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


Channel log from 14 August 2012   (all times are UTC)

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00:22
<shh>
How can I check the temp of an Ubuntu 12.04-LTSP (amd64) thin client? It is a Toshiba laptop that pxe boots 12.04-amd64. This is not configured as a thick client. The server is Proxmox host, and Ubuntu LTSP server runs in a VM (Great BTW!).
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00:37
<passstab>
hi
00:38
<shh>
hello
00:38
<passstab>
i'm using debian testing with ltsp 5.4.2
00:39
i'v set up a chroot that works but i can't get it to pxe boot
00:40
<shh>
i am still a noob, but update the image?
00:41
Others here might be of more help. It has been quiet here for a little while.
00:41
<passstab>
apt-get update/upgrade in chroot?
00:41
<shh>
I think it is: ltsp-update-image
00:43
<passstab>
command not found
00:44
i installed ltsp-server-standalone
00:44
<shh>
yeaah, debian might be different than ubuntu.
00:46
<passstab>
how do i configure dhcp?
00:46
<shh>
just verified, that is the command i use under ubuntu 12.04 ltsp
00:46
well there are two ways
00:46
that i know of
00:47
it depends if you have an existing router providing dhcp
00:47
<passstab>
i do
00:47
<shh>
ok
00:49
look at the dnsmasq stuff, if you google for ubuntu dnsmasq ltsp you will find what I used. I have a server that runs in a vm, and it just passes the dhcp stuff only needed for tftp/pxe goodness. The router passes net and ip stuff.
00:50
this info might not pertain to debian, but it will get you started.
00:50
<passstab>
thanks
00:51
<shh>
:)
00:51
shit works like a charm
00:53
there are some other little kernel boot entries mods needed in my case, so if your thin client doesn't boot all the way, it may be because of a missing boot entry
00:54
if you do, remember to google "ipappend 3".
00:56
<passstab>
ok
01:12
still failing :(
01:14
<shh>
hmm
01:15
<passstab>
i should change ipappend 2 to ipappend 3 ?
01:15
<shh>
it might be 2
01:15
I am stoned, but I thought it was a 3
01:15
<passstab>
the instructions you gave me said 3
01:16
but it has 2 in the defaults
01:16
<shh>
i can check my server if you wish, I think its 3. When I told you 3 intially I was stoned then too. :)
01:16
<passstab>
:)
01:17* shh checking
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01:26
<shh>
yep, 3
01:27
ipappend 3
01:28
on a line all by itself.
01:28
<passstab>
but if it can't get to the boot screen thats not the problem, right?
01:28
<shh>
I would get the splash and then fail.
01:29
does your pxe client even get an answer when it boots?
01:31
<passstab>
no
01:32
<shh>
ahhh
01:32
well the dnsmasq thing should be of interest then.
01:34
your pxe client needs that tftp payload, and it is waiting for a server to tell it where to get the goods. Just to confirm, you do have network / pxe booting enabled in your thin client's BIOS?
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01:49
<passstab>
yes i got it to work with the edubuntu liveCD
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01:55
<shh>
out of ideas :(
01:56
<passstab>
thanks for trying
02:10
<shh>
np. it's pretty sweet once you get it going.
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02:23
<passstab>
ssh what do you use it for?
02:23
shh what do you use it for?
02:24
lol your name confuses anyone on IRC :P
02:25
thanks, good night
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02:47
<blakes>
Hyperbyte, are you really there are just sleeping?
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03:07
<blakes>
still having a boot problem on ltsp and 12.04... anyone brave enough to take it on?
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07:05
<Hyperbyte>
blakes, usually at 4:47 AM I'm sleeping. :)
07:06
<elias_a>
Hyperbyte: I guess blakes is walking upside down and does not know it :P
07:07
<Hyperbyte>
:-D
07:08
<elias_a>
Hyperbyte: Try to explain him, please!
07:08
blakes: Wakey wakey!
07:09
blakes: You descendants of passengers of Mayflower sleep in the middle of the day!?
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07:43
<Hyperbyte>
elias_a, you running fat clients by any chance?
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07:45
<[omicron]>
Hi all
07:48
<Hyperbyte>
Hey
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07:49
<Hyperbyte>
[omicron], what's up?
