IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 22 April 2011 (all times are UTC)
| 00:42 | alkisg (~alkisg@ubuntu/member/alkisg) joined #ltsp. | |
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| 01:16 | Stefn (~Stefan@19.247-201-80.adsl-static.isp.belgacom.be) joined #ltsp. | |
| 01:30 | <Stefn> Is it possible to mount a cd-rom from the server in all my clients? I found something about ltspfs that should work? (I'm working with an Edubuntu 10.04 system)
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| 01:33 | <alkisg> If you mount it on the server, it is available to all the clients automatically
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| 01:33 | No need to do anything special for that.
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| 01:34 | ltspfs is for the opposite, to mount a cdrom on the client
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| 01:35 | <Stefn> that's strange, because when I try to run the program on the cd, my server will start it, but on the clients I get a "no cd found, please insert the cd"
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| 01:53 | <alkisg> Stefn: then the program doesn't look for the CD in the correct place
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| 01:53 | What program is that?
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| 01:54 | You're not using fat clients or kiosk or localapps, right? Just plain LTSP with thin clients?
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| 01:56 | <Stefn> yes, it's a school program
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| 01:56 | it's called fraxis
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| 01:57 | from dainamic software
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| 01:57 | and it are all thin clients
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| 01:59 | <alkisg> Put the CD on the server. Sit on a client. Open a terminal. And write: mount
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| 01:59 | <alkisg> What's the output?
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| 02:04 | <Stefn> http://pastebin.com/PWRaJZXA
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| 02:06 | <alkisg> /dev/sr0 on /media/SP1011 type iso9660 (ro,nosuid,nodev,uhelper=udisks,uid=1000,gid=1000,iocharset=utf8,mode=0400,dmode=0500)
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| 02:06 | So if you open nautilus to /media/SP1011, can you see the program?
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| 02:07 | (from the thin client)
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| 02:07 | <Stefn> yes, but I can't enter it
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| 02:07 | <alkisg> Ah, you need a different mode then
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| 02:07 | Try this, temporarily:
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| 02:07 | On the server
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| 02:08 | sudo umount /dev/sr0
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| 02:08 | sudo mount /dev/sr0 /cdrom
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| 02:08 | Then, on the thin client, try to enter /cdrom
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| 02:09 | <Stefn> that works
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| 02:10 | <alkisg> OK, if you need that to happen automatically, you need to modify the udev rules
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| 02:10 | You can ask about that in your distro channel
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| 02:10 | <Stefn> ok :), thank you very much!
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| 02:13 | <alkisg> Hmmm but true, that would be a common problem in LTSP, we need to at least write a how-to for it
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| 02:13 | I thought in previous Ubuntu versions, CDROMs were accessible by all users... I wonder if the udev rules changed in the meantime
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| 02:20 | udisks --mount /dev/sr0 --mount-options=umask=0000
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| 02:21 | That works without need for sudo. The problem seems to be in the default udisks parameters for CDROMs, and specifically umasks.
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| 04:31 | <Stefn> I'm getting a mount error, not authorized on my ltsp clients
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| 04:31 | I tried to add them to the cdrom group
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| 04:31 | but I still get the same error
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| 04:32 | is there another solution for that?
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| 05:09 | <alkisg> Stefn: are you talking about the same problem as before? That has nothing to do with the cdrom group.
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| 05:09 | <Stefn> the problem of this morning is solved
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| 05:10 | <alkisg> OK, what are you trying to mount and you're getting a mount error?
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| 05:12 | <Stefn> I have put the command you said this morning in my script, so that runs when I boot the program which should solve that problem
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| 05:13 | but now, when I put a cd in, al my clients tell me "mount faild: not authorized"
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| 05:14 | <alkisg> Which command did you put?
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| 05:16 | <Stefn> udisks --mount /dev/sr0 --mount-options=umask=0000
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| 05:18 | <alkisg> So. You put a CD in. It gets automatically mounted. Then you try to remount it?
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| 05:18 | Or you can udisks --unmount first?
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| 05:18 | Or did you put that udisks command in some udev rule?
