IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 31 August 2016 (all times are UTC)
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| 12:22 | <dgroos> Hi
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| 12:22 | Trying to troubleshoot login problem w/clients
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| 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.
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| 12:24 | that took several hours!
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| 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.
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| 12:26 | So, the clients continue to boot fine, I've got internet access on the server, but... no login on clients.
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| 12:27 | Would anyone describe/list how to go about troubleshooting this? Thanks!
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| 12:45 | brb
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| 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
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| 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
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| 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
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| 14:46 | legacy mode i guess but of course that stupid thing does not have that
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| 15:22 | <dgroos> back
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| 15:23 | thanks alkisg I'll check it out.
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| 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
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| 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
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| 16:04 | i can connect to ip addresses through nat, but not by dns resolution
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| 16:04 | <slog1235> there is a file called resolv.conf knocking around
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| 16:05 | <dgroos> bennabiy, I'm not alkisg but he helped me on this--did you add the sch-script file?
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| 16:05 | <bennabiy> dgroos: nope
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| 16:06 | <dgroos> I've seen others do this, let me try :-)
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| 16:06 | NAT
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| 16:06 | <bennabiy> dgroos: I am using a 2-NIC setup
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| 16:06 | dgroos: you mean this?
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| 16:06 | !nat
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| 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. :)
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| 16:06 | <dgroos> oops, didn't work!
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| 16:06 | thanks ltsp!
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| 16:06 | I'm using a 2nic setup too.
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| 16:07 | basically, wget that file, rename/mv it: /etc/network/if-up.d/sch-scripts
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| 16:08 | I don't even think you need to restart...
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| 16:08 | class starting, be back later!
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| 16:09 | <bennabiy> dgroos: see you later
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| 16:14 | <slog1235> pxe-service=X86-64_EFI, "boot from net uefi",/ltsp/i386/ipxe.efi
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| 16:14 | that should work right?
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| 16:23 | <slog1235> any one
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| 16:24 | dhcp-boot=net:uefi,/ltsp/i386/ipxe.efi
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| 16:24 | dhcp-option=vendor:uefi,9,2b
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| 16:31 | <bennabiy> slog1235: using dnsmasq?
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| 16:37 | <slog1235> yep
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| 16:38 | <vagrantc> slog1235: it would be cool if you get pxe booting ipxe.efi working
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| 16:38 | <slog1235> yep
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| 16:38 | I can work out what it actually is tho
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| 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
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| 16:39 | like Intel_Lean_Client
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| 16:39 | <vagrantc> depends on what you're trying to do
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| 16:40 | if you bump up the logging on dnsmasq you can check the logs for what strings it sends, i think
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| 16:40 | <slog1235> the unit Is a Liva mini pc
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| 16:40 | it has a intel SOC 64bit celeron
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| 16:40 | and no legacy mode option in the bios ;(
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| 16:41 | ah yeah was going to ask aswell where is the log file?
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| 16:41 | so I can watch it during the negotiations
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| 16:43 | <vagrantc> in debian-based systems, should be in /var/log/syslog
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| 16:48 | <slog1235> ok vagrantc
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| 16:48 | i got the dump :) and it look juicy
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| 16:48 | looks
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| 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
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| 18:24 | Unfortunately last time I checked, syslinux.efi wasn't good enough, so grub was the one that worked best
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| 18:24 | ipxe.efi works in you put it locally on some media, but it's not as good as the real firmware
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| 18:24 | Many issues, slow tftp downloads etc
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| 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 ...
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| 18:31 | to add to my already longish todo list
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| 18:31 | <bennabiy> I got two of those clients alkisg was recommending, but they are totally efi with no legacy oprom
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| 18:32 | <vagrantc> but efi network boot?
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| 18:32 | <bennabiy> yes
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| 18:33 | also, my nat is half working, but dns is not working on my fat clients
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| 18:34 | do you have to have DNS_SERVER in lts.conf for it to work?
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| 18:39 | <vagrantc> should default to the LTSP server as a dns server
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| 18:42 | <dgroos> bennabiy: so the sch-script file didn't help?
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| 18:44 | Can anyone tell me how to apply the fix on this page: https://bugs.launchpad.net/ltsp/+bug/1610304
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| 18:47 | <bennabiy> dgroos: that did not resolve my dns issue, no
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| 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
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| 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
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| 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
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| 19:55 | <bennabiy> I am using a 2nic setup and isc-dhcp
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| 19:56 | not dnsmasq
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| 19:56 | <alkisg> bennabiy: well then, if you're running bind
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| 19:56 | isc-dhcp is not a dns server, so it's not valid for option (3)
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| 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
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| 20:27 | heading off!
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| 20:29 | <bennabiy> I am having issues finding that grub+net.efi file alkisg
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| 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?
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| 21:03 | uefi did not work with what I found to do in kiwi
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| 21:04 | <vagrantc> bennabiy: i'm really not familiar with modern x86 systems
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| 21:04 | <bennabiy_> vagrantc, do you know how to get android working on a pi2?
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| 21:04 | :)
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| 21:04 | <vagrantc> at some point in the increasingly near future i'll have to fix that
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| 21:05 | not the pi2
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| 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
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| 21:05 | <vagrantc> interesting!
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| 21:05 | <bennabiy_> yes
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| 21:06 | do you know how to set up a build environment for the pi2 on x86?
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| 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
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| 21:08 | <bennabiy_> pi2 is armhf right?
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| 21:09 | <vagrantc> yeah, it can do armhf
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| 21:09 | most images use raspbian which is armhf for armv6 (vs. armv7 of most distributions)
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| 21:10 | <bennabiy_> pi2 is v7?
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| 21:10 | or pi3?
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| 21:10 | * bennabiy_ = arm noob | |
| 21:10 | <vagrantc> pi2 can run debian armhf, so is v7 capable.
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| 21:11 | <bennabiy_> that is what I thought
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| 21:11 | how do you crossbuild?
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| 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.
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| 21:13 | <bennabiy_> I need to try to build some packages, but might need to build a kernel as well
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| 21:13 | I need to build in lcd support
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| 21:15 | vagrantc, do you do anything for iax?
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| 21:15 | I might need to write something to replace zoiper...
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| 21:16 | alkisg, I am where I can replace things on this nexbox. What do you recommend for installing to the sdcard?
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| 21:16 | needs to be uefi
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| 21:17 | <vagrantc> bennabiy_: just aware of it's existence
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| 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.
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| 23:07 | The 'bug description' on the page notes: "Alkisg provided a fix on my instance of LTSP (by editing the X01-localapps file)"
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| 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.
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| 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.
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| 23:10 | right, I don't know how this works.
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| 23:11 | I don't think I just replace the filesystem version of the file with the .patch file--that doesn't seem correct.
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| 23:15 | <vagrantc> there's a program called patch that does most of the work for you :)
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| 23:15 | dgroos: but your rough read of what it's describing sounds about right
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| 23:16 | <dgroos> As I was writing my frustrations above I thought: "I wonder if anyone has ever asked how to do this before"
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| 23:16 | I found a forum page: How the heck do I use a launchpad patch?
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| 23:17 | :) thanks vagrantc
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| 23:28 | cool! sudo patch < X01-localapps.patch
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| 23:28 | returned: patching file X01-localapps
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