07:50
<[omicron]>
here... about to killing myself :)
07:50
someone using likewise-open??
07:50
<Hyperbyte>
!ask
07:50
<ltsp>
Hyperbyte: ask: Don't ask to ask a question, simply ask it, and if someone knows the answer, they'll respond. Please hang around for at least a full hour after asking a question, as not everybody constantly monitors the channel.
07:50
<[omicron]>
it seems to work fine.... EXCEPT (of course) when the user passwork expires...
07:51
then the seats (and the master server) becomes bit crazy
07:51
s/passwork/password :P
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07:59
<[omicron]>
hummm... I'm trying to change a user password using CLI and I can see... "Password does not meet requirements" and "Autentication token manipulation error"
08:00
any ideas?
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09:05
<elias_a>
Hyperbyte: No. Sorry :(
09:05
Hyperbyte: Ask vmlintu. He is.
09:13
<vmlintu>
yep
09:15
<Hyperbyte>
vmlintu, how large is your /tmp tmpfs partition?
09:15
512mb, right?
09:15
(on the fat clients)
09:18
<vmlintu>
depends on how much the client has memory.. some seem to have 256mb, some 1.5gb
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09:18
<vmlintu>
/tmp size, that is
09:19
<muppis>
Dos that use tmpfs?
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09:19
<vmlintu>
Filesystem 1K-blocks Used Available Use% Mounted on
09:19
tmpfs 1676072 88 1675984 1% /tmp
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09:20
<vmlintu>
that's from one of the fat clients
09:20
<muppis>
So it is totally relative to available ram because nature of tmpfs.
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09:23
<vmlintu>
yes, tmpfs seems to default to half of available ram
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09:58
<edgarin>
Hi!
09:58
somebody here?
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10:20
<knipwim>
!ask echo edgarin
10:20
<ltsp>
knipwim: Error: "ask" is not a valid command.
10:20
<knipwim>
!ask
10:20
<ltsp>
knipwim: ask: Don't ask to ask a question, simply ask it, and if someone knows the answer, they'll respond. Please hang around for at least a full hour after asking a question, as not everybody constantly monitors the channel.
10:34
<edgarin>
Can I use a Vortex86mx with las ubuntu?
10:37
<cyberorg>
knipwim, you work on gentoo right?
10:38
<knipwim>
edgarin: it's x86 arch right?
10:38
cyberorg: yes
10:38
<cyberorg>
knipwim, does nbd > 3 work for you?
10:38
nbd version
10:39
<knipwim>
haven't tried
10:39
i tried once to implement, but found a lot of problems
10:39
<cyberorg>
k, seems broken, last one that works here is 2.95
10:40
<knipwim>
gentoo still runs nfs-only
10:40
<cyberorg>
it should be broken on upcoming ubuntu/debian as well, wanted to know IF it works there
10:40
<knipwim>
is it broken in all 3+ versions?
10:41
gentoo has a 3.0, 3.1.1 and 3.2 available in testing
10:41
<cyberorg>
knipwim, i tested 3.1.1 and 3.2, both broken, for opensuse 12.2 we may have to default to aoe
10:41
probably you ran into that, try old nbd
10:42
<knipwim>
i think i tried all versions below 3
10:42
but still problems
10:42
but i think it's an issue with the initramfs rather than nbd itself
10:43
<cyberorg>
on 12.1 we had 2.9.20, i think last ubuntu had 2.9.25
10:45
will find out from alkisg/vagrantc if they run into any issues on new nbd
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12:24
<rickogden>
hmm, sudo ltsp-update-image --cleanup / is not creating a new .img file :/
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12:39
<bieb>
Hyperbyte: you here??
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13:26
<[omicron]>
hi again guys
13:27
one question ... how it is supposed to change the users passwords when they expire? The seats logon manager crashes when the system prompts the user to enter the new password and restarts itself
13:28
some plan to prevent this?
13:29
<muppis>
Isn't it root job anyway to change expired password?
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13:37
<[omicron]>
absolutely not
13:37
I've 742 users in 192 stations in different hours and turns
13:37
how I must change all of this?
13:37
<dead_inside>
you could use ldap, i use that and built my users a simple php web page to enter their un/old pass/new pass
13:37
<[omicron]>
think in active directory way...
