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A friend suggested this channel for asking a question i am having a really hard time with
..about ASCII Control Codes, how to use them, and particularly how to read the preset key map for a telnet client i am using.
The Chrome OS version of the client is found here, http://www.mochasoft.dk/chrome_tn5250.htm
If you go into the settings, then 'Key Data', you will see there are a bunch of Esc codes preset on the f keys. How do i find out what these mean?
I have been able to map these keys to strings of text mixed with /015 (Carriage Return) and /014 (Space) to create some very useful macros, but i want to know what else i can do with them. Specifically, i'm hoping there is a way i can embed the content of my clipboard into the sequences.
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modalsurrealist: that's not really ltsp related...
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nfs over tcp not available ltsp why this?
Uzzi, why do you say that?
I believe it's fine... which distro/version?
nfsmount should support tcp nfs fine
It's part of klibc
Maybe you haven't set up nfs correctly
/srv/tftp 172.16.1.0/24(sync,ro,no_root_squash,nohide) /opt/ltsp 172.16.1.0/24(sync,ro,no_root_squash,nohide)
Can you mount /opt/ltsp/i386 from another pc?
You don't need to serve /srv/tftp with nfs, by the way...
mount: special device 172.16.6.75/opt/ltsp does not exist
now I've mount 172.16.6.75:/opt/ltsp on a pc
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Uzzi: and your ltsp clients still can't boot?
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can comeone give me a clue why my usb pen is not recognized, please
when I open a localapps term and make a dmesg, I can see that it is detected
but the automatic mount is not done
in my lts.conf I have LOCALDEV=True
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my 2 cents....https://wiki.debian.org/LTSP/Howto worked out better for PNP than any ubuntu reference i have touched.
|15:41||work_alkisg is now known as alkisg|
danau11: that's mostly copied from my ltsp-pnppage :)
ltsp-pnp: ltsp-pnp is an alternative (upstream) method to maintain LTSP installations for thin and fat clients that doesn't involve chroots: https://help.ubuntu.com/community/UbuntuLTSP/ltsp-pnp
Uzzi: do you get a busybox (initramfs) shell? does nfsmount work from there?
thanks alkisg my troubles with the ubuntu reference all stem from network manager using dnsmasq and the SYSLINUX/PXELINUX troubles with the file locations not matching the kernal-update scripts
danau11: I've updated the ppa 2 years ago, so it should now be able to handle newer pxelinu
About network-manager, I complained a lot at the ubuntu devs but ... :-/
The workaround in the page should work fine though
I.e. to tell network-manager not to spawn its own resolver
ya i got around that one
I'm not aware of any issues not covered in that page
If you find one, ping me
but the newer ubuntu builds seem to shuffle the file locations for pxeconfig.0 etc
let me crank up my test machine and i will check file locations
You mean non-lts versions?
let me check for accuracy
Sorry I don't upload ltsp for non-lts ubuntu versions in the greek schools ppa...
With 9 months of support, I think they're only good for devs, not users
Btw, if debian works fine for you, keep it, there's no need to switch to ubuntu for ltsp, it's not that it's better supported there...
let me get them side by side and share what i can not based on my memory
alkisg: netbooting dskless
Uzzi: I don't understand what you're saying... maybe you could write bigger sentences
askisg, its Ubuntu 14.10 so you are correct its not LTS
so we can call this my problem for not paying attention
OK, I'm writing to the top of that page that only 12.04 and 14.04 are supported :)
If you really want to, you can use the ltsp daily ppa temporarily
I think I've posted ltsp builds there for 14.10 too...
But... better don't :)
no noted it and highlighted it and i missed it so my fault
thanks for the guide
danau11: the pxelinux file locations changing has been reported in launchpad for quite some time with no action
danau11: ltsp apparently needs a maintainer in ubuntu
stgraber: ^^^ please drop the ubuntu diff and let it sync with debian... :)
It doesn't even boot anymore
i think the main difference at this point was the debian-installer .udeb
i could probably write up some conditional logic based on install environment
|15:57||* vagrantc has also been meaning to add support for the ltsp-pnp image generation to the .udeb|
should be trivial...
