IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 22 September 2017 (all times are UTC)
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| 08:48 | <variona> I need some advice concerning the CRONTAB_01 parameter...
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| 08:48 | (part of)lts.conf: CONFIGURE_FSTAB= TRUE FSTAB_0="/dev/disk/by-uuid/a6008ac9-cad1-49b0-9eea-ddf446840b43 /home ext4 defaults 0 0" CRONTAB_01="* * * * * /home/camus/crontest"
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| 08:48 | this is /home/camus/crontest:
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| 08:48 | #!/bin/bash touch /home/camus/touched
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| 08:49 | <alkisg> Is this in a single line? bash touch?
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| 08:49 | <variona> I checked: if executed by hand the script works
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| 08:49 | root@acer-aspire:~#/home/camus/crontest root@acer-aspire:~#ls -l /home/camus/touched -rw-r--r-- 1 root root 0 Sep 22 10:33 /home/camus/touched
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| 08:50 | I checked on the client:
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| 08:50 | root@acer-aspire:~# ps ax| grep cron
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| 08:50 | 1725 ? Ss 0:00 /usr/sbin/cron -f
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| 08:50 | root@acer-aspire:~# cat /etc/cron.d/ltsp
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| 08:50 | * * * * * /home/camus/crontest
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| 08:51 | But it doesn't produce a /home/camus/touched file...
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| 08:51 | <alkisg> Isn't that wrong syntax there?
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| 08:51 | Don't you need a user account too?
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| 08:51 | * * * * * root /home/camus/crontest
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| 08:53 | man 5 crontab for the cron syntax
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| 08:53 | <variona> I'm rebooting the client now!
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| 08:55 | @alkisg BINGO! Thank you!
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| 08:56 | <alkisg> np, it was not an ltsp issue after all ;)
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| 08:59 | <variona> My bad was: I took the syntax from a crontab -e created file (a user crontab file)
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| 08:59 | <alkisg> Gotcha
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| 21:19 | <alazyworkaholic> dnsmasq won't start because of a port=0 line. Is this configuration not necessary when using an unmodifiable router as a dhcp server?
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| 21:22 | There error is (translated): illegal keyword repetition at line 56 of /etc/dnsmasq.d/ltsp-server-dnsmasq.conf
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| 21:35 | <||cw> the error implies that port= is already set somewhere else, you should only have one.
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| 21:35 | and if you want to disable its dns, it's needed
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| 21:57 | <alazyworkaholic> ||cw: thanks, I was just reading through the various dnsmasq related files on my system to try to figure out how they fit together. In /etc/dnsmasq.d I have /ltsp.conf and /ltsp-server-dnsmasq.conf. port=0 in both of them. Would that be the problem?
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| 21:58 | <||cw> likely. I'm nto sure why you have 2
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| 21:58 | upgrade gone wacko?
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| 21:59 | <||cw> you should probably only have 1 of those. I just use my external dns and dhcp, which is a little manual config, but plays nice with my other PXE stuff
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| 21:59 | <alazyworkaholic> ||cw: I'm on a freshly installed Xubuntu 17.04. I've been trying to get LTSP to work for a while now, and may have a couple redundant files.
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| 22:00 | I eventually came across the greek school's implementation using ltsp-manager, and I'd really like to get that to work.
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| 22:00 | <||cw> might be worth an OS reinstall and start clean with what you learned. I know had to my first couple tries
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| 22:00 | <alazyworkaholic> What files do you have in /etc/dnsmasq.d?
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| 22:01 | <||cw> I don't, I don't have dnsmasq at all. I'm not realy runnign a standard config though
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| 22:01 | * ||cw has to run | |
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| 22:11 | <alazyworkaholic> Turned out that ltsp.conf file was from an earlier attempt (from following this https://help.ubuntu.com/community/UbuntuLTSP/ProxyDHCP) and I forgot to remove it. Removed it, and now PXE works.
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| 22:42 | <alazyworkaholic> However, the client boot is still failing with a nbd0 /root issue.
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| 23:26 | I'm reading that nbd is an issue an that there are alternatives: nfs or AoE How can I try these? I saw some configuration information about these in /etc/ltsp/update-kernels.conf, but don't know how to select either one.
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| 23:30 | <vagrantc> NFS isn't well supported at the moment
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| 23:40 | <alazyworkaholic> vagrantc: so scratch NFS. What about AoE?
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| 23:41 | <vagrantc> alazyworkaholic: it's less well supported than NBD ...
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| 23:41 | alazyworkaholic: i suspect the issues you are reading about might have fixes or workarounds
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| 23:42 | <alazyworkaholic> I was reading https://www.howtoforge.com/using-ata-over-ethernet-aoe-on-ubuntu-12.10-initiator-and-target, but that's ancient and not even about ltsp. I found it hard to find any documentation about AoE. Is there any documentation about AoE?
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| 23:43 | *for LTSP?
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| 23:43 | <vagrantc> i don't think so
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| 23:44 | you just need to configure AoE however that's done for whatever implementation you choose, and then configure update-kernels.conf to use the correct AOE device
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| 23:45 | <alazyworkaholic> vagrantc: I don't know how to configure update-kernels. :( But I'll give NBD another try with a little help.
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| 23:46 | <vagrantc> alazyworkaholic: what problems are you having with NBD?
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| 23:47 | <alazyworkaholic> NBD didn't work. My client begins to boot, so I think it must have found the linux image, but it then drops to busybox/initramfs, right after I see the line "Begin: Running /scripts/local-block ... done." appear about a dozen times in a row.
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| 23:48 | from initramfs, I found nbd[0-15], and "nbd - Live" appears in /proc/modules
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| 23:48 | <vagrantc> alazyworkaholic: and you're using IPAPPEND=3 in update-kernels.conf ?
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| 23:49 | <alazyworkaholic> Earlier on in the boot I saw something about a socket error related to NBD, but it scrolled past before I could copy it down.
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| 23:51 | I saw a forum comment about IPAPPEND=3. It told me to modify all 2s to 3s in /var/lib/tftpboot/ltsp/amd64/pxelinux.cfg/default I did so, even though the file says not to edit it directly. Ran /etc/init.d/nbd-server restart. Sill no joy, so I changed it back.
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| 23:53 | /etc/ltsp/update-kernels.conf ends with #IPAPPEND=3. Should I uncomment that? If so, how do I update the kernel afterwards?
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| 23:53 | <vagrantc> alazyworkaholic: yes, uncomment it
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| 23:53 | though i think the default is IPAPPEND=2, not commented out ... so clearly you've tried that before
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| 23:54 | <alazyworkaholic> ok, uncommented it. How to update kernel?
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| 23:55 | <vagrantc> rebuild the image
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| 23:55 | that *should* do it
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| 23:55 | <alazyworkaholic> vagrantc: sorry, but I'm new. what's the command for that?
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| 23:56 | <vagrantc> alazyworkaholic: how did you install? using ltsp-manager? ltsp-pnp? a chroot?
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| 23:57 | <alazyworkaholic> ltsp-manager, I think
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| 23:58 | Server -> LTSP Image -> Update?
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| 23:58 | <vagrantc> yes
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| 23:58 | * vagrantc wouldn't thought ltsp-manager would have set IPAPPEND=3 too ... | |
| 23:58 | <vagrantc> would have thought
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