13:38
when the password is expired, a prompt appears to the user telling him to change its password
13:38
<dead_inside>
yea we get the same problem
13:38
<[omicron]>
this is a good way (if you don't want see me jumping over a bridge :D )
13:38
<dead_inside>
which bridge?
13:39
lol
13:39
<[omicron]>
the golden gate... for example
13:39
:D
13:39
<dead_inside>
thats not the best water for a swim
13:39
<[omicron]>
I don't know... I'm from Spain... I told you some famous bride ;)
13:40
<dead_inside>
oh lol
13:40
jump off hoover dam, gives you a nice view for a while before…..
13:41
<[omicron]>
jumping always provide another way to see the thins
13:41
hahaha
13:41
thinGs
13:41
<dead_inside>
are you using ldap or active directory or something like that?
13:41
<[omicron]>
in this case I need to use AD
13:42
<dead_inside>
ok sorry but i wont be much help, all i know is ldap and nothing about AD
13:42
<[omicron]>
well... this is my firs AD (OMG! xD)
13:42
firsT
13:42
<dead_inside>
lol
13:42
good luck
13:42
<[omicron]>
my keyb is in holidays...
13:44
well, thank you for your time
13:44
I will try to make some GTK-THING to prompt the users
13:44
pray for me :D
13:44
<dead_inside>
hey no problem, always willing to help
13:45
real quick, is there a shadowMax attribute in AD?
13:45
thats the thing in ldap that causes passwords to expire
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13:46
<[omicron]>
well in AD you can define some values... for example: you can put a date to expire (totally) the accound (I think this locks the account itself... but I'm not absolutely sure)
13:46
there is also another value than tells the user that it HAS TO change the password in the next time to logs on the system
13:46
<dead_inside>
maybe if you set the date to expire like a very long time from now they will stop expiring and stop prompting your users
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13:47
<dead_inside>
or do you want them to change their passwords?
13:47
<[omicron]>
yes but in spain we've a law about privacy and security and we must change our passwords at least one time a year (in the case of this users...)
13:47
<muppis>
As my experience as user in large systems I had to contact to support person if my password expired.
13:48
<dead_inside>
oh wow
13:48
<[omicron]>
in administration users (who manages money, accounts, etc) it must be changed at least twice
13:48
<dead_inside>
thats got to be a fun law
13:48
<[omicron]>
that's it... fun
13:48
hahahah
13:49
and well there is another way to see the problem
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13:49
<[omicron]>
if I give you a password (as your sysadmin)... I'm sure than you will change it immediately... or not? ;)
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13:50
<[omicron]>
I need to provide (too) this option
13:50
<dead_inside>
lol i would just recommend ldap
13:50
<[omicron]>
I'll be in the same problem
13:50
the problem is not the password or their expiration
13:51
<dead_inside>
the problems the users
13:51
<[omicron]>
is the logon manager on LTSP
13:51
for example I put in AD a demo user called dummymaster
13:51
passwd: n3rds4all
13:52
the password expires today and the linux system prompts me the time to change it
13:52
I can change using, kpasswd for example
13:52
but LTSP logon manager only prints : dummymaster@lstspserver: password
13:52
then crashes
13:52
and then restarts itself
13:53
THIS is the problem
13:53
hehehe
13:53
<dead_inside>
but your using AD
13:53
<[omicron]>
AD also implements kerberos and ldap
13:53
<dead_inside>
not correctly
13:53
and according to RFC standards
13:54
but then again i know nothing about AD, like i didnt even know it integrated with the LDM to be able to change passwords
13:55
but i know microsoft
13:55
<[omicron]>
let me show something, one sec ;)
13:55
<dead_inside>
kk
13:57
<[omicron]>
shit... I can't find the link :(
13:57
<dead_inside>
lol its ok
13:58
<[omicron]>
well it shows how the ubuntu 11.04 logon manager prompts for the change of the password
13:58
Password expired: put your current password
13:58
new password
13:58
retype
13:58
ok, all done
13:58
it is something like that... but in images
13:58
xD
13:59
<dead_inside>
then use the ubuntu login manager instead of the ltsp one...
13:59* dead_inside thought they were the same
13:59
<[omicron]>
hummm...
