IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 9 October 2018 (all times are UTC)
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| 15:30 | <adbenitez> pls help!
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| 15:30 | I am getting an error: "Negotiation: Error: Read failed: End of file"
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| 15:31 | seems to be the NBD
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| 15:33 | I am using just the default configuration (except ip ranges for dnsmasq)
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| 15:33 | I am following http://wiki.ltsp.org/wiki/Installation/Ubuntu
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| 15:34 | and used "ltsp-config dnsmasq --overwrite"
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| 15:34 | can someone help please?
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| 15:44 | <alkisg> adbenitez: did you run ltsp-update-image -c ?
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| 15:44 | adbenitez: what's the output of this? ls -l /opt/ltsp/images
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| 15:53 | <adbenitez> hello alkisg I had seen some irc logs of you talking about the same problem I had
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| 15:53 | http://irclogs.ltsp.org/?d=2017-01-25
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| 15:54 | "<soroch> Hi. When i boot LTSP i get "ALERT! /dev/nbd0 does not exist. Dropping to a shell". Please help."
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| 15:54 | I have the same problem
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| 15:55 | alkisg: yes, I excecuted "ltsp-update-image -c /" as suggested in the official guide (http://wiki.ltsp.org/wiki/Installation/Ubuntu)
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| 15:56 | <||cw> that log ins't loading. what was the solution to their issue?
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| 15:57 | <adbenitez> yes! the logs take a while to load
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| 15:57 | <||cw> no, it actually failed
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| 15:58 | <adbenitez> I am having intermitents problems to access the ltsp wiki also
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| 15:58 | solution givn by Statler
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| 15:58 | <Statler> ah, very good 10:07 im old ;) 10:08 but I remember now 10:08 [opt/ltsp/stretch.amd64] 10:08 exportname = /opt/ltsp/images/stretch.amd64.img 10:08 readonly = true 10:08 authfile = /etc/ltsp/nbd-server.allow 10:08 [opt/ltsp/stretch.amd64] <<< this is the trick
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| 16:00 | <||cw> adbenitez: are you using a custom image on debian? if you're following the guide that is not your issue
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| 16:00 | maybe same symptom, but otherwise unrelated
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| 16:13 | <adbenitez> sorry I was disconnected could not see any reply since my last post
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| 16:14 | so any advice?
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| 16:15 | <alkisg> (06:44:33 μμ) alkisg: adbenitez: what's the output of this? ls -l /opt/ltsp/images
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| 16:15 | <adbenitez> I had a 32 bit image
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| 16:16 | this is the only file /opt/ltsp/images/i386.img
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| 16:17 | when I try: nbd-client localhost -N /opt/ltsp/i386 /dev/nbd0
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| 16:17 | I get: Negotiation: ..Error: Read failed: End of file
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| 16:17 | <alkisg> output please
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| 16:17 | <adbenitez> ?
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| 16:18 | wait a second please
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| 16:18 | total 3147052 -rw-r--r-- 1 root root 1610932224 oct 8 12:24 i386.img -rw-r--r-- 1 root root 1611640832 oct 8 12:11 i386.img.old
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| 16:19 | <alkisg> So you don't have an image there
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| 16:19 | You only have the old one
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| 16:19 | Run ltsp-update-image -c / again
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| 16:19 | <adbenitez> no
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| 16:19 | please sorry look line by line
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| 16:19 | -rw-r--r-- 1 root root 1610932224 oct 8 12:24 i386.img
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| 16:20 | -rw-r--r-- 1 root root 1611640832 oct 8 12:11 i386.img.old
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| 16:20 | chat ignored the return
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| 16:21 | <alkisg> sorry i'll be back in 20 mins
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| 16:21 | <adbenitez> ok
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| 17:51 | <adbenitez> alkisg: are you back?
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| 17:56 | <alkisg> I was, 1.5 hour ago :D
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| 17:56 | I'm a bit afk now... so, try this:
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| 17:56 | !nbd-client
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| 17:56 | <ltsp> nbd-client: To try mounting the NBD image from the client initramfs: nbd-client 192.168.67.1 -N /opt/ltsp/i386 /dev/nbd0
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| 17:56 | <alkisg> Replace the ip there with the server one
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| 17:56 | Does that correctly mount the nbd image?
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| 17:59 | <adbenitez> no
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| 17:59 | msg: Negotiation: ..Error: Read failed: End of file Exiting.
