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


Channel log from 26 April 2013   (all times are UTC)

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06:51
<ltspuser_31>
hi, can i serve windows desktop inviroments on ltsp
06:52
<alkisg>
Yes
06:53
<ltspuser_31>
thank you
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07:16
<ltspuser_38>
i asked about the windows desktop inviroment on LTSP, will the usb and serial ports on the local pc be useable.
07:18
if i do work at home and save it on a usb can i access it on thye client pc from the usb
07:23
<alkisg>
Yes. Also, type /j nickname to set a name so that we can remember you for future questions.
07:23
xfreerdp does support filesystem forwarding...
07:23
Google for xfreerdp for details
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07:54
<ltspuser_38>
Ok did some reading and it points to allowing a usb from the server.
07:55
I have a java app that sends a signal to a serial port for recording on the local pc
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08:51
<highvoltage>
/win 16
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08:58
<ltspuser_19>
hi
09:00
i'm testing ubuntu as ltsp server, and i would like to know if there's some kind of software client to conect from a desktop to the ltsp server (as if it were booted from pxe)
09:00
anyone knows if this is possbile?
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10:05
<lifeboy>
I have replaced isc-dhcp-server with dnsmasq on Ubuntu 12.04 LTSP, but I'm not getting a lease on the clients. The PXE boot and just report "no dhcp offers received". Anyone that uses dnsmasq on LTSP that has some advice? I'll post the config in pastebin now and send the url
10:07
ltspuser_19: Do you want to test your booting process via some software client to check if your config is correct?
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10:21
<lifeboy>
My config files are here http://pastebin.com/pjvqH3kn
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10:22
<ltspuser_30>
hi, this is previous ltspuser_19
10:23
(my browser crashed...)
10:23
lifeboy: i would like to use pxeclient and also connect from full desktops as MS-RDP does
10:37
<lifeboy>
Hmm... I think maybe your mixing two different technologies. PXE boot starts a thin client (or far client if you choose) over the network on some hardware client and then starts a session on the server. If you want to start a client session on the server without a thin client have a look at nxserver (nomachine.com). It's very fast and does what MSRDP does for a windows server on a Linux server or desktop
10:37
sorry, "you're mixing"...
10:37
<ltspuser_30>
oh, you're right
10:37
i didn't take into account nxmachine
10:38
i'll try, it's possible some kind of integration between them?
10:38
i.e. a user using the two methods, will see same desktop and files?
10:39
<lifeboy>
You can configure a thin client to also use nxclient to connect. This will give you a recoverable session should the client loose power for example. But I can't tell you how to configure that. Alkisg or some of the masters here may be able to help?
10:40
<ltspuser_30>
ok, thanks, i'll start to test by myself
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11:36
<ltspuser_66>
hi, i have to prepared some recommended configuration and have some questions. 1) Is it possible to limit login time for particular user? 2) how to clean all user data at logoff (configuration as fat client)?
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12:43
<lifeboy>
I have replaced isc-dhcp-server with dnsmasq on Ubuntu 12.04 LTSP, but I'm not getting a lease on the clients. The PXE boot and just report "no dhcp offers received". My config is here http://pastebin.com/pjvqH3kn
12:44
Anyone that has experience with dnsmasq and LTSP?
12:45
Also, how can I test my config without physically driving out to the site (remote rural) and turning a thin client on and off? Is there some software method?
12:46
Maybe an tool that requests an ip (without killing my servers ip in the process!)
12:46
eh, "a tool"...
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13:20
<alkisg>
lifeboy: sudo /usr/lib/klibc/bin/ipconfig -n eth1
13:20
From your server (-n ==> no action)
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16:01
<unkmar>
vagrantc: welcome back
16:02* vagrantc waves
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16:02
<vagrantc>
unkmar: how's LTSP been treating you?
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16:03
<unkmar>
pretty good, tweaking away. Looking for a change in the login. It asks for user name. Would be great to have a clickable list. They'll still use separate passwords.
16:03
Also, looking from the global version of .xsessionrc for lightdm
16:05
<vagrantc>
no way to display users
16:05
oh, using lightdm?
16:05
<unkmar>
cause they don't exist. :?
