IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 26 January 2016 (all times are UTC)
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| 07:29 | <highvoltage> alkisg: hey, do you get edubuntu build failure notifications?
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| 07:32 | <alkisg> Hi highvoltage
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| 07:32 | No
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| 07:33 | Btw, our edubuntu membership has expired, right?
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| 07:36 | <highvoltage> alkisg: nope: https://launchpad.net/~edubuntu-members
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| 07:36 | alkisg: for a while it's been failing on:
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| 07:36 | Adding group `epoptes' (GID 128) ...
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| 07:36 | Done.
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| 07:36 | sem_open: Function not implemented
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| 07:36 | dpkg: error processing package epoptes (--configure): subprocess installed post-installation script returned error exit status 1
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| 07:36 | <alkisg> highvoltage: https://launchpad.net/~edubuntu-council ==> 0 active members
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| 07:37 | <highvoltage> not sure if that's directly an epoptes problem or not
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| 07:37 | yes, we expired from edubuntu-council, but we're still on edubuntu-members
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| 07:37 | <alkisg> Let me send a build to the epoptes ppa, it hasn't failed there whenver we tried it
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| 07:38 | It might be a problem in the faketime package
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| 07:38 | Although the PPA builds are fine with it
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| 07:40 | * alkisg is reading https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=778462 | |
| 07:40 | <alkisg> "Control: retitle -1 faketime: does not work in chroot if /run/shm is not mounted as tmpfs inside the chroot ("sem_open: Function not implemented")"
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| 07:43 | * alkisg requested a build, https://code.launchpad.net/~epoptes/+recipe/epoptes-proposed | |
| 07:43 | <highvoltage> alkisg: yeah the package built just fine, but it's the actual edubuntu iso build that fails when installing the package
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| 07:44 | <alkisg> Sorry, pidgin crashed in 16.04
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| 07:45 | So the situation looks like this: epoptes.postinst calls faketime in order to fool openssl to generate a certificate valid since the Epoch
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| 07:45 | It does that because some clients have an expired cmos battery, resulting in dates e.g. of 2000
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| 07:46 | Those clients are not controllable by epoptes if we don't use faketime that way
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| 07:46 | This works fine in real systems, no problem there
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| 07:46 | So I can either add a check in epoptes.postinst in order to not do that for the case of the edubuntu live cd,
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| 07:47 | or the edubuntu chroot there can bind-mount /dev/shm for faketime to work
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| 07:47 | I'd really recommend the latter
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| 07:53 | <highvoltage> alkisg: the latter will probably be a lot more difficult, my suspicioun would be that /dev/shm is not available in the protected build environment on launchpad's build infrastructure
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| 07:55 | <alkisg> highvoltage: how can I get a test environment to ensure that what I will do fixes the issue?
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| 07:56 | E.g. in ltsp chroots that issue doesn't happen
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| 07:56 | Should I suppose that /dev is not mounted at all?
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| 07:58 | <alkisg> *assume
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| 08:01 | <highvoltage> alkisg: I'm not 100% sure but you might need a whole launchpad infrastructure to test reliably locally. I suppose a package update and then checking with the next daily build should be simple and efficient enough? might also be a question for #ubuntu-devel or on some launchpad channel
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| 08:03 | <alkisg> highvoltage: how can I get access to the build failure logs?
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| 08:04 | Or, can you send me the link for one of them?
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| 08:06 | <highvoltage> alkisg: yes, can do
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| 08:07 | <alkisg> This is a sample command that epoptes will run on postinst:
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| 08:07 | faketime '1970-01-01 00:00:00 UTC' openssl req -batch -x509 -nodes -newkey rsa:1024 -days $(($(date --utc +%s) / 86400 + 3652)) -keyout /tmp/epoptes.key -out /tmp/epoptes.crt
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| 08:08 | <highvoltage> alkisg: can I forward it to you by email?
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| 08:08 | <alkisg> Sure, or PM here for the link
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| 08:08 | I just need something to tell to the folks at #launchpad
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| 08:09 | I.e. "epoptes fails when I ran that ^ command on the XXXX build environment, with this output:..."
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| 08:12 | I also tried on a plain chroot, I can't reproduce it so i wouldn't know what to check for, to bypass the launchpad build environment failures
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| 08:12 | The recipe build was fine
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| 08:12 | https://code.launchpad.net/~epoptes/+recipe/epoptes-proposed
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| 08:13 | I.e. faketime on Xenial doesn't throw an error when /dev/shm is not accessible
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| 08:16 | <highvoltage> alkisg: sorry, had some thunderbird issue forwarding the whole uncompressed log, I gzipped it and sent it to your gmail address
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| 09:09 | <alkisg> highvoltage: how is the build process named, what should I tell people at #launchpad about it? Is it "the edubuntu livecd build process"?
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| 09:09 | Is that related to #launchpad?
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| 09:10 | <highvoltage> alkisg: yes
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| 09:10 | alkisg: there are build logs online somewhere... I just don't have a link to it and it doesn't seem easy to find
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| 09:11 | (I'm also somewhat distracted by work today, will check again in a min)
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| 09:12 | <alkisg> Thanks
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| 14:45 | <eddytv> alkisg: still having trouble getting the audio output unmuted-on-boot on my LTSP clients. The command I run from the shell to fix the issue is: "amixer cset name='IEC958 Playback Switch' on"
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| 14:45 | Is there some way to incorporate that into lts.conf?
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| 14:55 | <alkisg> # eg. if the channel is named 'Mic Boost (+20dB)'
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| 14:55 | # then the variable is simply MIC_BOOST_SWITCH
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| 14:55 | #
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| 14:55 | # Oh, and SWITCH is used for on/off switches - value
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| 14:55 | # should be on or off, and VOLUME is used for volumes
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| 14:56 | I.e. try with PLAYBACK_SWITCH=on
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| 14:56 | Also note that you can put RCFILE_01="amixer cset ..." there
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| 14:57 | And avoid all the naming stuff, just run the command at the rc.local stage with RCFILE_01=xxx
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| 15:30 | <eddytv> Thanks, as always. Will give that a try when I get home.
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