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| 05:18 | Btw, again, all this isn't LTSP related
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| 05:19 | AFAIK the only way to change the default mask in udisks would be to change the following lines in devices.c:
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| 05:19 | static const char *iso9660_defaults[] = { "uid=", "gid=", "iocharset=utf8", "mode=0400", "dmode=0500", NULL };
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| 05:19 | static const char *udf_defaults[] = { "uid=", "gid=", "iocharset=utf8", "umask=0077", NULL };
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| 05:19 | If you put umask=0000 there, and recompile, then it'll automatically get the correct permissions
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| 05:20 | Try to file a bug report against udisks to make it configurable.
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| 05:20 | <Stefn> ok, I'll try it... sorry to put this in the wrong channel, but in most of the channels nobody seems to know how to solve this
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| 05:20 | <alkisg> Yes, it's possible that you don't find an answer in IRC
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| 05:21 | Try to file a bug report against udisks
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| 05:21 | Or send a mail in their mailing list
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| 05:22 | For now, as a workaround, you can use the command I pasted above
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| 05:22 | I guess you're missing an "unmount" in the script you wrote
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| 05:27 | <Stefn> ok, with the unmount option I'm not getting the error anymore
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| 05:27 | <alkisg> Here's a bug report about it, you can write there: https://bugs.launchpad.net/ubuntu/+source/udisks/+bug/682589
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| 05:27 | <Stefn> but umask 0000 is not allowed
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| 05:27 | <alkisg> Why?
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| 05:27 | Didn't you say it works fine if you do it manually?
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| 05:28 | <Stefn> yes, it did
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| 05:29 | it must be an error in my script then
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| 05:29 | I'll find it
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| 05:29 | <alkisg> Pastebin your script if you want
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| 05:31 | <Stefn> http://pastebin.com/wpaR3nei
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| 05:32 | <alkisg> Are you trying to make a script that any user will run, in order to launch the program?
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| 05:32 | <Stefn> yes
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| 05:32 | <alkisg> The way you wrote it, if 20 users run your script, they'll unmount/mount the CDROM 20 times
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| 05:33 | Clearly this isn't what you want
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| 05:34 | <Stefn> true, hadn't thought about that
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| 05:34 | <alkisg> And also, they'll try to run the program from the wine folder of user "klas-4". That doesn't sound right
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| 05:34 | Finally, you're missing a " at the end of the line,
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| 05:34 | And you have a $ there which also doesn't seem right
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| 05:34 | And you're missing the shebang, i.e. a line on top like this : #!/bin/sh
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| 05:36 | <Stefn> the line for the wine command isn't complete but, it works on the server, so that's not really a problem... and I read that the #!/bin/sh wasn't good when you wanted to make scripts usable on doubleclick
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| 05:37 | <alkisg> Erm, wherever you read that, stop using that site :)
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| 05:38 | <Stefn> :) I also thought it was weird, but since everything was working I didn't pay much attention on it
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| 05:38 | <alkisg> Also, with the default udisks settings, one user can't unmount the cdrom if another user mounted it
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| 05:39 | So those "unmount / mount" commands need to be issued by the same user that mounted the cd rom
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| 05:40 | <Stefn> I thought about putting the udisks commands in the rc.local files, so that they are executed on startup
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| 05:40 | should that work?
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| 05:40 | <alkisg> If this is about a specific cdrom, it might be easier to copy it to your hard disk and have it mounted in fstab
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| 05:40 | Or, if you only care about UDF disks, you can just create an fstab entry to allow any user to mount it
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| 05:41 | <Stefn> I tried to copy it to the HDD, but it's protected against that
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| 05:42 | <alkisg> It won't work in rc.local unless you always have that cd inserted while booting
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| 05:42 | And if you plan to do that, then it's better to just create an /etc/fstab entry
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| 05:44 | <Stefn> but like you said before, I can edit the lines in devices.c?
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| 05:44 | <alkisg> If you know how to compile, yes
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| 05:45 | `apt-get source udisks` gets you the source, then edit, then run `debuild -b -tc` to get a deb file
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| 05:45 | For details, google it, it's not that hard :)
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| 05:46 | <Stefn> ok thanks, I'll check that... sorry for al the stupid questions :)
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| 05:46 | <alkisg> Nah they're fine questions. It's just not the correct channel for them.