13:59
interesting
14:00
<dead_inside>
i am sure someone around here can tell you how, not sure whos awake right now though
14:01
<[omicron]>
time to read about this ;)
14:01
thanks a lot
14:01
<dead_inside>
np bud
14:01
<[omicron]>
cu
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14:17
<Hyperbyte>
bieb, hi
14:18
bieb, afaik, home directories aren't created automagically.
14:18
There maybe some way to do that, but I haven't looked into it
14:18
But - a user needs a home dir to log in with LTSP. :)
14:20
<bieb>
Hyperbyte: if I login to AD from the server.. it creates their homedir then.
14:20
Hyperbyte: but the 2 test users in that pastebin, have homedirs already
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14:24
<Hyperbyte>
Ah.
14:25
What happens when you set SCREEN_02 and login to <user>@server from there?
14:25
<bieb>
havent tried that
14:25
<Hyperbyte>
(don't change the @server part)0000000000000000
14:26
<bieb>
so should I just ctrl-alt-f2 and login there?
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14:33
<Hyperbyte>
bieb:
14:33
!screen_02
14:33
<ltsp>
Hyperbyte: screen_02: To get a root shell on an Ubuntu thin client: https://help.ubuntu.com/community/UbuntuLTSP/ClientTroubleshooting#Using_a_shell_SCREEN
14:33
<Hyperbyte>
Then ssh bieb@server
14:33
Replace 'bieb' with your username, leave '@server'
14:33
<bieb>
so @server not the actual server name
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14:36
<bieb>
after making the lts.conf change, I need to update the image correct?
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14:37
<muppis>
bieb, noep. Just reboot the client.
14:37
<Hyperbyte>
bieb, 1st, correct, 2nd, nope.
14:37
alkisg!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!11111111111111111
14:38
<alkisg>
Hi Hyperbyte - by the pool, so won't be online for long :)
14:39
<Hyperbyte>
Quick question then before you drop your laptop in the water!
14:39
<Pecker>
sup people
14:39
<alkisg>
Hyperbyte: shoot :)
14:39
<Hyperbyte>
On fat clients (ltsp-pnp), the /tmp dir is 512MB tmpfs
14:40
How can I make this, say, oh, 2 GB?
14:40
<bieb>
alkisg: waterproof keyboard?
14:40
<alkisg>
Hyperbyte: that's made by Ubuntu, not by LTSP, I think tmpfs by default uses half of the client RAM
14:40
<Hyperbyte>
Oh and also - where is tmpfs space actually coming from? Is it stored in RAM memory?
14:40
<muppis>
tmpfs uses ram as long it can, then expands to swap.
14:40
<alkisg>
bieb: hehe, unfortunately not... GLURK... whoops... need to wipe it... :P
14:41
Hyperbyte: what muppis said :)
14:41
<muppis>
IIRC, tmpfs leaves 1/4 free atleast.
14:41
<bieb>
alkisg: lol
14:41
<Hyperbyte>
muppis, really? So when you type mount and it says tmpfs mounted on /tmp, size 512MB that isn't actually the size?
14:41
<alkisg>
Hyperbyte: so basically you shouldn't care about tmpfs, and if the default 512MB swap isn't enough for you, just increase it
14:42
<muppis>
Hyperbyte, yes.
14:42
<alkisg>
tmpfs grows dynamically
14:42
(up to the max)
14:42
<Hyperbyte>
Are you guys sure? Because I'm using recording software to record raw audio (Audacity)
14:42
And it stops after ~50 minutes of recording, which equals around 500 MB data
14:42
<alkisg>
Hyperbyte: although in my real system, /tmp isn't a tmpfs, /run is though
14:43
<Hyperbyte>
And it's not running out of memory (it has 2GB, not running out of swap either)
14:43
<alkisg>
So maybe your recording software tries to do something fancy?
14:43
<muppis>
Hyperbyte, only unsure how much it leaves free, but sure it doesn't eat all and expands to swap.
14:43
<Hyperbyte>
alkisg, it's regular Audacity. I think it's just running out of resources.
14:44
<bieb>
Hyperbyte: I can ssh with both test accounts
14:44
<Hyperbyte>
Let's say for the sake of science I'd want to make it say 1 GB instead of 512 MB. How would I go about doing that?