16:05
yeah, apparenlty using lightdm. Went with lxde for now.
16:06
The boss is happy. so... I'm happy. :)
16:06
<vagrantc>
with libpam-sshauth?
16:06
<unkmar>
good question. how do I check that?
16:06
<vagrantc>
the new lightdm+libpam-sshauth stuff is pretty experimental
16:07
<unkmar>
I noticed that I don't really see much under the user folder. /home is invisible apart from the logged in /home/user
16:07
<vagrantc>
did you need to do a bunch of manual tweaking of /opt/ltsp/<arch>/etc/pam.d and such?
16:07
sounds like you're using LDM, which has been around longer
16:08
<unkmar>
no... My tweaks are all Desktop based. xrandr to disable DVI.
16:08
<vagrantc>
should be able to do xrandr stuff from lts.conf
16:08
unkmar: you're familiar with the ltsp-docs package?
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16:09
<vagrantc>
that includes a manpage for lts.conf, and a PDF that describes a lot of the general LTSP concepts
16:09
<unkmar>
okaxinit /usr/share/ltsp/xinitrc /usr/sbin/ldm so yeal. ldm
16:09
<vagrantc>
looking at running processes?
16:09
<unkmar>
any chance I can avoid the pdf?
16:10
yep.
16:10
<vagrantc>
avoid?
16:10
<unkmar>
I greatly dislike them with a passion.
16:11
<vagrantc>
there's also an .html version
16:11
in the same package
16:12
like all documentation, it isn't perfect, some of it is a little out of date, but it gets the vast majority
16:15
<unkmar>
I feel the documentation for one of my projects is perfect. However, it is about the only documentation I have ever written and am likely ever to create.
16:15
Docs are hard.
16:15
I should say, authoring docs is hard.
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16:19
<unkmar>
Sweet, that'll make my work a lot easier. Thanks for the self-help.
16:40
Is all the work happening on the server?
16:43
<vagrantc>
with a thin client model, mostly, yes.
16:43
with a fat client model, mostly the opposite
16:44
<unkmar>
so, in my setup. it should be mostly just pulling files and running on the client.
16:44
<vagrantc>
the homedirs are by default using sshfs, so there's some overhead there
16:44
but with a fatclient, the server is essentially an authentication and file server.
16:45
<unkmar>
I've noticed that. I will not be going unencrypted.
17:10
<lifeboy>
alkisg: sudo /usr/lib/klibc/bin/ipconfig -n eth1
17:10
IP-Config: eth1 hardware address 5c:f3:fc:4e:da:a6 mtu 1500 DHCP RARP
17:10
What do I do with this?
17:11
Does this mean that DHCP and RARP are "listening" on eth1?
17:17
alkisg: I do not recall changing anything, but at 14:29 there suddenly was dhcp activity. I amended the pastebin at http://pastebin.com/pjvqH3kn
17:18
I looks as if a dhcp address was assigned to a thinclient requesting it?
17:22
<unkmar>
help. I have a machine that keeps sticking at 192.x.x.44. It has been reassigned at the router to 192.x.x.222 and won't move even after reboots.
17:25
I don't even know where to look.
17:26
I've caused the router to dissallow that IP and.... now the system won't boot. WHY did it stick. Dynamic IP's are suppose to be *dynamic*
17:28
the server hasn't moved. The client refuses to move.
17:30
Holy freaking cow. I couldn't possibly imagine that THIS would happen.
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17:32
<workingcats>
unkmar, dynamic just means they are dynamically configured at ifup time.. all dhcp servers i've ever used defaulted to re-assigning the same IP to each client as it last had
17:33
even had ISPs do that
17:34
<unkmar>
That typical response only happens to a certain point.
17:35
<workingcats>
oh also linux at least remembers the last IP it was assigned and then asks for that again
17:36
by linux i mean dhcpcd i think. in any case, i think there's a file somewhere in var that you'll have to delete
17:36
http://linux.die.net/man/5/dhcpd.leases check this file just to be sure (that's server-side tho)
17:38
on the client it could be this file. it'll be something similar. if what i wrote is even your problem.. not sure about that. /var/lib/dhcp/dhclient.leases
17:38
<kev_j>
From what I have been told the default is to assign by mac address and change only if another computer occupies that ip the next time it asks for it
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17:47
<unkmar>
I still haven't found what I'm looking for.