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| 05:47 | Make sure to comment on the bug report, it's your best chance for a proper solution in the future
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| 05:48 | <Stefn> well the problem is, I'm on an internship, so within a few weeks I'm gone here :)
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| 05:49 | <alkisg> Well, if you want others to help you, you should be helping others too
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| 05:49 | <Stefn> that's true, I'll do it :)
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| 05:49 | <gothaggis> i have a specific model of thin client that is not booting - they will get to the 'ubuntu' screen and then the screen goes blank. I had this problem before and I believe it was due to network card drivers. how do i remove the ubuntu splash screen to see a more verbose startup?
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| 05:50 | <alkisg> sudo gedit /var/lib/tftpboot/ltsp/i386/pxelinux.cfg/default => remove "quiet splash"
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| 05:50 | <gothaggis> thanks!
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| 06:36 | <jammcq> hello friends
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| 06:39 | <Hyperbyte> Hello there jammcq!
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| 06:51 | <jammcq> hey Hyperbyte
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| 08:16 | <gothaggis> what are the steps I need to do to figure out what network card my thin client has...and to install the driver on the LTSP server?
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| 08:26 | <muppis> vagrantc, sorry for disappearing last night, but now I made ubuntu-desktop-applications -metapackage based on ubuntu-desktop (removed xorg and gdm depency).
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| 08:27 | <vagrantc> muppis: now just need to get it into ubuntu :)
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| 08:27 | <muppis> It can be found at http://apt.muppis.net ltsp main (GPG: http://apt.muppis.net/gpg.key )
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| 08:28 | Oh, it misses last s from packagename.
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| 08:29 | <gothaggis> nevermind about the network driver stuff, figured it out...jme!
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| 08:32 | <muppis> vagrantc, it is quick draw, so it might have some odds. I though it could have metas for gdm and xorg to get them removed.
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| 08:36 | <vagrantc> muppis: seems like ubuntu-desktop could depend on ubuntu-desktop-applications + all the other cruft
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| 08:40 | <muppis> vagrantc, are you meaning we could have own set of application for ubuntu-desktop ?
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| 08:41 | <vagrantc> muppis: i think ubuntu-desktop in Ubuntu should be split into at least two packages.
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| 08:43 | <muppis> vagrantc, that's true.
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| 08:43 | <vagrantc> muppis: one that depends on all the applications (ubuntu-desktop-applications), and ubuntu-desktop should then: Depends: ubuntu-desktop-applications, xorg, gdm, etc.
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| 08:45 | <muppis> vagrantc, yes, I agree, but then, do they want to do that? To make one more package to maintain.
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| 08:45 | <vagrantc> muppis: that's what bug reports are for
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| 08:46 | <muppis> True.
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| 08:47 | But now had to go give some evenign snack for kids and get them to bed. See you later.
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| 08:48 | * vagrantc waves | |
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| 09:02 | <japerry> hey Carl
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| 09:02 | you there?
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| 09:46 | <andygraybeal> lts.conf lives here --> /var/lib/tftpboot/ltsp/i386 ?
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| 09:46 | <alkisg> In Ubuntu, yes
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| 09:51 | <andygraybeal> k, thank yuo :)
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| 10:21 | <abeehc> hi andygraybeal how's it goin
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| 10:21 | <andygraybeal> hi abeehc... i'm pulling my hair out a little.
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| 10:21 | abeehc, hows things going with you today?
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| 10:21 | <abeehc> just woke up.. my girl wants to go camping so until i hav emy coffee...
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| 10:21 | i am running libvirt/kvm instance at home here
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| 10:21 | <andygraybeal> nice!
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| 10:22 | yea, i can't get my client to boot :(
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| 10:22 | <abeehc> I think i did find the same with those e1000 drivers
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| 10:22 | <andygraybeal> it stops at the nbd.img
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| 10:22 | yea, i stopped using e1000 and i'm using virtio now.
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| 10:22 | <abeehc> but for virtio it works perfect i'm just double confirming
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| 10:22 | <pmatulis> is there a proper way (not rm command) to clean up old kernel files in the tftpboot directory?
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| 10:22 | <abeehc> this ubuntu, andygraybeal?
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| 10:22 | <andygraybeal> abeehc, ubuntu 10.04
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| 10:23 | <vagrantc> andygraybeal: nbd.img or nbi.img?
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| 10:23 | <andygraybeal> er...
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| 10:23 | <alkisg> andygraybeal: why nbi.img and not pxelinux.0? Doesn't it support pxelinux?