14:44
<muppis>
man tmpfs ;)
14:44
<alkisg>
Hyperbyte: it sounds to me like it's using NBD swap, not tmpfs
14:45
So, increase NBD swap to e.g. 2 Gb and see if it helps
14:45
grep tmp /proc/mounts in the client would help
14:45
And du/ls on the server /tmp/nbd-swap
14:45
<Hyperbyte>
alkisg, the machine has 2 GB memory, 700 MB used, 1 GB swap, 0 MB used at the moment Audacity stops.
14:46
muppis, fail. It has no manpage.
14:46
<muppis>
Sounds like it uses swap and only half of it.
14:46
<alkisg>
If audacity forces swap usage instead of ram/tmpfs/whatever, then the swap is the problem
14:46
What's the swap size? The default is 512 mb normally...
14:46
<Hyperbyte>
Hrm, could be 512 MB
14:46
<muppis>
:D
14:46
<alkisg>
grep tmp /proc/mounts etc
14:47
<Hyperbyte>
Not at the radio station at the moment
14:47
How do I increase the nbd swap size?
14:48
Because right now our deejays are recording 2x 30 minute files and I get to paste them together. That's gonna grow old really fast. :)
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14:51
<Hyperbyte>
Looks like there's NBD_SWAP_THRESHOLD=800 in the ltsp source code. Where does it get the 512 MB default from?
14:56
<bieb>
Hyperbyte: the odd thing is in that pastebin from yesterday.. it accepts the user's password and authenticates them... it then opens a session.. then subsystem request sftp by user.. that where it disconnects
14:56
<Hyperbyte>
bieb, that's sshfs, which is used for mounting the homedir of the user on the client.
14:57
<bieb>
Hyperbyte: ok.. a permissions error?
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15:06
<Pecker>
can someone hilight me a second?
15:09
<bieb>
Pecker: hi
15:10
<Pecker>
hmm
15:10
<alkisg>
Hyperbyte: /etc/nbdswap.conf, SIZE=2048
15:10
bb in 2 days :)
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15:44
<blakes>
Still having trouble with booting thinclient on 12.04. This problem is related to nbd and busybox reporting: Failure: Insufficient information to set up nbd, quitting (nbdroot=:ltsp_i386, host=192.168.0.254, name=ltsp_i386, port=,nbd-device=). Any advice out there?
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15:51
<||cw>
blakes: it's missing the port and device name? which is odd... I don't know how to debug that one
15:56
<blakes>
That's what I thought too... i have tried to add that parameter to the nbd-server/conf file but it didn't work.
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16:33
<blakes>
I know it sounds like i am begging... at this point not too proud to beg. Still can't crack this nut of thin client on 12.04 not booting. This problem is related to nbd and busybox reporting: Failure: Insufficient information to set up nbd, quitting (nbdroot=:ltsp_i386, host=192.168.0.254, name=ltsp_i386, port=,nbd-device=)
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16:57
<||cw>
blakes: care to post your lts.conf on a pastebin? I can compare to mine
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16:59
<blakes>
||cw: http://pastebin.com/HztMy51B
17:04
<||cw>
hm. I have SERVER= in mine, really the only difference.
17:04
is this a new clean install?
17:04
<blakes>
Nah... its an upgrade from 10.04
17:05
<||cw>
there were many changes from 10.04. did you upgrade the chroot install too?
17:05
<blakes>
server=what? is that ltsp server?
17:05
<||cw>
yes
17:05
I don't recall why i added it, think maybe i had a thin client with an issue
17:06
<blakes>
and yeah, I did the chroot install, build and update client all night last night in as many ways as possible
17:06
<||cw>
so upgraded server, new clean chroot?
17:07
<blakes>
I don't think i am getting to the point where it is actually loading the image. It's an nbd problem....
17:07
server is upgraded, clean chroot, installed dnsmasq as directed.
17:09
<||cw>
any harm in purging ltsp from the server and reconfiging it from scratch? I know there were a lot of changes. I have no experience with upgrades though
17:09
<blakes>
in the previous version, the system used ltsp-server-standalone, ics-dhcpd and NAT. dnsmasq replaced all that according to what I read. so being a good little follower....
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17:09
<blakes>
Yeah... this is a live system for a school.