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|15:58||* alkisg wonders if we have to rename ltsp to something else in order to drop all obsolete code there... :)|
IIRC we still had a bit of Edubuntu delta so can't just sync but we can certainly drop most of the delta on the floor
unfortunately we don't have an open development release now so not much I can do about it until we do
stgraber: me and I think vagrantc are willing to make it work in ubuntu 15.10 if you're willing to accept that it will be the same as in debian
I.e. no ltsp-cluster bits, no nbd-proxy, defaults to 192.168.67.x and whatever else debian has
I can test with vagrantc's ltsp-debian-packaging plus ltsp-trunk/ldm-trunk etc, with a launchpad recipe for 15.10
But I'm not willing to do it if ubuntu has its own tree for packaging
(with the X-Ubuntu-XXX directives in debian/control, we shouldn't need a different tree..)
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ERROR: ltsp chroot not found: /opt/ltsp/i686 but ls /opt/ltsp/--->i386
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alkisg: I don't care about most of those things, but I do care about not breaking Edubuntu and IIRC we have a chunk of code in the ltsp postinst for that which we'd need to relocate
stgraber: which part are you talking about?
AFAIK edubuntu is broken currently...
(well, if one installs 14.10 + edubuntu desktop)
stgraber: in any case, that's good news, I think they mean that we can start working on this
vagrantc: this script disables flow control (i.e. 10 times faster networking when applicable) and does NAT for 192.168.67.1, do you think it can go to ltsp/debian/ltsp-server.if-up?
I finally got it to work with mii-tool too today, instead of just ethtool
So realteks and non-manageable switches are no longer a problem
(we had to buy hundreds of intel NICs + managed switches previously just for this problem...)
|16:49||* vagrantc looks|
Intel, broadcom, marvel, nvidia nics work with ethtool, while realtek, atheros etc with mii-tool, so far I had 100% success in the tests I did at some schools
alkisg: mucking with firewalling rules by default doesn't seem safe to me
vagrantc: we can put an option for the NAT, but if someone has ip=192.168.67.1, I believe that he does want NAT for his clients
E.g. NAT=True in /etc/default/ltsp
Or in /etc/ltsp/ltsp-server.conf
there is no magic to 192.168.67.1 == LTSP
Or even NAT=192.168.67.1
Why not? debian-edu even gives specific IPs to specific roles
No problem though, you're the debian maintainer, I'm just throwing the idea
we can move from sch-scripts to ltsp whatever you like, I'll keep the rest inside sch-scripts
The flow control part is more significant than the NAT part though
regarding the mii-tool/ethtool stuff ... it depends on the vendor which needs to be called? ideally we'd want something a little less shotgun approach
I haven't found a solution online the last 3 years I've been looking into it
i.e. run the appropriate tool for the appropriate vendor, etc.
We don't know which vendor supports which tools
We have to do feature detection instead of vendor/version detection
Some even claim they support a tool, but they don't
It's a very common issue on the web, but I've seen it applies on linux a lot too
does: output=$(/bin/false) actually return true ?
Example, the same vendor and NIC need autoneg on / rx off in ubuntu 10.04, and then autoneg off / rx off in ubuntu 12.04
what a mess.
An assignment doesn't change $?
alkisg: your code is fine with that.
|16:58||* vagrantc guessed badly before testing|
OK, feel free to copy whatever you think is worth it to go to debian/ltsp-server.if-up... just ping me to remove it from sch-scripts then
Ah we can arrange for some time to work together on the packaging if you like
To take care the ubuntu .diff drop as well
alkisg: so your code doesn't run mii-tool if ethtool works?
And if ethtool reports that it's already disabled, it doesn't run anything
The combinations to make it work were very tricky, I think it's ok now though, as clean as it can be...
The correct way would be for all network modules to expose a parameter for flow-control in modprobe.conf
that you need to call it with seemingly exact arguments on different cards seems bizarre. not that i'm contesting that's the reality of it... but eesh.
But only a couple of them provide that
A couple of years ago I even asked in the kernel's networking list, but got no answer for any good way to disable flow control
alkisg: i'd say go ahead and commit it minus the iptables stuff
vagrantc: I don't have commit access to debian/
Should I commit it to /usr/share/ltsp-server/disable-flow-control, and then packagers can call it from their if-up scripts?
.../usr/share/ltsp/disable-flow-control, sorry, I forgot we put everything there
alkisg: that sounds like a reasonable approach.
|17:17||* vagrantc forgot we don't have directories to dump everything into|
the client/share could be extended to client/etc, server/etc, etc.
with client/Debian/etc ...
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good day. Where can I send a donation for ltsp?
i should ask first, do you accept paypal donation?
i'm not sure we've set up a donation infrastructure
i've toyed with the idea of proposing some crowdfunding ideas for specific features and dvelopment
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