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| 10:23 | pmatulis: I think ltsp-update-kernels does remove the old kernels, if you removed them from the chroot before that is
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| 10:23 | I think it leaves only the old nbi image there
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| 10:23 | <andygraybeal> abeehc, nbi.img and i don't know if it supports pxelinux or not -- i do have a pxelinux file in the tftp folder
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| 10:23 | <abeehc> i don't htink deb ships the pxe rom thats why i asked
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| 10:24 | <vagrantc> i'd configure dhcpd.conf to use pxelinux.0 and ignore the nbi.img stuff
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| 10:24 | abeehc: the etherboot in debian supports PXE
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| 10:24 | <andygraybeal> vagrantc, okay, i think it says 'use pxelinux.0 ... if it can... and if it can't use nbi.img' or something like that in my dhcpd.conf
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| 10:25 | <vagrantc> andygraybeal: yes, but the logic is broken
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| 10:25 | <andygraybeal> if your on the list i posted my dhcpd.conf file, or i can pastie it too
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| 10:25 | aah broken logicness
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| 10:25 | <vagrantc> andygraybeal: just tell it to always use pxelinux.0
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| 10:25 | <andygraybeal> okay, i will look over my dhcpd
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| 10:25 | <vagrantc> unless your thin client really can't support pxe
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| 10:25 | <abeehc> vagrantc: it's kvm
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| 10:25 | your kvm host should have the roms in /usr/share/kvm
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| 10:25 | <vagrantc> abeehc: yeah, it's probably claiming it's etherboot and not PXE
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| 10:26 | <andygraybeal> i'm pretty sure it can support pxe.. i installed omething like kvm-pxe
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| 10:26 | <pmatulis> alkisg: the man page just says copy. anyway, i can confirm it does not due to the number i currently have
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| 10:26 | <abeehc> pxe-virtio.bin
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| 10:26 | yeah that should od it
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| 10:26 | <andygraybeal> gimme a minute to look at my dhcpd
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| 10:27 | <alkisg> pmatulis: sudo chroot /opt/ltsp/i386 dpkg -l 'linux*' | grep ^ii
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| 10:27 | Pastebin the output of that, and also the contents of your tftp dir
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| 10:27 | <pmatulis> alkisg: i've already done all that
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| 10:27 | <alkisg> Where's the pastebin link?
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| 10:27 | <vagrantc> abeehc: yes, it's pxe, but it may advertise that it's etherboot.
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| 10:28 | abeehc: which will confuse the logic in dhcpd.conf
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| 10:28 | so just have dhcpd.conf always send pxelinux.0
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| 10:28 | because any recent version of etherboot supports pxe ... in fact, we should maybe change the default dhcpd.conf always do that
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| 10:30 | <andygraybeal> okay, i have sadness to report, i changed it to only look for a pxelinux.0 it says "loading 10.0.0.1:/ltsp/i386/pxelinux.0 ...." it's hanging there.
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| 10:31 | <alkisg> pmatulis: in ltsp-update-kernels, there's a "removefiles()" function that removes your older kernels, that's why I'm specifically asking for pastebin output
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| 10:32 | <abeehc> I'm using 1010 right now but kvm client with virtio works very quick; server is also in kvm http://uploadpie.com/BmE6D
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| 10:32 | <vagrantc> andygraybeal: sounds like your tftp server isn't working
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| 10:32 | <abeehc> pretty well out of the box.. both the server and the client guest are bridged
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| 10:32 | if you aren't bridged you probly have connectivity problem between the two
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| 10:33 | cause yeah when my server reboots it hangs there too
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| 10:33 | the following lines in my screenshot only happen if the server's talking back
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| 10:33 | <andygraybeal> vagrantc, okay..
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| 10:34 | abeehc, so your saying i'm probably not bridged?
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| 10:34 | <abeehc> well I couldn't say that at all without seeing the definitions of your guests
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| 10:34 | and your underlying ubuntu network file cause to bridge in kvm is a pain
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| 10:34 | and involves modifying the host networks file
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| 10:34 | <andygraybeal> i bridged both of my network cards in libvirt
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| 10:34 | <abeehc> I'm sure it's possible with the other modes like nat or host only
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| 10:35 | <andygraybeal> brb.. i got to help someone with a scanner
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| 10:35 | <abeehc> i'd just double check the part a bout creating a network bridger is familiar https://help.ubuntu.com/community/KVM/Networking
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| 10:36 | <abeehc> then i'd think about booting hte client with a live cd and poking the server with tftpclient or whatever
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| 10:39 | <andygraybeal> abeehc, thank you for giving me sometihng to look into.