17:09
<||cw>
but in general, I've 2 out of 2 12.04 upgrades fail horribly, non-LTS's
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17:10
<||cw>
dnsmasq is awesome. I don't think that's the issue since you're getting tftp to the client
17:10
<blakes>
YAY! I do have a dump of 10.04lts... maybe I should start boning up on my restore skills
17:12
There is a bit of funk about the way the former admin set up the network cards... they are "unmanaged". so dnsmasq won't let me change resolv.conf and so on.
17:12
<||cw>
in your pxelinux.cfg, what's hte append line for your thin clients
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17:14
<blakes>
append ro initrd=initrd.img quiet nbd_proxy=false nbdroot=:ltsp_i386
17:14
IPAPPEND 3
17:16
Know of any good examples of /etc/network/interfaces for a two NIC setup.
17:17
heres another thing. When I add the line (as suggested in some quarters) boot=nbd_ltsp the thin client does a total kernel panic and crashes.
17:17
coffee's ready.brb
17:19
<||cw>
I have nbdroot=10.212.1.38:2000
17:19
so that's probably it
17:21
<stgraber>
nbdroot=IP:PORT is for the inetd-spawned nbd, that syntax isn't supported in 12.04 and 12.10 (well, probably still kinda work, but the ltsp tools don't expect it to exist anymore)
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17:24
<blakes>
stgraber: I did try that config
17:25
What do you think about taking down the nbd server and returning to the inetd.conf type set up?
17:25
<stgraber>
blakes: it might work, though don't expect it to work indefinitely as LTSP upstream is getting rid of that from the scripts
17:26
blakes: FWIW I tried a clean 12.04 install yesterday and everything just works (using isc-dhcp-server, tftpd, nbd-server, ... the default stuff)
17:27
<blakes>
Ok... I'm game.... let's talk about a strategy to restore home directories on a from.scratch.server
17:29
maybe backup /etc/passwd & /etc/shadow, then pull the drive mounted on /home, then install 12.04 from scratch, then restore the passwd/shadow files then install and remount /home?
17:32
stgraber, can you pastebin your /etc/network/interfaces (assuming that you are using a machine with two NICS)?
17:35
<stgraber>
blakes: http://paste.ubuntu.com/1147245/
17:37
blakes: you could probably go with something along the lines of (after backing up the relevant files): remove all of /opt/ltsp, remove all of /var/lib/tftpboot/ltsp, remove all of /etc/nbd-server, apt-get remove --purge ltsp-server ltsp-server-sandalone nbd-server tftpd-hpa
17:37
blakes: then apt-get install ltsp-server-standalone and run ltsp-build-client, then restart /etc/init.d/nbd-server
17:37
that should get you back on the supported isc-dhcp-server + tftpd-hpa with a clean config and chroot
17:37
<blakes>
ooooo that's good.
17:40
bounce this back to me: since the old admin did a funky network config (unmanaged) something is making port 2000,2001 unavailable. changing to textbook config might help.
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18:02
<elias_a>
blakes: So you got tired of sleep-walking upside down and woke up? :P
18:04
<blakes>
Actually (and this may be unfamiliar to you) a good looking blonde came into my office and enticed be to dinner.... it made me forget to log out.
18:05
^^enticed me to^^
18:06
<elias_a>
blakes: Dude, women are really dangerous sometimes... :P
18:06
Actually it is not that unfamiliar to me...
18:07
In my case she's brunette.
18:07
<blakes>
That's why I married one ;)
18:07
<elias_a>
And I call this brunette my wife ;-)
18:07
<blakes>
So got anything to add to this f*ing nbd issue that was keeping me awake?
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18:18
<mikec>
hey all. i'm now able to boot and log in, but after entering my password I'm getting a "Failed to load session "Ubuntu"" message, and when I click ok on it, the client just reboots. In the syslog of my cluster's root server, i see Aug 14 13:10:02 <severname> nbd_server[1187]: Can't open authorization file (null) (Bad address).
18:18
any ideas appreciated!
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18:53
<mikec>
on the thin-client, i log into the image and check the syslog and see kernel: [14.687863] nbd9: unknown partition table
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19:13
<muppis>
mikec, normal. Can be ignored.
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19:26
<mikec>
ok, then i suppose that doesn't define my problem. I wonder how I can troubleshoot the pop up message that says Failed to load session "Ubuntu"
19:27
I'm following these instructions https://help.ubuntu.com/community/UbuntuLTSP/LTSP-Cluster
19:29
<muppis>
Does that pop up come whe trying to log in?
