IRC chat logs for #ltsp on irc.freenode.net (webchat)


Channel log from 17 October 2015   (all times are UTC)

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01:50
<maldridge>
is ltsp stable on 14.04 yet?
01:54
MiKrO_: it could be related to bandwidth on the network, videos take a lot
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07:07work_alkisg is now known as alkisg
07:07
<alkisg>
maldridge: ltsp upstream has been stable on 14.04 even before 14.04 was out
07:08
But the published version of ltsp in 14.04 will never be stable unless people request a backport or something
07:08
So, just use the Greek schools PPA
07:08
<maldridge>
alkisg: figured, I vaguelly remember there being some interesting kernel issues with 14.04
07:09
5
07:09
<alkisg>
Ah, you mean 14.04.3?
07:09
I.e. vivid?
07:09
<maldridge>
yeah, that one
07:09
<alkisg>
The vivid kernel did have some issues, that's the 15.04 kernel though
07:09
Yup, those are fixed as well
07:10
stgraber: maybe I should become the ltsp maintainer in Ubuntu now, since you don't have much time for it, and since debian releases don't align with the ubuntu ones...
07:10
So that I test + tag new releases right before feature freezes of ubuntu versions
07:11
stgraber: how does that happen, do I need to file a bug report or something?
07:11
<maldridge>
alkisg: cool, I wound up going with the chroot method, but knowing that those fixes are in place I might try the pnp method again
07:12
<alkisg>
maldridge: you can add the ppa in the chroot
07:12
You don't need the -pnp version to use the greek schools ppa
07:12
<maldridge>
yeah, but I prefer the pnp version for simplicity in managing the images
07:12
<alkisg>
Ah, sure
07:12
I've tested up to ubuntu 15.10 and it works fine with the version in the ppa
07:13
<maldridge>
trying to do automated chroots and still run things from my configuration management platform gets very interesting very quickly
07:13
<alkisg>
The only problem is the keyring daemon, so I'm disabling it and keyrings don't work
07:13
https://bugzilla.gnome.org/show_bug.cgi?id=730587
07:13
<maldridge>
fair, we do the very not-recommended thing of everything logging in under one account anyway...
07:13
<alkisg>
That is not related
07:14
Single accounts also use keyrings for browsers
07:14
<maldridge>
yeah, but probably best not to stack problems
07:14
<alkisg>
Sure, what I meant is that if you weren't using the ppa, you might have thousands of temp files in your disk even with a single account
07:14
Btw, why one account instead of many?
07:15
<maldridge>
ouch, that is certainly something to keep track of
07:15
the usage model for that particular lab its easier to have everyone inside the same security context. That way they can open pipes between consoles and things like that
07:16
its also so that I don't have to setup/teardown special accounts and groups for every user
07:16* alkisg feels a common group would be better there, but anyway
07:17
<maldridge>
yeah, its not my first pick of how to run the lab, but I'm having to support one particular program a professor needs and I don't really have the tools to troubleshoot why it doesn't work
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10:39alkisg is now known as work_alkisg
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11:57
<stgraber>
work_alkisg: we don't have maintainers in Ubuntu. Currently LTSP is maintained by the core dev team as it's in main.
11:57
<work_alkisg>
stgraber: aren't there per-package uploaders?
11:57
<stgraber>
work_alkisg: in 16.04, I'll try to get it demoted to universe at which point it'll be maintained by anyone who's a MOTU or has ltsp in their packageset which will mean that anyone in edubuntu-dev will be able to upload it, including you
11:58
<work_alkisg>
Cool, that will be fine
11:58
<stgraber>
also need to get rid of the edubuntu delta in it at the same time so it can actually be synced from Debian which will make keeping things up to date significantly easier
11:59
<work_alkisg>
If that happens then I could upload to debian and syncpackage to ubuntu, yup
11:59
<stgraber>
yeah or just let Launchpad auto-sync for you until debian import freeze
12:00
<work_alkisg>
Nice... should I ping you for this? e.g. in a couple of months?