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| 10:40 | aaah abeehc, awesome troubleshooting idea.
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| 10:40 | wonderful
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| 11:28 | <kusznir> Hi all: is there an easy command like ltsp-localapps that will run and return results for a console command?
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| 11:29 | I assume ssh $LTSP_??? <command> would work...
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| 11:30 | <abeehc> that's what i do with a script
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| 11:30 | if i'm looking to get info off the clients.. at one point i wanted to figure ou twhich had local hard drives
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| 11:32 | <kusznir> I've got a user using eclipse for dev'ing for an android phone. Eclipse needs to run on the terminal server, but then it needs to talk to the phone plugged in via usb. So I'm trying to figure out how to "transparently" let it run its usb upload script on the actual thin client.
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| 11:34 | <abeehc> ah I see.. i'd think the ssh option would work for you.. other people here might have better ideas; i'm not so familiar with localdevices
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| 11:35 | then again i think the android utils are server/client deals
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| 11:36 | running adb on the client and telling eclipse that might work? i've only played with that stff a couple times
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| 11:36 | <kusznir> Yea, I was also thinking about that route, but my first round of googling (done in the last 5 min) has not been helpful in that route.
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| 11:36 | <abeehc> I guess that could be sketchy
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| 11:36 | maybe adb is the only part of the toolkit that has server operation http://developer.android.com/guide/developing/tools/adb.html
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| 11:39 | ssh with the right key in the chroot and it's really flexible though; i could the interesting parts of some of my basic scripts
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| 11:45 | <kusznir> By default, is a users' $HOME and all that stuff ready and set?
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| 11:45 | As in, if a user on the terminal server has .ssh/authorized_keys set up so they could ssh into itself, will that also let them ssh directly into a thin client as themselves?
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| 11:45 | <vagrantc> should, yes.
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| 11:45 | <kusznir> cool.
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| 11:48 | <abeehc> I'm not so clear on that; i'd think they would still need to ssh as root to the thinclient?
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| 11:48 | <vagrantc> well, if the application needs root to run, yes.
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| 11:49 | kusznir: you could also just use an ltsp-localapp to do it, though
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| 11:49 | <vagrantc> running sshd on the thin client has some man-in-the-middle attack potential
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| 12:25 | <highvoltage> vagrantc: I might have to ask you some dumb questions now and again about the ldm-themes package if that's ok :)
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| 12:25 | vagrantc: should it be a single binary package with all the themes, or a multi-binary package that generates a binary package for every theme?
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| 12:26 | <vagrantc> highvoltage: ask away :)
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| 12:26 | highvoltage: both have advantages and disadvantages
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| 12:27 | highvoltage: a single package is simple, although you may end up shipping a little extra cruft if people only end up using one of the themes
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| 12:28 | highvoltage: also depends on what kind of dependency bloat it brings in ...
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| 12:28 | <highvoltage> vagrantc: I tend to lean towards a multi-binary package for this
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| 12:29 | <vagrantc> highvoltage: a separate package for each theme allows the greatest flexibility, but any new themes or obsoleted themes will require ftpmaster action, so depending on how frequent new/old themes happen, it could annoy the ftpmasters
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| 12:29 | <highvoltage> ok.
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| 12:29 | <vagrantc> highvoltage: although i'd think a separate source package for each theme, if you're going through the both, unless some of the themes share a lot of files
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| 12:30 | er, if you're going through the approach of having separate packages per theme
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| 12:30 | <highvoltage> I doubt we'll have a huge influx of ldm themes, so far I expect spacefun, maybe ltsp upstream, maybe one for debian-edu and whatever the wheezy theme will be
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| 12:30 | <vagrantc> ltsp upstream is just shipped with LDM
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| 12:30 | debian-edu already handles their own theme
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| 12:31 | <highvoltage> they currently use the upstream one
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| 12:31 | <vagrantc> not intentionally
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| 12:31 | <highvoltage> at least they did last when I talked to them about it just before the squeeze release
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| 12:31 | ah ok
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| 12:31 | in that case it might as well just be a single package then
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| 12:31 | since ldm themes are small enough anyway
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| 12:32 | <vagrantc> highvoltage: i think the default theme for debian artwork would make sense
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| 12:32 | highvoltage: i.e. right now, it's spacefun, and when wheezy releases, it'll be whatever that is
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| 12:33 | and if other people want to make themes, then they can
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| 12:34 | i'm tempted to drop the dependency on gtk2-engines-ubuntulooks and just pull in the default clearlooks ... but it adds a pretty large dependency tree.
