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


Channel log from 20 March 2019   (all times are UTC)

00:40vagrantc has left IRC (vagrantc!~vagrant@unaffiliated/vagrantc, Quit: leaving)
02:03ogra has left IRC (ogra!~ogra_@ubuntu/member/ogra, Ping timeout: 255 seconds)
03:42vagrantc has joined IRC (vagrantc!~vagrant@unaffiliated/vagrantc)
06:08woernie has joined IRC (woernie!~werner@pD9E8B7B2.dip0.t-ipconnect.de)
06:30spaced0ut has left IRC (spaced0ut!~spaced0ut@unaffiliated/spaced0ut, Ping timeout: 268 seconds)
06:56ricotz has joined IRC (ricotz!~ricotz@ubuntu/member/ricotz)
07:10woernie has left IRC (woernie!~werner@pD9E8B7B2.dip0.t-ipconnect.de, Remote host closed the connection)
07:49vagrantc has left IRC (vagrantc!~vagrant@unaffiliated/vagrantc, Quit: leaving)
09:00GodFather has left IRC (GodFather!~rcc@wsip-66-210-242-210.ph.ph.cox.net, Read error: Connection reset by peer)
09:01GodFather has joined IRC (GodFather!~rcc@wsip-66-210-242-210.ph.ph.cox.net)
09:07ogra_ has joined IRC (ogra_!~ogra_@p5098ed03.dip0.t-ipconnect.de)
09:22woernie has joined IRC (woernie!~werner@p578bb7b6.dip0.t-ipconnect.de)
13:57spaced0ut has joined IRC (spaced0ut!~spaced0ut@unaffiliated/spaced0ut)
14:50Faith has joined IRC (Faith!~Paty_@unaffiliated/faith)
16:24vagrantc has joined IRC (vagrantc!~vagrant@unaffiliated/vagrantc)
16:30woernie has left IRC (woernie!~werner@p578bb7b6.dip0.t-ipconnect.de, Remote host closed the connection)
17:29Leandro_ has joined IRC (Leandro_!c891b51d@gateway/web/freenode/ip.200.145.181.29)
17:37
<Leandro_>
Hello guys. I'm currently trying to run an ltsp server over ubuntu-mate-amd64-18.04. I need both 32 and 64bits clients to be able to run, so I have a chroot-less amd64 running well, and made a chroot i386 build. The problem is that when I try to login the i386 client, I get hte following message on client screen: Error: Unknown error in reply to NBD_OPT_GO; cannot continue. Then I drop to a initramfs prompt.
17:37adrianor1 has joined IRC (adrianor1!~adrianorg@187.113.250.92)
17:38
<Leandro_>
What config file should be helpful for me to share?
17:38
<alkisg>
Leandro_: that's just a misconfiguration on nbd-server or dnsmasq
17:38
<vagrantc>
check the logs on the server, maybe it's getting the wrong NBD image
17:39
<alkisg>
Are you sure that a single 32bit installation isn't best for you?
17:39
How much RAM does your server or your best client have?
17:40adrianorg has left IRC (adrianorg!~adrianorg@177.156.224.28, Ping timeout: 246 seconds)
17:40
<Leandro_>
The RAM on my server is not really and issue. But my clients are some old 4GB RAM All-in-one, that are able to run 64-bits, but I have also some old HP thin-clients, that I think have only 512MB RAM and are only 32-bits
17:41
<alkisg>
Leandro_: 32bit installations have problems with much ram, so the server ram is an issue, if it's over 8gb
17:41
the 4gb clients will function about the same with 32 or 64bit
17:41
So if you have <=8 gb ram on the server, I would go for a single 32bit installation
17:42
Much easier to maintain, with no real drawbacks in this scenario
17:42
My second choice would be a 32bit installation with an additional 64bit kernel for the server
17:43
The dual chrootless/chroot setup would be 3rd or lower choice...
17:44
<Leandro_>
Could you elaborate a little bit on your second choice please?
17:44
<alkisg>
Could you mention your server ram?
17:44
It will make the chat easier
17:45
So the idea is, you install/maintain a 32bit chrootless setup. The clients perform fine. The drawbacks are: some apps like e.g. viber are 64-bit only,
17:46
<Leandro_>
Sure, I have between 4GB, up to 8GB if necessary. It is a VM.
17:46
<alkisg>
and, there's a bug where if you have 32bit and e.g. 10+ GB RAM, the *disk* performance is 100 times slower
17:46
<highvoltage>
alkisg: ah I haven't considered that one... interesting
17:46
<alkisg>
So, in cases where the server ram is 10+ gb, we install a 64bit kernel
17:46
so that the server disk access remains fast, i.e. it doesn't hit that bug
17:47
<vagrantc>
!pae
17:47
<ltsp>
I do not know about 'pae', but I do know about these similar topics: 'non-pae'
17:47
<alkisg>
So in your case, you'd just go with 32bit chrootless and nothing more
17:47
<vagrantc>
that's a really annoying bug that will probably never get fixed :(
17:47
<alkisg>
You don't need 64bit, you don't need two kernels
17:47
<vagrantc>
since most development has moved on to 64bit...