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| 18:00 | <vagrantc> pgrep -l -a -f nbd
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| 18:00 | <alkisg> that means your nbd server configuration is wrong
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| 18:00 | <adbenitez> also "/opt/ltsp/i386" doesnt exist in the filesystem
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| 18:01 | <Hyperbyte> alkisg, fat client test was a success so far. I've been asked to order 8 additional ones. :-)
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| 18:01 | <alkisg> grep -r . /etc/nbd-server/conf*
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| 18:01 | Great!
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| 18:01 | * alkisg is a bit afk, bbiab... | |
| 18:02 | <vagrantc> adbenitez: /opt/ltsp/i386 is the "name" used in the nbd configuration
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| 18:02 | <adbenitez> pgrep -l -a -f nbd output: 754 knbd-recv \n 1007 /bin/nbd-server
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| 18:02 | <vagrantc> so, it's running at least...
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| 18:02 | <adbenitez> vagrantc: sorry I am new to this
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| 18:03 | <vagrantc> adbenitez: it does look like a path, so it's a reasonable question :)
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| 18:03 | for historical reasons, mostly
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| 18:03 | <adbenitez> alkisg grep -r . /etc/nbd-server/conf* output:
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| 18:04 | <vagrantc> this might be best in a pastebin
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| 18:04 | !pastebin | echo adbenitez
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| 18:04 | <ltsp> adbenitez pastebin: try !paste
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| 18:04 | <vagrantc> !paste | echo adbenitez
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| 18:04 | <ltsp> adbenitez paste: the LTSP pastebin is at http://ltsp.pastebin.com. Please paste all text longer than a line or two to the pastebin, as it helps to reduce traffic in the channel. Don't forget to paste the URL of the text here.
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| 18:05 | <adbenitez> vagrantc: haha thanks for that
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| 18:05 | vagrantc: the url doesnt work
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| 18:05 | <vagrantc> just use pastebin.com then
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| 18:05 | <adbenitez> yes that worked
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| 18:06 | https://pastebin.com/Tsc0Jbzz
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| 18:06 | <vagrantc> looks like you haven't configured nbd to serve your image
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| 18:07 | <adbenitez> I was following the guide in the wiki
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| 18:07 | <vagrantc> which guide in which wiki? :P
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| 18:07 | <adbenitez> http://wiki.ltsp.org/wiki/Installation/Ubuntu
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| 18:07 | I fellt that it was not complete
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| 18:08 | but since I am a newbie...
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| 18:08 | <vagrantc> i'm unable to get to wiki.ltsp.org at the moment...
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| 18:10 | <vagrantc> basically, there might be a step something like: ltsp-config nbd
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| 18:10 | ltsp-config nbd-server
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| 18:11 | maybe you ran that before generating the image? that would explain why you have swap configured by not the image
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| 18:12 | <vagrantc> even the wayback machine doesn't know about that wiki page... *sigh*
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| 18:19 | <adbenitez> sorry, there was a blackout
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| 18:20 | so what config guide can you suggest me to use for the nbd-server
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| 18:20 | ?
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| 18:21 | <alkisg> adbenitez: ltsp-update-image does configure nbd server if it sees it's not configured yet
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| 18:21 | But ok anyway run this: sudo ltsp-config nbd-server
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| 18:22 | <adbenitez> I had to use --overwrite, do I proceed?
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| 18:23 | msg: File /etc/nbd-server/conf.d/swap.conf exists but --overwrite was not specified.
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| 18:24 | <alkisg> Did it create /etc/nbd-server/conf.d/ltsp_i386.conf ?
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| 18:24 | (yeah, use overwrite)
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| 18:25 | <adbenitez> "/etc/nbd-server/conf.d/ltsp_i386.conf" was not created
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| 18:25 | <alkisg> What's the output of this? sudo ltsp-info | nc termbin.com 9999
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| 18:25 | It sounds like something is wrong in your setup
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| 18:26 | If you're saying you have the image but ltsp-config nbd-server doesn't create the nbd configuration
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| 18:26 | <adbenitez> I have issued the command but "/etc/nbd-server/conf.d/ltsp_i386.conf" was not created eithed
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| 18:26 | either
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| 18:26 | <alkisg> Btw are you using sudo there?