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| 12:34 | clearlooks used to be it's own package ... but alas...
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| 12:34 | <highvoltage> so there should be single-binary packages for each theme like ldm-theme-spacefun, ldm-theme-wheezy, etc?
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| 12:34 | <vagrantc> highvoltage: i'd just call it ldm-themes and leave it at that
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| 12:35 | <highvoltage> righto, I'll get on with it then
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| 12:35 | <vagrantc> highvoltage: put the name of each theme in the description problem
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| 12:35 | probably
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| 12:36 | if there's reason to split it further later, we can do it then
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| 12:36 | <highvoltage> ok, that makes sense
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| 12:41 | <menomc> hi, FYI dealextreme is finally selling a usable thin-client http://www.dealextreme.com/p/ultra-mini-fanless-compact-pc-computer-w-tdx600-1ghz-cpu-windows-98-2000-xp-ce-dos-linux-70770
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| 12:42 | <muppis> Cool.
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| 12:44 | <vagrantc> muppis: that looks suspiciously like the ebox-2300 that mysterously didn't work well with ltsp5
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| 12:44 | <menomc> :(
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| 12:45 | vagrantc: what was the problem?
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| 12:45 | <vagrantc> menomc: it took 5-10 minutes just to boot, and ran really slowly after that
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| 12:45 | <menomc> ouch+
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| 12:46 | <vagrantc> *maybe* it's a newer model and doesn't have that problem ...
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| 12:46 | i seem to recall the processor being slower than what's listed there
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| 12:46 | <muppis> Hope so.
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| 12:47 | <vagrantc> but it even performed slower than you would have though with the processor it had
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| 12:48 | <muppis> Poor nic performance?
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| 12:48 | <vagrantc> muppis: nothing so simple could explain it ...
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| 12:49 | it ran fine on ltsp 4.x ... disklessworkstations was selling them for a while
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| 12:49 | <menomc> in the comments people says it's miss titled, been "clearly" a 3300 and not 2300...
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| 12:49 | <vagrantc> maybe there's hope, then
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| 12:50 | <menomc> who tries it first? :p
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| 12:50 | <kusznir> vagrantc, so ssh is not normally running on the thin clients? ltsp-localapps doesn't use ssh?
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| 12:50 | <vagrantc> kusznir: no, it doesn't use ssh
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| 12:51 | it communicates via the X server's xatoms/xproperties
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| 12:51 | <kusznir> Hmm...Ok.
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| 12:51 | <vagrantc> it's a little weird, but sort of elegant
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| 12:51 | <kusznir> I tried to use ltsp-localapps to run console commands (as this is), but it didn't work; I had to use ltsp-localapps to run an xterm, then run it from inside the xterm.
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| 12:52 | <vagrantc> kusznir: yeah, might have to run wrapper scripts or some such
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| 13:10 | <andygraybeal> abeehc, hey are you still around or did yuo go camping already?
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| 13:16 | <abeehc> i'm still procrastinating
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| 14:00 | <andygraybeal> abeehc, i got a 2848 :)
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| 14:00 | just hooked it up and turned it on!
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| 14:00 | reset the config :)
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| 14:01 | your right, the java applet is entirely slow
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| 14:30 | <Mip5> Afternoon Gang - when I logon to a server, it shows that some updates are available. I've run apt-get update && apt-get dist-upgrade, and have installed the updates. When I check for updates, none show up. However, if I restart the server and ssh back into it, I once again multiple updates. My other ubuntu machines don't do this.
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| 14:55 | <abeehc> andygraybeal: hekc yeah i don't think you'll regret that purchase...
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| 15:28 | <highvoltage> vagrantc: how would you prefer I provide my source packages to you? e-mail? http? other?
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| 15:49 | <vagrantc> highvoltage: VCS?
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| 00:00 | --- Sat Apr 23 2011 | |