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


Channel log from 31 August 2016   (all times are UTC)

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12:22
<dgroos>
Hi
12:22
Trying to troubleshoot login problem w/clients
12:24
I finally got AD binding working on my classroom ltsp-pnp server so I can ssh into a user account on the districts ldap server and a new account w/home directory is create.
12:24
that took several hours!
12:25
In the process, I can no longer log into the fat clients! I can't even log in as my regular admin (local) user.
12:26
So, the clients continue to boot fine, I've got internet access on the server, but... no login on clients.
12:27
Would anyone describe/list how to go about troubleshooting this? Thanks!
12:45
brb
12:50
back!
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13:13
<dgroos>
Alas, my classes are starting, but I'll be back every couple hours to check :-)
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13:28
<alkisg>
dgroos: https://bugs.launchpad.net/ltsp/+bug/1610304
13:28
If the user accounts all exist locally on the client, there's no need for ltsp to re-create them by fetching them from the server, so you need to apply that patch
13:29
Although, login should still be working and you should be having other issues... anyway, apply it first...
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14:26
<slog1235>
hello all I have a Liva Mini PC that is a Intel SOC how can do configure dnsmasq? and where to find the UEFI pxe files?
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14:45
<slog1235>
really stupid that you cant just tell the pxe room what to report
14:46
legacy mode i guess but of course that stupid thing does not have that
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15:22
<dgroos>
back
15:23
thanks alkisg I'll check it out.
15:28
alkisg, I downloaded the file and it says it should be: client/localapps/ldm-rc.d/X01-localapps so where would I 'put it'?
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15:39
<dgroos>
brb
15:45
b
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16:00
<slog1235>
Ok so i found http://boot.ipxe.org/
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16:04
<bennabiy>
alkisg: my nat is not working for my fat clients. It does not seem like resolv.conf is properly getting set
16:04
i can connect to ip addresses through nat, but not by dns resolution
16:04
<slog1235>
there is a file called resolv.conf knocking around
16:05
<dgroos>
bennabiy, I'm not alkisg but he helped me on this--did you add the sch-script file?
16:05
<bennabiy>
dgroos: nope
16:06
<dgroos>
I've seen others do this, let me try :-)
16:06
NAT
16:06
<bennabiy>
dgroos: I am using a 2-NIC setup
16:06
dgroos: you mean this?
16:06
!nat
16:06
<ltsp>
nat: To set up NAT in your LTSP server, set its internal IP to 192.168.67.1 and put http://bazaar.launchpad.net/~ts.sch.gr/sch-scripts/trunk/view/head:/debian/sch-scripts.if-up to /etc/network/if-up.d/sch-scripts. This also takes care of flow-control issues, possibly increasing your network speed 10 times. :)
16:06
<dgroos>
oops, didn't work!
16:06
thanks ltsp!
16:06
I'm using a 2nic setup too.
16:07
basically, wget that file, rename/mv it: /etc/network/if-up.d/sch-scripts
16:08
I don't even think you need to restart...
16:08
class starting, be back later!
16:09
<bennabiy>
dgroos: see you later
16:14
<slog1235>
pxe-service=X86-64_EFI, "boot from net uefi",/ltsp/i386/ipxe.efi
16:14
that should work right?
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16:23
<slog1235>
any one
16:24
dhcp-boot=net:uefi,/ltsp/i386/ipxe.efi
16:24
dhcp-option=vendor:uefi,9,2b
16:31
<bennabiy>
slog1235: using dnsmasq?
16:37
<slog1235>
yep
16:38
<vagrantc>
slog1235: it would be cool if you get pxe booting ipxe.efi working
16:38
<slog1235>
yep
16:38
I can work out what it actually is tho
16:38* vagrantc hasn't worked much with network booting EFI systems except in legacy mode
16:39
<slog1235>
is its X86-64_EFI or one of the other ones
16:39
like Intel_Lean_Client
16:39
<vagrantc>
depends on what you're trying to do
16:40
if you bump up the logging on dnsmasq you can check the logs for what strings it sends, i think
16:40
<slog1235>
the unit Is a Liva mini pc
16:40
it has a intel SOC 64bit celeron
16:40
and no legacy mode option in the bios ;(
16:41
ah yeah was going to ask aswell where is the log file?
16:41
so I can watch it during the negotiations
16:43
<vagrantc>
in debian-based systems, should be in /var/log/syslog
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16:48
<slog1235>
ok vagrantc
16:48
i got the dump :) and it look juicy
16:48
looks
16:50
Aug 31 17:48:12 ncoredump-HVM-domU dnsmasq-dhcp[6594]: 4056230381 vendor class: PXEClient:Arch:00007:UNDI:003016
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17:06
<slog1235>
vagrantc we can continue tommorow
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18:23
<alkisg>
slog1235: you don't need ipxe if your client has uefi netboot support, you only need grub+net.efi in tftp
18:24
Unfortunately last time I checked, syslinux.efi wasn't good enough, so grub was the one that worked best
18:24
ipxe.efi works in you put it locally on some media, but it's not as good as the real firmware
18:24
Many issues, slow tftp downloads etc
18:29
<bennabiy>
vagrantc: I would like to get ipxe.efi working as well
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18:31
<vagrantc>
i barely have any EFI systems to test with ...