17:49
This is an insane glitch.
17:50
it has booted again. but is STILL at 44
17:51
somehow the ltsp install has assigned that IP address to that MAC forever.
17:52
I don't know where. It isn't at the DHCP, because my dhcp is on a separate machine. It is tftp, ltsp, or nfs.
17:53
Logically thinking. It can't be at nfs. so.. that leaves tftp and/or something about the ltsp install.
17:54
if I didn't have many redundnat gigs of data stored on the drive already. I'd do a grep of the entire drive.
17:54
<alkisg>
unkmar: what's the output of `cat /proc/cmdline` locally on the client?
17:55
lifeboy: you can try `ipconfig -n eth0` from another workstation to check that your server answers, it should then produce details about what the server returns
17:56
<unkmar>
alkisg: ro initrd=initrd.img-3.2.0-4-amd64 init=/sbin/init-ltsp quiet root=/dev/nfs ip=dhcp boot=nfs nfsroot=192.168.3.227:/opt/ltsp/amd64 BOOT_IMAGE=vmlinuz-3.2.0-4-amd64 BOOTIF=01-d0-27-88-5e-71-35
17:56
<alkisg>
OK, so no static ip in the command line
17:58
unkmar: debian/which version/fat chroot?
17:58
<unkmar>
wheezy, lxde, so It should be fat.
17:59
<alkisg>
ls /usr/share/xsessions locally on the client, gives results?
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18:00
<alkisg>
And, isc-dhcp on the server, or dnsmasq?
18:00
<unkmar>
several *.desktop files. LXDE, lightdm, openbox, openbox-gnome.
18:00
<alkisg>
Finally, try this locally on the client, as root: /usr/lib/klibc/bin/ipconfig -n eth0
18:00
And check if it still gets offered the bad ip address...
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18:01
<unkmar>
alkisg: AFIK, I can't root on the client.
18:01
<alkisg>
!screen_08
18:01
<ltsp>
screen_08: To get a root shell on a Debian thin client, put SCREEN_07=ldm, SCREEN_08=shell and SCREEN_DEFAULT=07 to lts.conf.
18:02
<alkisg>
(or unlock the root password in the chroot)
18:02
*set a root password...
18:02* vagrantc prefers setting SCREEN_08
18:05
<unkmar>
the ipconfig command shows the ip I want it to use.
18:05
<vagrantc>
ip addr shows the ip you don't want it to use?
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18:06
<unkmar>
it shows what I *DO* want.
18:06
<vagrantc>
no, "ip addr" ?
18:06
not ipconfig
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18:07
<vagrantc>
or "ifconfig"
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18:07
<vagrantc>
unkmar: ??
18:07
<unkmar>
That's been bugging me. Why can't I run ifconfig?
18:07
<vagrantc>
unkmar: /sbin/ifconfig ?
18:08
<unkmar>
ip addr show what I *DON'T* want.
18:08
<vagrantc>
ok.
18:08
<unkmar>
vagrantc: /sbin/ifconfig doesn't work in the clients. :(
18:08
<vagrantc>
unkmar: you're using dnsmasq?
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18:09
<unkmar>
it simply isn't there.
18:09
<vagrantc>
unkmar: and this is on a shell on tty8, with SCREEN_08=shell from lts.conf ?
18:09
<unkmar>
I'm using a separate pfsense box.
18:09
vagrantc: i didn't do it that way. I unlocked root.
18:09
<vagrantc>
oh.
18:10
wow. ifconfig is finally obsoleted.
18:10* vagrantc cheers on "ip"
18:10
<unkmar>
finally? so it goes away? so, Now i get to learn something else. Nice :( I didn't even know about ip addr until today.
18:11
<vagrantc>
you can still install it if you really want
18:11
<unkmar>
eh, progress marches on.
18:11
I'll always need to know what is *default*
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18:12
<unkmar>
even if that continues to be magically moving target.