17:48
<alkisg>
Yeah. I do think it makes 64bit hard disk access 2-3 times slower, but noone has cared enough now to solve it, with SSDs and all
17:48
I hope some time in the future I'll see a phoronix article "developer solves 10 year old issue, making disk access 2-3 times faster" :D
17:49
(i mean, it affects 64bit too, but a lot less than 32bit)
17:49
<vagrantc>
oh, didn't know it caused issues on 64bit
17:49
(even if more hidden)
17:50Leandro_ has left IRC (Leandro_!c891b51d@gateway/web/freenode/ip.200.145.181.29, Ping timeout: 256 seconds)
17:54Leandro_ has joined IRC (Leandro_!c891b51d@gateway/web/freenode/ip.200.145.181.29)
17:55
<Leandro_>
Sorry, my ISP went down
17:55
Could please forward your last messages again?
17:56
<alkisg>
!logs
17:56
<ltsp>
logs: http://irclogs.ltsp.org/
17:58
<Leandro_>
Thank you. I will go with your solution where I use only 32-bits image. I don't think I'll need much more applications other than the stock ones ubuntu provides.
17:58
Thanks a lot alkisg.
17:58
<alkisg>
You're welcome
17:59Leandro_ has left IRC (Leandro_!c891b51d@gateway/web/freenode/ip.200.145.181.29, Client Quit)
18:05woernie has joined IRC (woernie!~werner@pD9E8B7B2.dip0.t-ipconnect.de)
18:41
<||cw>
size = 202223351MBErrir: Exported device is too big get a 64-bit machine
18:41
I have a 64bit machine in this case, but will have 32bit ones, so i have a 32bit kernel and 32bit server
18:42
the img file is 1.5GB though, so what happened here?
18:42
<alkisg>
||cw: that usually means wrong path, broken symlinks for the image etc
18:43
Those nbd errors are really cryptic :)
18:43
Check the path mentioned in ltsp_amd64.conf vs the real image path in the disk
18:45
<||cw>
path is fine
18:48
does ndb not put anything in syslog?
18:56
ok I found the issue. my dhcp/pxe is doing it, it's connecting to the wrong server. it also doens't seem to be downloading lts.conf from tftp
18:58ogra_ has left IRC (ogra_!~ogra_@p5098ed03.dip0.t-ipconnect.de)
18:59ogra has joined IRC (ogra!~ogra_@ubuntu/member/ogra)
19:20adrianorg has joined IRC (adrianorg!~adrianorg@187.115.110.86)
19:23adrianor1 has left IRC (adrianor1!~adrianorg@187.113.250.92, Ping timeout: 272 seconds)
19:27adrianorg has left IRC (adrianorg!~adrianorg@187.115.110.86, Ping timeout: 255 seconds)
19:38
<||cw>
procress, new error. Error in rely to NBD_OPT_GO, and the server says spawn child, then say failed, no child
19:50adrianorg has joined IRC (adrianorg!~adrianorg@189.114.158.245)
20:09epoptes_user3 has joined IRC (epoptes_user3!4634614d@gateway/web/freenode/ip.70.52.97.77)
20:12
<epoptes_user3>
Hello. I have debian stretch installed and epoptes 0.5 that work fine except for full screen broadcast. How can i install the version one of epoptes without using the ubuntu ppa repository (ts_sch_gr-ubuntu-ppa-disco)? Thanks.
20:13
<vagrantc>
hmmm...
20:14
i could try and backport it to stretch to make it available via stretch-backports
20:14
but the next release of debian is coming out soon, so not sure how much free time i have for it
20:15
really need to spend some more time testing the next release of ltsp...
20:15
er, debian
20:16
epoptes_user3: you might be able to just install one of the alternate vnc viewers, the default installed with epoptes on debian might lack some features ...
20:19
oh, it switched to python3 ... that might be hard to backport
20:20
if the appropriate python3 dependencies aren't available in stretch, it would be a large project
20:23
<epoptes_user3>
OK i understand that i will have to wait for next stretch update. Efcaristo poly (merci beaucoup)
20:24
<vagrantc>
no, it most likely will never end up in stretch
20:24
will have to wait till buster
20:25
which is hopefully not *too* long
20:27epoptes_user3 has left IRC (epoptes_user3!4634614d@gateway/web/freenode/ip.70.52.97.77, Quit: Page closed)
20:33woernie has left IRC (woernie!~werner@pD9E8B7B2.dip0.t-ipconnect.de, Remote host closed the connection)
20:37Faith has left IRC (Faith!~Paty_@unaffiliated/faith, Quit: Leaving)
21:28kjackal has left IRC (kjackal!~quassel@2a02:587:3119:ef00:39ef:42dd:f5e8:3018, Ping timeout: 258 seconds)
21:53ricotz has left IRC (ricotz!~ricotz@ubuntu/member/ricotz, Remote host closed the connection)
23:58adrianor1 has joined IRC (adrianor1!~adrianorg@179.177.209.122.dynamic.adsl.gvt.net.br)