LTSP 5 is in minimal maintenance mode
The new LTSP is hosted at https://ltsp.github.io

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


Channel log from 2 May 2019   (all times are UTC)

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06:37
<alkisg>
bcg: hi, I'm designing the new ltsp, would you like to be involved in the process, to make sure that we include support for rhel-based distributions?
06:37
For example, ltsp-client now won't have any code at all, it will only list the necessary dependencies like nbd-client. The init-ltsp.d and the rest of the ltsp-client code will be inside an additional initrd image called $TFTP/ltsp/ltsp.img.
06:56
<bcg>
Sure, but I mostly have no time at the moment, so don't wait me. Moving stuff to initrd is fine for me.
06:56
I'm still using nfs-root, so I have some catching up to do.
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07:01
<Hyperbyt1>
Happy birthday alkisg! :-D
07:06
<alkisg>
bcg: ok, I'll ping you with the git tree after the first few commits, so that you can just keep your radar on in there
07:06
Hyperbyt1: why, thank you Jan! :)
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09:54
<HeyFootey>
Hi, hoping for some guidance. Just upgraded working 14.04 LTSP Edubuntu to 18.04 using Greek Schools PPA and wiki instructions. Unable to login on any clients due to some error with LDM. Client boots and I can access via SSH and console session. Following in repetaed in the logs:
09:54
May 2 19:24:04 ltsp3 kernel: [ 237.315343] block nbd9: NBD_DISCONNECT May 2 19:24:04 ltsp3 kernel: [ 237.315366] block nbd9: shutting down sockets May 2 19:24:04 ltsp3 kernel: [ 237.335316] traps: ldmgtkgreet[15670] trap int3 ip:7fe33c4d7cd3 sp:7ffdf3751500 error:0 in libglib-2.0.so.0.4002.0[7fe33c488000+106000] May 2 19:24:04 ltsp3 kernel: [ 237.335991] ldm[15625]: segfault at 8 ip 0000000000404424 sp 00007ffe0cb4a590 error
09:57
4:05 ltsp3 kernel: [ 237.642480] mtrr: no MTRR for d0000000,1000000 found
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11:06
<alkisg>
!nbd
11:06
<ltsp>
I do not know about 'nbd', but I do know about these similar topics: 'disable-nbd-proxy', 'nbd-proxy', 'nbd-compression', 'quick-nbd-tests', 'nbd-client', 'nbd-server-bug', 'nbd-trusty-bug', 'nbd-client-breaks-nm', 'nbd-bug', 'nbd-checkupdate'
11:06
<alkisg>
!nbd-bug
11:06
<ltsp>
nbd-bug: To file a bug report against nbd, go to https://github.com/NetworkBlockDevice/nbd
11:07
<alkisg>
!nbd-checkupdate
11:07
<ltsp>
nbd-checkupdate: To avoid bug https://github.com/NetworkBlockDevice/nbd/issues/59, put this in lts.conf: INIT_COMMAND_RM_NBD_CHECKUPDATE="rm -rf /usr/share/ldm/rc.d/I01-nbd-checkupdate"
11:07
<alkisg>
HeyFootey: try this in lts.conf ^
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11:43
<HeyFootey>
Hi alksig, put the command in lts.conf, no change. Noted that the file being removed is still in the booted client image. Also, /etc/lts.conf on the booted client is not the tftpboot lts.conf (not sure if that is an issue). Will try manually removing I01-nbd-checkupdate from the chroot.
11:44
<quinox>
it should be executed inside the running client
11:45
if you still see the file inside the running client then yeah something went wrong with lts.conf
11:51
you're free to remove it from the image of course, rebuilding the image is a bit of a slow process whereas lts.conf is instant
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11:55
<alkisg>
HeyFootey: btw, thin clients or fat?
11:55
!smart
11:55
<ltsp>
I do not know about 'smart', but I do know about these similar topics: 'socat', 'story', 'sugar'
11:55
<alkisg>
Try X_SMART_COLOR_DEPTH=False too
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12:14
<HeyFootey>
Is thin client, X_SMART.. no change, manual remove I01-nbd-checkupdate no change, BUT found it still in the client booted image. Taking a look inside,it references /var/cache/ltsp/ltsp_config on the client to get NBD params. Issue is that in this file the image name is /opt/ltsp/amd64, but it should be /opt/ltsp/amd64u18b. How does this file get created?
12:27
<alkisg>
HeyFootey: when you say no change => if your lts.conf doesn't work, you're not testing
12:27
Check your tftp server logs on where lts.conf is searched
12:28
OK your custom name is probably to blame
12:28
Rename it to amd64, not amd64u18b
12:28
When you make it work fine, THEN customize it
12:28
Or symlink /var/lib/tftpboot/ltsp/amd64 to /var/lib/tftpboot/ltsp/amd64u18b
12:32
<HeyFootey>
Hmmm, currently have 4 seperate chroot's for a mix of thin and fat clients with different needs (teachers, students, admin, lab). Using DHCP and 14.04 this has worked wonderfully. <alksig>, is your PPA hard-wired to amd64?
12:41
Working remotely and have run out of clients to test against (the issue causes all of them to not be rebootable). Onsite tomorrow and will try with the image renamed to amd64. Thanks so much for the help so far, Good night from Australia.
12:42
cd plugins
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12:59
<quinox>
his life would be much easier with a KVM-over-IP device
13:07
(or vPro, etc.)
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13:29
<mwalters>
is there a reasonably priced one? (kvm over ip)
13:29
All the ones i have looked at have cost an arm and a leg =/
13:46
<quinox>
no personal experience, I was googling earlier and I found quite a few between $60 and $150
13:47
<||cw>
used ones aren't too bad, if you don't need USB
13:49
<mwalters>
yeah, that's another thing... all of our modern fatclients are hdmi/minidp only... :D
13:49
...and have no ps/2 ports
13:50
<||cw>
which makes it that much harder to implement
13:50
<mwalters>
All my servers have IPMI, so I have no need for it there... but it would be nice to have a client on one at each location
13:50
the ever growing "nice to have" list
13:51
"Nice to have but not worth that much money" list ;)
14:07
<adrianorg>
TIL with LTSP, if you have too many extra mount points in LOCAL_APPS_EXTRAMOUNTS, you may need to increase MaxSessions in sshd_config accordingly.
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14:39
<josefig3>
hey, gm guys :)
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15:27
<alkisg>
It sounds strange to need 4 chroots instead of just hiding a few apps
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