19:30
*when
19:30
<mikec>
yes, right after i enter my password
19:30
im using 12.04 LTS for both the root and app servers
19:32
<muppis>
Try to select different session from Preferences -menu. If that helps, then you're propably missing Unity, which defines Ubuntu -session. But I'm not familiar with cluster, so I don't know where to install that.
19:33
<mikec>
All it gives me are Default and Failsafe xterm
19:33
not sure what the sessions are all about - didn't appear in any documentation
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19:34
<blakes>
Sessions are the windows manager. Xterm will give you a BASIC xwindows environment and should tell you whether or not the nbd server is dishing out its device properly
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19:36
<muppis>
mikec, what I read from that cluster howto, you should got ubuntu-desktop -package installed in application server and that package depends from unity.
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20:06
<mikec>
ubuntu-desktop is installed on the application server. but here could be another clue: when looking at the terminal logs for the cluster, its showing that the client's appserver is the same ip address as the root server
20:06
so its not reporting the correct application server ip
20:07
however, in /etc/ltsp/lbsconfig.xml, I have the proper IP address listed
20:10
x-session-manager[30726]: WARNING: Session 'ubuntu' runnable check failed: Failed to execute child process "/usr/lib/nux/unity_support_test" (No such file or directory)]
20:12
and i dont have ubuntu-desktop installed on the root server, so if its looking to use the root server as the application server, this error would make sense
20:12
so perhaps the problem is that my cluster is not using the application server (i only have one at the moment)
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20:26
<muppis>
mikec, you're on track. :) Now need to find why it doesn't find your application server or tries to use root as one.
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20:34
<mikec>
is it simply lbsconfig.xml that causes ltsp cluster to find its app servers? or are there other places to look?
20:35
the lbserver log has a lot of these entries: code 400, message Bad request syntax ('getkey')
20:36
"getkey" 400 -
20:37
<blakes>
stgraber. You ROCK!! I followed your directions 1) made a back-up. 2) removed /opt/ltsp & /var/lib/tftpboot/ltsp & /etc/nbd-server. 3) apt-get remove --purge ltsp-server ltsp-server-sandalone nbd-server tftpd-hpa 4)apt-get install ltsp-server-standalone 5) ltsp-build-client 6) service nbd-server restart
20:37
<||cw>
I kinda sorta hinted at that this morning....
20:38
<blakes>
The tftp server from dnsmasq wasn't working, so I reinstalled tftpd-hpa and POOF!
20:38
thanks to you too ||cw!
20:39
<||cw>
you shouldn't be able to even get to where it complains about nbd without tftp working
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21:02
<elias_a>
blakes: Congrats! :)
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22:03
<igor__>
Hi. Is there a way to run LTSP on AWS?
22:04
<jocarter>
short answer: not really
22:05
<igor__>
What/s the reason? I see that Windows Terminal server is available as an AMI
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22:09
<jocarter>
you could start an application server on AWS, can't boot from it though, which is core to LTSP
22:10
otherwise you might actually want something like nx of x2go
22:12
<muppis>
And you will need a good syncronous internet connection to keep it usable.
22:13
<igor__>
I'm trying to understand why is a Terminal server on public cloud impossible / bad idea.
22:14
<muppis>
Mostly its not usable.
22:15
<igor__>
Why? Performance due to bandwith?
22:16
<muppis>
Yes and in LTSP case, it loses point when you need get machine booted somehow to connect outside of lan.
22:16
<igor__>
The thing is I'm building an enterprise application. I don' want it to be a windows application which needs to be installed locally. So I see two options: web and a terminal server.
22:17
<muppis>
I know there are routers that are capable to server dhcp and tftp via dnsmasq.
22:17
<igor__>
Are you familiar with Bloomberg terminal?
22:19
As I understand it tftp is not very secure. This is a deal breaker for me because the clients are financial services
22:21
<muppis>
Tftp is used only during kernel load so it's no really matter in view of security.
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22:22
<jocarter>
igor__: windows terminal clients that boot over the network also uses tftp. but it sounds like your machines already boot some system, so you might want to look into NX.
22:25
<igor__>
Thanks guys. I'll check out nx and x2go
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