra>
it's important for me to have a FQDN as hostname, because we have about 70 VLANs
17:09
<vagrantc>
right
17:09
<mfdutra>
and I have subdomains for each one
17:10* vagrantc runs a network with about 15-20 terminals
17:10
<mfdutra>
a little more here :)
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17:11
<vagrantc>
probably wouldn't be hard to write code that just looks in DNS
17:11
<mfdutra>
yup
17:11
<vagrantc>
sets it to that, if anything is found... of course, DNS timeouts would stall boot
17:11
<mfdutra>
5-10 lines in python
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17:32
<highvoltage>
what are you guys babbling about?
17:32
(oh I should've scrolled down first :p)
17:33
<vagrantc>
hmmm... i should try testing with ext2 again ... squashfs appears to hang my thin client
17:33
hmmm... getltscfg:264 blocked for more than 120 seconds....
17:34
i'm going to say this is borked.
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20:36
<vagrantc>
stgraber: seems like it would be a good idea to use /var/run/sendsigs.omit, /lib/init/rw/sendsigs.omit and/or /lib/init/rw/sensigs.omit.d/* for making sure nbd doesn't hang on reboot
20:40
<sbalneav>
Evening vagrantc
20:40
<vagrantc>
hi.
20:41
finally got an upload in to debian with some patches since 5.1.99 ...
20:41
and now i'm doing a bunch of NBD testing
20:42
<sbalneav>
Cool!
20:42
<vagrantc>
i still am stumped with why X won't start with NBD+squashfs+aufs
20:42
(the method most similar to ubuntu)
20:43
it works fine with NBD+tmpfs bind mounts
20:43
i also confirmed that X won't start with NBD+ext2+aufs
20:44
my favorite combination, in theory, would be NBD+ext2+aufs
20:44
no need for ltsp-update-image.
20:45
but any time i add aufs into the mix, it hangs.
20:45
well, X simply doesn't start...
20:45
the machine actually continues to work... i can switch vt's to one with a shell...
20:46
<sbalneav>
Weird.
20:46
Somehing whacky with aufs?
20:46
<vagrantc>
X simply doesn't display the greeter.
20:46
that's my guess...
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21:24
<sbalneav>
vagrantc: I'm gonna head to bed early tonight. I'll spend some time adding syslog support to cdpinger tomorrow.
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21:27
<vagrantc>
sbalneav: thanks :)
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21:59
<vagrantc>
what on earth is this: http://bugs.debian.org/563958
22:02
<ball>
Is it a trout in a dustbin lid?
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22:14
<vagrantc>
i don't really get what a "Modular TFTP/Fuse supplicant
22:14
" is
22:14
but they actually have a package regarding ltsp...
22:20
<johnny>
tftp via fuse?
22:21
<vagrantc>
something crazy, yes.
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23:04
<vagrantc>
stgraber: nbd-proxy after ltsp-5.1.99 is totally broken for me...
23:04
stgraber: 5.1.99 works fine, though
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