IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 1 December 2015 (all times are UTC)
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| 11:07 | <adimetrius> alkisg, i have installed ubuntu1510 on server, and initially the client worked well, but now it won't get past login prompt: i enter password and username, screen goes black as if it is logging in, but then login screen returns
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| 11:08 | <alkisg> adimetrius: when you say "initially it worked well", do you mean that previously you were able to login?
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| 11:08 | <adimetrius> yes
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| 11:08 | <alkisg> What changed?
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| 11:08 | <adimetrius> i migrated my old user accounts by manually editing passwd and shadow and group and gshadow, could i have messed smth up there?
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| 11:08 | <alkisg> Sure, but that part is not ltsp-related
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| 11:09 | There's a tool to check passwd and shadow for validity
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| 11:10 | <adimetrius> well i created a new user on server and it won't log into the client either
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| 11:10 | <alkisg> If passwd is broken, the problem is not related to ltsp even if you experience it on an ltsp client
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| 11:10 | <adimetrius> ok
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| 14:11 | <adimetrius> from a client, i can only see my own folder under /home. I need to see home folders of other users under /home. Is it configurable?
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| 14:11 | i use ltsp-pnp
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| 15:35 | <||cw> adimetrius: you might have to use NFS for /home then
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| 15:36 | I don't know off-hand how to do that for pnp
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| 15:36 | <adimetrius> i'm now switching back to non-pnp
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| 15:37 | i couldn't find a good explanation of how pnp works, is there one?
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| 15:39 | <Agustin> Hello!
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| 15:40 | I have a problem with LTSP server. When the thin client boot, not open socket to nbd server. Where is the problem? Thanks! Sorry for my bad english
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| 15:43 | <||cw> adimetrius: it basically uses the server's / to generate a client image instead of a chroot. doing so means you can have identical thin clients and thick clients and automatic selection of what mode to use based on client ram
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| 15:44 | <adimetrius> how can i get the automatic part to work? currently, i can't get the "old" way to work, i get a "Socket failed connection refused" error on client from nbd
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| 15:44 | <||cw> otherwise it works the same, excluding /home in the image, and mounting it via sshfs
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| 15:44 | is ndb running?
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| 15:44 | <adimetrius> hm...
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| 15:45 | <||cw> after the first ltsp-update-image you might need to manually start it, or reboot the server
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| 15:46 | the automatic part is based on the FAT_RAM_THRESHOLD lts.conf option, 300MB ram by default (which seem low to me :P )
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| 15:48 | <work_alkisg> adimetrius: in lts.conf there is an FSTAB option to enable nfs if you want, but you can also see /home if you have an sshfs symlink for that
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| 15:48 | <adimetrius> i think it's running
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| 15:49 | <alkisg> Agustin: which distro/version?
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| 15:49 | ||cw: I think it's 400, not 300, isn't it?
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| 15:50 | The idea was "512 ram - some videoram"
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| 15:50 | <||cw> http://manpages.ubuntu.com/manpages/wily/en/man5/lts.conf.5.html says 300
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| 15:50 | documentation lag?
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| 15:50 | <alkisg> Hrm, true, I'm using 400 locally here
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| 15:51 | No no the docs are right, but ltsp-config lts.conf should make it 400
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| 15:51 | So for ltsp-pnp, by following the wiki page, it should be 400
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| 15:51 | <||cw> personally I'd use 700, unless the client software use didn't include a web browser
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| 15:51 | <alkisg> Well, if you have 100 mbps network, a 512 mb ram client works better as fat
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| 15:51 | It's a tradeoff
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| 15:52 | Also there are some light multimedia apps like tuxpaint, tuxtype etc, which work a *lot* better as fats with <=512 ram
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| 15:53 | <alkisg> And of course if one has a light server, with e.g. 2 GB RAM, there's not much point in having a lot of thin clients there
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| 15:55 | Meh no the 400 threshold is only in the localized greek version of lts.conf...
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| 15:57 | <adimetrius> I get Socket failed: connection refused on the client, can't get nbd to work
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| 15:58 | <alkisg> What did you do after ltsp-pnp was working?
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| 15:59 | <adimetrius> i need /homes of users to be visible to each other
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| 15:59 | <alkisg> ltsp-pnp is not related to that
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| 15:59 | It's the same for non-pnp as well
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| 15:59 | You either need NFS or EXTRA_MOUNTS
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| 15:59 | <adimetrius> i had /homes visible under 12.04 ltsp
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| 15:59 | <alkisg> Did you have nfs?
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| 15:59 | <adimetrius> no
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| 15:59 | it was nbd
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| 16:00 | <alkisg> You are confused
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| 16:00 | nbd is for the root file system, /
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| 16:00 | it's read only
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| 16:00 | /home is mounted with either nfs or sshfs
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| 16:00 | The default for ltsp has been sshfs, unless you used NFS_HOME=True in lts.conf
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| 16:00 | NFS_HOME=True has been deprecated in favor of FSTAB_1="nfs..."
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| 16:01 | And you can also see /home with an sshfs symlink
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| 16:01 | These are your options, pick one.