18:12
<vagrantc>
iproute2 has been a transition in progress for well over a decade ... so it didn't happen overnight, anyways...
18:13
unkmar: only thing i can think of is you have another dhcp server on your network somewhere.
18:14
unkmar: or the pfsense box is caching dhcp in weird ways...
18:14
<unkmar>
ah, holy. laksdf;lkjdfl;dfkjasdlk;fjkl kl;dajkl;dfasjklasdfjkl;dsf.
18:14
Not you guys.
18:14
I rebooted the pfsense box.
18:14
<vagrantc>
unkmar: old versions of isc-dhcp gave out different ip addreses to different parts of the process...
18:14
unkmar: fixed?
18:15
<unkmar>
Its possibly one of the freaking wireless routers.
18:15
<vagrantc>
highly likely.
18:15
<unkmar>
I don't have access to those things yet. The should be set with dhcp off but.. .you just never know.
18:17
<lifeboy>
Alkiskg: thanks for the explanation. I have no other machines on the network, everything is a thin client, but I'll wait till Monday morning when someone will be in the office to test it again.
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18:21
<unkmar>
Okay, so I'm not behind that thing.
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18:29
<unkmar>
It isn't the other routers. I'm back to ... How in the heck is it sticking to a specific IP?
18:30
It gets the .222 at boot. pulls the pxelinux.0 file, begins to boot and I get, IP-Config: no response after x secs - giving up
18:31
something, somewhere in the tftp, nfs, or ltsp setup has locked the mac to the initial .44 ip address.
18:33
after a 100 seconds it Kernel panics - not ysncing Attempted to kill init!
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18:38
<alkisg>
unkmar: some dhcp servers consider the same client as seperate clients, if they give different client IDs in dhcp requests
18:38
So it's possible that a dhcp server gives one ip at the PXE dhcp request,
18:38
and another at the initramfs (ipconfig) dhcp request
18:38
So if you only reserve 1 IP for that client, the second one will be denied
18:39
Because it's still leased by the pxe dhcp request...
18:41
<unkmar>
alkisg: the problem is that I feel confident that yet another install will allow me to use the IP I have set at the DHCP router.
18:42
Which means. I sincerely believe the problem lies in the ltsp, tftp, nfs configuration.
18:42
Or in this case. More like autoconfiguration.
18:48
vagrantc: what about dnsmasq?
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19:01
<vagrantc>
neither ltsp, tftp nor nfs set the ip address.
19:01
unkmar: are you running it on the LTSP server?
19:01
unkmar: dnsmasq, that is.
19:01
<unkmar>
nope
19:02
<vagrantc>
unkmar: would it be possible to just set up your LTSP server as the DHCP server, and use a separate network for thin clients?
19:02
<unkmar>
no
19:03
<vagrantc>
it seems like you're struggling very hard to not use a default configuration
19:03
it *should* be possible, and it probably is, but there are a lot more unknowns
19:04
<unkmar>
I don't see a valid reason to circumvent the pfsense box and put the ltsp clients outside my network.
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19:04
<vagrantc>
unkmar: if you've got the time to spend figuring it out...
19:05
unkmar: you've managed to encounter bizarre issue after bizarre issue that just don't tend to come up often...
19:05
i suspect it's because of some unusual network configuration
19:06
<unkmar>
Let me put it another way. I will handy gui control using a gimpy by hand installed dhcp/dnsmasq combo that is rigged specifically for one purpose. LTSP.
19:06
*I will lose.*
19:07
<vagrantc>
?
19:08
<unkmar>
configuring pfsense via web browser is handy and like any other router.
19:08
Configuring dnsmasq and the like by hand with the port forwarding I need for OTHER services is unreasonable.
19:09
The closest thing to a viable option thus far provided has been double-NAT. Which I find utterly ridicolous.
19:10
double-NAT has its own problems I wish to avoid.
19:11
<vagrantc>
yeah, i wouldn't suggest putting NAT behind it...
19:12
unkmar: you could also try with IPAPPEND=3 in update-kernels.conf
19:12
<unkmar>
no, you are suggesting putting it behind a NAT>
19:12
<vagrantc>
unkmar: then it wouldn't get a second DHCP request
19:12
<unkmar>
and itself IS a NAT.