18:31
to add to my already longish todo list
18:31
<bennabiy>
I got two of those clients alkisg was recommending, but they are totally efi with no legacy oprom
18:32
<vagrantc>
but efi network boot?
18:32
<bennabiy>
yes
18:33
also, my nat is half working, but dns is not working on my fat clients
18:34
do you have to have DNS_SERVER in lts.conf for it to work?
18:39
<vagrantc>
should default to the LTSP server as a dns server
18:42
<dgroos>
bennabiy: so the sch-script file didn't help?
18:44
Can anyone tell me how to apply the fix on this page: https://bugs.launchpad.net/ltsp/+bug/1610304
18:47
<bennabiy>
dgroos: that did not resolve my dns issue, no
18:54
<dgroos>
bennabiy, you do ltsp-pnp? as per: https://help.ubuntu.com/community/UbuntuLTSP/ltsp-pnp
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19:09
<bennabiy>
I did this time
19:09
I am thinking about just generating a thin client and making it fat
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19:52
<alkisg>
bennabiy: the DNS servers on the client come from DHCP, or lts.conf, or the server itself is used if it does have a dns server running
19:53
bennabiy: but if you're using IPAPPEND 3, then the DHCP ones are not available to the client, so you only have the other 2 options
19:55
<bennabiy>
I am using a 2nic setup and isc-dhcp
19:56
not dnsmasq
19:56
<alkisg>
bennabiy: well then, if you're running bind
19:56
isc-dhcp is not a dns server, so it's not valid for option (3)
19:57
<bennabiy>
yes
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20:21
<dgroos>
Ah... re-re-re-reading I see about editing a file... :-p
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20:27
<dgroos>
good luck bennabiy
20:27
heading off!
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20:29
<bennabiy>
I am having issues finding that grub+net.efi file alkisg
20:47
testing uefi netboot now...
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21:02
<bennabiy_>
alkisg, vagrantc : I am live booted to a usb disk on this nexbox. How do I put a local kernel + initrd which will work with ltsp for a fat client?
21:03
uefi did not work with what I found to do in kiwi
21:04
<vagrantc>
bennabiy: i'm really not familiar with modern x86 systems
21:04
<bennabiy_>
vagrantc, do you know how to get android working on a pi2?
21:04
:)
21:04
<vagrantc>
at some point in the increasingly near future i'll have to fix that
21:05
not the pi2
21:05* vagrantc is working on getting debian running on an arm chromebook
21:05
<bennabiy_>
we are trying to get rid of cell phones and make our own iax phones
21:05
<vagrantc>
interesting!
21:05
<bennabiy_>
yes
21:06
do you know how to set up a build environment for the pi2 on x86?
21:06* vagrantc pouts that people focus so much on the pi when there are so many other more interesting platfoorms
21:07
<vagrantc>
bennabiy_: not pi specifically, but i do all sorts of crossbuilding for armhf/armel/arm64 on debian
21:08
<bennabiy_>
pi2 is armhf right?
21:09
<vagrantc>
yeah, it can do armhf
21:09
most images use raspbian which is armhf for armv6 (vs. armv7 of most distributions)
21:10
<bennabiy_>
pi2 is v7?
21:10
or pi3?
21:10* bennabiy_ = arm noob
21:10
<vagrantc>
pi2 can run debian armhf, so is v7 capable.
21:11
<bennabiy_>
that is what I thought
21:11
how do you crossbuild?
21:12
<vagrantc>
i mostly build packages, and recent versions of sbuild and the debian toolchain essentially support it out of the box (or nearly so) for some packages, such as linux and u-boot.
21:13
<bennabiy_>
I need to try to build some packages, but might need to build a kernel as well
21:13
I need to build in lcd support
21:15
vagrantc, do you do anything for iax?
21:15
I might need to write something to replace zoiper...
21:16
alkisg, I am where I can replace things on this nexbox. What do you recommend for installing to the sdcard?
21:16
needs to be uefi
21:17
<vagrantc>
bennabiy_: just aware of it's existence
21:21
<bennabiy_>
vagrantc, ok
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23:06
<dgroos>
I got directed to a patch for a bug on launchpad and that was good.
23:07
The 'bug description' on the page notes: "Alkisg provided a fix on my instance of LTSP (by editing the X01-localapps file)"
23:08
When I download the .patch file I see every line starting with a + or a -. I figure those were the added/removed lines.
23:10
I guessed that one 'applies' a patch by... deleting lines in the filesystem version of the file that had -'s next to them and pasting in the lines with the +'s next to them.
23:10
right, I don't know how this works.
23:11
I don't think I just replace the filesystem version of the file with the .patch file--that doesn't seem correct.
23:15
<vagrantc>
there's a program called patch that does most of the work for you :)
23:15
dgroos: but your rough read of what it's describing sounds about right
23:16
<dgroos>
As I was writing my frustrations above I thought: "I wonder if anyone has ever asked how to do this before"
23:16
I found a forum page: How the heck do I use a launchpad patch?
23:17
:) thanks vagrantc
23:28
cool! sudo patch < X01-localapps.patch
23:28
returned: patching file X01-localapps
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