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| 18:26 | We need the output of the sudo ltsp-info command, it's in termbin
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| 18:28 | <adbenitez> sudo ltsp-info output: No LSB modules are available. \n nc: getaddrinfo: No address associated with hostname
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| 18:28 | BTW the server doesnt have direct access to internet
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| 18:30 | alkisg: yeah I am using sudo: "sudo ltsp-config nbd-server --overwrite"
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| 18:32 | it creates: /etc/nbd-server/conf.d/swap.conf but dont creates /etc/nbd-server/conf.d/ltsp_i386.conf
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| 18:33 | I am just following the wiki installation guide, using the chrootless way (option b in the guide)
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| 18:36 | alkisg: output of ltsp-config: https://pastebin.com/awNwJw8q
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| 18:36 | I mean: sudo ltsp-info
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| 18:36 | sorry
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| 18:38 | ??
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| 18:41 | also "/etc/ltsp/nbd-server.allow" doesnt exist :(
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| 18:49 | <adbenitez> please, can someone give some light about why ltsp isnt configuring nbd-server?
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| 18:56 | <alkisg> adbenitez: you're not using the tutorial
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| 18:56 | You don't even have the correct ltsp versions
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| 18:56 | Those are from 2017, the tutorial uses ltsp 2018
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| 18:56 | Please follow the tutorial
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| 18:57 | <adbenitez> but I had added the greek ppa!!
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| 18:58 | and issued the commands in the tutorial
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| 18:58 | <alkisg> Your ltsp-info says otherwise...
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| 18:58 | Ah
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| 18:58 | You're using ubuntu 16.04
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| 18:58 | While the tutorial says "18.04"
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| 18:58 | <adbenitez> ugh!
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| 18:59 | can't I run the latest ltsp in 16.04??
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| 18:59 | <alkisg> No
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| 18:59 | Noone backported it there
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| 18:59 | <adbenitez> may I do a dist upgrade??
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| 18:59 | <alkisg> Sure, if you like
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| 18:59 | dist-upgrade takes an hour, an installation takes half
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| 19:00 | Whatever you prefer :)
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| 19:00 | (actually, do-release-upgrade)
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| 19:00 | <adbenitez> wow that will take a lot of time!
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| 19:00 | <alkisg> Yeah a clean install is much easier
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| 19:01 | <adbenitez> and my company is connected at speeds really low(100KBps)
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| 19:01 | <alkisg> You can download an ubuntu.iso from home...
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| 19:02 | It's still strange that ltsp-config nbd-server didn't work in 16.04 though
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| 19:03 | <adbenitez> yeah!
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| 19:03 | <mwalters> p sure they work on my 14.04 install
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| 19:03 | <adbenitez> ugh!?
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| 19:05 | now I don't know what to do, if install 18.04 or try an old ltsp :(
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| 19:06 | <||cw> adbenitez: is this a new ltsp install, or old that stopped working?
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| 19:06 | <mwalters> I just set up a test server w/ 18.04 to dry-run our upgrades. Getting it up and running was pretty easy and quick
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| 19:06 | <adbenitez> ||cw: a new one
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| 19:07 | <||cw> did you reboot after configing everything?
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| 19:07 | <adbenitez> mwalters: I am at really low connection speed
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| 19:07 | several times
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| 19:08 | ||cw: the problem is that ltsp-config nbd-server isn't working
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| 19:09 | <adbenitez> thanks for the help guys! I will try upgrading to 18.04
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| 19:10 | have a nice day, bye
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| 20:19 | <sutula> alkisg: Do you or anyone here have experience upgrading a working 16.04 setup to 18.04? Apart from a reinstall of LTSP, is it likely that a release upgrade of Ubuntu might just work? Anyone tried already?
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| 20:31 | <||cw> a couple people have reported it works fine
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| 20:31 | I did a plain server upgrade and it was fine.
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| 20:32 | that one wasn't ltsp though
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| 20:57 | <sutula> ||cw: Thanks!
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| 20:58 | * sutula will try to remember, "backups are good...backups are good" | |
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| 21:10 | <||cw> yeah, take a server image :)
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| 21:10 | also, plan on a big maintenance window, you'll want to rebiuld the client images, and make sure the ppa is used in them as well as the server
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| 21:11 | !install
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| 21:11 | <ltsp> install: http://wiki.ltsp.org/wiki/Installation/Ubuntu for Ubuntu, or http://wiki.ltsp.org/wiki/Installation for other distributions
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| 21:11 | <vagrantc> only working backups are good, others are just traps
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| 21:11 | <||cw> is ltsp.org down?
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| 21:11 | <vagrantc> wiki.ltsp.org wasn't working for me earlier
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| 21:11 | <||cw> logs either
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| 21:11 | or www
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