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| 16:02 | This is the lts.conf line for nfs home, you uncomment it, you install nfs-kernel-server, and you put /home in /etc/exports. #FSTAB_1="server:/home /home nfs defaults,nolock 0 0"
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| 16:02 | Or you make an sshfs symlink instead of using nfs
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| 16:04 | <adimetrius> i didn't have any lines like that in old lts.conf under 12.04, it worked out of the box with nbd and squashfs mounts
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| 16:05 | so you are saying i can have pnp and FSTAB= ?
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| 16:05 | <alkisg> I can't say a lot more to convince you. I wrote the code to convert NFS_HOME to FSTAB, if it helps you to believe me.
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| 16:06 | <adimetrius> i believe you :)
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| 16:06 | <alkisg> Sure, the -pnp part is unrelated to anything else that you do with ltsp, they are the same in pnp and non-pnp
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| 16:06 | You can use FSTAB etc
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| 16:06 | Ah
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| 16:06 | Here's what probably happened
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| 16:07 | You were using thin clients and now you're suddenly using fat clients
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| 16:07 | So, before doing anything else, do this:
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| 16:07 | open lts.conf
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| 16:07 | Under [Default], put:
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| 16:07 | LTSP_FATCLIENT=False
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| 16:07 | Reboot all your clients. They will all boot as thin clients, and you will have /home as you want it.
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| 16:08 | <adimetrius> you are very helpful alkisg, thank you very much, and i am in fact confused
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| 16:08 | <alkisg> adimetrius: what are your client specs? cpu/ram?
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| 16:14 | <adimetrius> the weakest is PIII 733MHz 512MB
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| 16:14 | others are P Dual-core 2.5GHz 2GB
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| 16:14 | or similar
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| 16:14 | <alkisg> Then you should use those as fat clients
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| 16:14 | How many clients? What are the server specs? do you have gigabit networking?
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| 16:15 | <adimetrius> 4 clients and gigabit networking on 3 of them
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| 16:16 | on fat clients, i still would need FSTAB= to see other /homes?
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| 16:16 | <alkisg> Do some test:
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| 16:16 | First, boot with all of them as thin clients, like you had in the past
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| 16:16 | By putting LTSP_FATCLIENT=False in lts.conf
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| 16:17 | If their performance is fine for you, problem solved, you are like you were in 12.04, no need to worry about fat clients, fstab etc
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| 16:17 | <adimetrius> i cant boot them like in the past, 'cause i can't get nbd to serve the squashfs image
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| 16:17 | <alkisg> (05:58:21 μμ) alkisg: What did you do after ltsp-pnp was working?
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| 16:18 | <adimetrius> ltsp-build-client
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| 16:19 | <alkisg> You broke it a bit
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| 16:20 | ...I think it will be faster if we do this with vnc again...
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| 16:20 | !vnc-dide
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| 16:20 | <ltsp> vnc-dide: To share your screen with me, run this: sudo apt-get --yes install x11vnc; x11vnc -connect srv1-dide.ioa.sch.gr - this is a reverse connection, it doesn't need port forwarding etc.
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| 16:23 | <alkisg> adimetrius: when it's done, try to boot a client, and then ping me
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| 16:23 | <adimetrius> ok
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| 16:27 | thin client boots and logs in just fine
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| 16:27 | but i guess it is fat
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| 16:30 | <alkisg> adimetrius: correct, now it will boot as thin
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| 16:30 | Epoptes is nice, isn't it? :)
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| 16:30 | sorry I didn't mean to stop you from typing
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| 16:30 | <adimetrius> AMAZING!
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| 16:32 | <alkisg> So this is Unity on thin clients
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| 16:32 | I think it sucks, it's too slow
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| 16:32 | Now you need to decide if you want to use them as thin clients or as fat clients
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| 16:32 | <adimetrius> what do u use?
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| 16:32 | <alkisg> I use gnome-flashback, but ubuntu-mate and lubuntu and xubuntu are fine too
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| 16:32 | * quinox uses fat clients with KDE, Awesome and Mate | |
| 16:33 | <alkisg> You can use unity on fat clients, it's not a problem there
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| 16:34 | <adimetrius> ok, now i see all /homes, but it is slower. how can i set up fat clients to see all /homes?
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| 16:35 | epoptes needs to be mentioned in you ltsp-pnp page!!!
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| 16:35 | <alkisg> OK, I'll put it in the "see also" page at the bottom
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| 16:37 | Now it will boot as fat with nfs
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| 16:38 | <adimetrius> but still uses nbd and sqashfs?
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| 16:38 | <alkisg> tftp, nbd, squashfs, and nfs
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| 16:39 | /home appears fine now
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| 16:39 | <adimetrius> great!!
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| 16:50 | thank you very much, i now have the setup that i want
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| 16:51 | <alkisg> You're welcome
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| 19:16 | <tamadmin> hi
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| 19:17 | what is new in epopyes
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| 19:20 | <vagrantc> in the last 4 minutes... hard to say.
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| 19:35 | <Hyperbyte> popeyes?
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| 22:03 | <alkisg> popeye has a big eye and oversees things well (=epoptes) :)
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| 23:11 | <Hyperbyte> My my, epoptes, what big eyes you have.
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