12:00
<stgraber>
yeah, if it's not done by the end of the year, remind me :)
12:00
<work_alkisg>
Will do, thanks
12:02
<stgraber>
I'll be down in South Africa in January for work and hope to spend some time with highvoltage there to sort out some of the 16.04 Edubuntu stuff, basically reducing the amount of delta to make it easy to maintain 16.04 and hand the project to a new team afterwards
12:02
but for now, I'm going to bed. Just got back home from a week in Seattle, had an overnight flight back where I didn't manage to rest much at all, so I'm exhausted :)
12:02
<work_alkisg>
Have a good night's rest! :)
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13:20
<highvoltage>
night stgraber
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14:26
<Tex>
Never had video really work, even when using VLC+ltsp-localapps on a gigabit backbone.
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15:40work_alkisg is now known as alkisg
15:40
<alkisg>
Tex: what do you mean? localapps or fat clients are like a normal installation, they can e.g. show fullscreen youtube on even a 10 mbps local network, not even 100 mbps...
15:42
sbalneav: Hello! Are you guys at LTSP BTS?
15:43
There's this bug that affects all LTSP users... it's smallish, in .c, and grave enough to work on at a BTS if you feel like coding... https://bugzilla.gnome.org/show_bug.cgi?id=730587
15:44
I.e. gnome-keyring is broken on sshfs due to some locks failing on that file system... /me thinks sbalneav is the most suitable person for that one... :)
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16:37
<alkisg>
gbaman: about u-boot and overlays, are .dtb files needed to boot rpi? If so, they would be downloaded over tftp, right?
16:38
<gbaman>
Yes, they are needed, they are the device tree stuff. But, they are loaded by the blob I believe, so would be needed on the card
16:38
<alkisg>
From what I got so far, in the sd cards, only u-boot would be needed, one for rpi2 renamed to kernel7.img, and one for rpi renamed to kernel.img, right?
16:38
I'm reading this: http://elinux.org/RPi_U-Boot
16:38
Boot Using Dynamic IP => If your kernel uses Device Tree: => tftp ${fdt_addr_r} ${fdtfile}
16:38
<gbaman>
You can name them whatever you want, there is undocumented syntax for each Pi version - https://github.com/PiNet/PiNet-Boot/blob/dev/boot/config.txt
16:39
<alkisg>
To avoid using config.txt at all..
16:39
The "tftp ${fdt_addr_r} ${fdtfile}" line gets the overlay from tftp, right?
16:39
I.e., they wouldn't be needed in the sd card afaik...
16:39
<gbaman>
config.txt is needed on the card
16:40
It is the first thing read by the GPU on boot
16:40
<alkisg>
"in fact, you may simply want to delete config.txt completely "
16:40
<gbaman>
It defines a few important things
16:40
Like graphics settings
16:40
<alkisg>
It's all commented out by default
16:40
<gbaman>
And device tree overrides
16:40
<alkisg>
But ok it can be left there with the comments, np with that one
16:41
<gbaman>
For PiNet for example I have hdmi_force_hotplug=1 and dtparam=i2c_arm=on. First being for forcing HDMI instead of composite and second enabling I2C
16:42
<alkisg>
OK... about the kernels, how are you getting kernel.img-4.1.7+ etc?
16:42
Just installing them to the chroot?
16:43
<gbaman>
First thing is they don't follow the normal linux-image package standard...
16:43
They are included in raspberrypi-bootloader package
16:43
<alkisg>
Ah
16:44
Does ltsp automatically include things if you run update-initramfs, or did you need to do something extra to make that happen?
16:44
<gbaman>
There is linux-image packages, but they are the kernels put together by the Raspbian team and are nearly directly based off the Debian kernels
16:44
One sec, will dig out my script :)
16:56
I will admit it could be very cool to use u-boot
16:57
But only if it doesn't slow stuff down too much
16:58
<alkisg>
Normally downloading the kernel+initrd takes only a few seconds
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18:26* alkisg loves being able to just `apt-get install epoptes-client` on rpi2 and then be able to use it headless... :)
18:35
<Phantomas>
alkisg: nice, does it show the client information correctly in epoptes?
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