19:12
<vagrantc>
unkmar: i was not suggesting putting it behind a NAT, no.
19:12
unkmar: you can route between private networks without NAT
19:12
<unkmar>
then you were suggesting replacing my NAT and that is unreasonable.
19:13
<vagrantc>
you are making assumptions about what i am saying without understanding it and calling it unreasonable.
19:13
<unkmar>
NOW, I am at a complete loss. something else wierd happening now.
19:14
<vagrantc>
unkmar: using IPAPPEND=3 might work around your DHCP problems, regardless.
19:14
<unkmar>
Good news is that the error must not be in the LTSP setup.
19:20
It has an IP it isn't allowed to have.
19:20
It seems to like having IP's it isn't suppose to use.
19:22
Does the thing have an allergy to upper ip's
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19:26
<unkmar>
is the freaking thing showing to MAC's?
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19:32
<unkmar>
where does the ipappend=3 go?
19:32
That appears to be exactly my issue.
19:33
<vagrantc>
unkmar: in update-kernels.conf
19:34
unkmar: or /opt/ltsp/<arch>/etc/ltsp/update-kernels.conf
19:34
unkmar: and then: ltsp-chroot /usr/share/ltsp/update-kernels
19:34
unkmar: followed by: ltsp-update-kernels
19:35
if you just want to tweak <tftpdir>/ltsp/<arch>/pxelinux.cfg/default manually, you can, but your changes will be obliterated next time ltsp-update-kernels runs.
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19:36
<unkmar>
so, just like I have CMDLINE_NFS="asdfsdf" I have IPAPPEND=3.
19:37
<vagrantc>
unkmar: yes.
19:38
you may need to add it, alkisg convinced me not to include it in the default config file, but i've since regretted not including it by default.
19:38
<unkmar>
yeah, because it is effectively assigning itself a random IP. IP's it shouldn't get and definately shouldn't be gettinf from the DHCP server.
19:39
I have .15 assigned to another MAC in the dhcp server.
19:39
it took it.
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19:41* vagrantc still suspects another DHCP server on the network
19:42
<vagrantc>
it has all the signs...
19:42
<unkmar>
the IPAPPEND=3 fixed it.
19:42
<vagrantc>
that only takes the DHCP request you get for network booting
19:42
and re-uses it
19:42
so it doesn't make a second DHCP request, which might come in with insufficient information
19:43
(or a different IP address)
19:43
<unkmar>
Yeah, and it appears to be doing BOTH.
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19:43
<vagrantc>
unkmar: i'd turn off your pfsense DHCP server and see if you get DHCP responses from something else.
19:44
unkmar: as a troubleshooting step
19:44
unkmar: good luck
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19:59
<unkmar>
I'm trying to launch icedove at login for ALL users. so I'd rather not use .xsessionrc
20:01
My attempts in rc.d cause things to launch as root.
20:01
When I use sudo -u. they either aren't launching are aren't visible.
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20:12
<unkmar>
I'm trying to launch icedove at login for ALL users. so I'd rather not use .xsessionrc per user.
20:12
<vagrantc>
try /etc/xdg/autostart ?
20:16
<unkmar>
apparently that runs as root
20:17
<vagrantc>
only if you log in as root... ?
20:26
<unkmar>
I stand corrected. it just doesn't run or isn't displaying or something like that.
20:26
<vagrantc>
hm.
20:27
<unkmar>
or it requires those fancy .desktop files
20:27
<vagrantc>
yeah, you need to use a .desktop file
20:28
unkmar: i'd try symlinking to /usr/share/applications/icedove.desktop
20:28
though it might require some special flags or something
20:31
<unkmar>
I give up until monday. No, that didn't work.
20:31
Have a nice weekend.
20:32
I didn't have to come in today. And at this point, I wish I hadn't
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20:53
<baiki>
hi. got PAE CX8 CMOV error. Used i386. Help?!?!?
20:53
oh. its an VIA C3 eden chipset
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20:56
<muppis>
Missing PAE support from CPU. Which distro trying to use?
20:56
<baiki>
muppis: ubuntu 12.04.2 32bit
20:57
<muppis>
Afaik, PAE is required in 12.04, so you hardware is just too old. Sorry.
20:58
Try older release, like 10.04.
20:58
<baiki>
muppis: thanks... and now HAIR PULLING!!!
20:59
muppis: is there now way just to get an older kernel for this ltsp chroot?
21:00
<muppis>
It's possible, butt might be tricky. I've done it once in local install, not in ltsp.
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21:02
<baiki>
muppis: well then, i guess i download 10.04 :-) thanks a bunch
21:03
<muppis>
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/comments/84
21:04
<alkisg>
baiki: you can install linux-image-generic in the chroot
21:04
12.04 does have a non-pae kernel
21:04
But note that -pae is a different thing from cmov support
21:05
<muppis>
cmov can be where your things stops next.
21:05
<alkisg>
There's a non-pae kernel in 12.04, but there's no support for processors that don't support the cmov instruction
21:05
<baiki>
ok
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21:05
<baiki>
muppis: alkisg: i download now ubuntu 10.04.4 alternate
21:07
<alkisg>
baiki: either that, or install a debian wheezy chroot in your 12.04 ubuntu server
21:07
debian wheezy does support processors without the cmov instruction
21:07
And its ltsp version is recent enough to cooperate with 12.04 servers...
21:09
<baiki>
alkisg: oops, server already formatted. but i will try wheezy if other solution fails...
21:10
<alkisg>
https://wiki.ubuntu.com/MaverickMeerkat/ReleaseNotes#Linux_kernel_2.6.35 => "With 10.10 we have also dropped support for i586 and lower processors, as well as i686 processors without cmov support. "
21:10
So for Ubuntu, yeah 10.04 is the last one that supports cmov
21:10
<baiki>
i will see very soon....
21:10
<ltspuser_33>
I am trying to use a online flash based recording software with our 10.04 thin clients and can't get microphone to work, is there a work around?
21:13
google is not much help here. I see some stuff that indicates there may be problems with pulse and flash
21:13
I really need a pointer
21:13
working on this for days
21:14
<alkisg>
I'd first test to see if flash would work on this hardware with a local installation (or, browser+flash locally in the chroot)
21:15
E.g. I've seen flash using the wrong mic... (front vs real or external vs internal...)
21:15
...so troubleshooting flash + pulse problems AND possible remote pulse problems (=ltsp) together... sounds hard, taking them one at the time sounds easier
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21:16
<ltspuser_80>
alkisg: sorry I just got booted
21:16
I have flash and firefox installed locally
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21:17
<alkisg>
And, does the microphone work with that configuration?
21:17
<ltspuser_80>
sound plays fine. e.g.youtube but the microphone doesn't work
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21:17
<alkisg>
So, the problem isn't ltsp related, and it's not related to remote pulse either
21:17
<ltspuser_80>
yes, in sound recorder for instance
21:17
no problem
21:17
<alkisg>
==> better ask in #ubuntu, in #pulseaudio etc
21:17
Or in alsa, pulse mailing lists...
21:18
<ltspuser_80>
ok, however it works on my linux desktop which is not running ltsp
21:18
<alkisg>
Erm...
21:19
<ltspuser_80>
so I believe it's ltsp related in some way
21:19
<alkisg>
Your linux desktop is on the same hardware?
21:19
<ltspuser_80>
no it is not... i see your point
21:20
<alkisg>
Another quick thing to try, is putting SOUND=False in lts.conf
21:20
This disables all ltsp audio handling, and makes it like a "regular local installation"
21:20
<ltspuser_80>
ok, I'll try that
21:20
<alkisg>
I don't think it'll help, it'll just prove that it's not an ltsp problem
21:20
<ltspuser_80>
ok, makes sense
21:21
<alkisg>
And another thing to try, is to boot your linux workstation as an ltsp client
21:21
...and see if flash works there, if it does, then again ltsp isn't your problem
21:21
<ltspuser_80>
good idea!
21:21
keep them coming :->
21:21
<alkisg>
:)
21:26
<ltspuser_80>
ok, so setting SOUND=False didn't change anything
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21:27
<ltspuser_80>
I'll boot my work station as a tc
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