IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 28 March 2016 (all times are UTC)
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| 05:56 | <alkisg> !learn alkisg-todo as simplify cmdline checks, e.g. ltsp.init=/sbin/init-ltsp instead of "ltsp"
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| 05:56 | <ltsp> The operation succeeded.
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| 07:07 | <alkisg> !nbd-client
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| 07:07 | <ltsp> nbd-client: To try mounting the NBD image from the client initramfs: nbd-client 192.168.67.1 -N /opt/ltsp/i386 /dev/nbd0
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| 07:07 | <alkisg> !client-list
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| 07:07 | <ltsp> client-list: to get a list of all nbd-clients (which sometimes is the same as ltsp clients), run: netstat -tn | sed -n 's/.*:10809 *\([0-9.]*\):.*/\1/p' | sort -Vu
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| 14:02 | <frederickjh> Hi all! Just testing a server that I am getting ready to put into service. I tried to boot it without a network cable and it would not boot all the way. This on Ubuntu 14.04.4 with PNP-LTSP.
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| 14:02 | After boot the black and white text screen says:
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| 14:05 | BusyBox v1.21.1 (Ubuntu 1:1.21.0-1ubuntu1) built-in shell (ash)
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| 14:06 | Enter 'help' for a list of built-in commands.
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| 14:06 | (initramfs)
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| 14:07 | If I plug in a network cable and type exit it will then reboot, OK to the login screen.
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| 14:07 | Is this normal?
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| 14:07 | I never seen a Ubuntu or Linux that will not boot to the login without a network connection before.
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| 14:21 | <alkisg> frederickjh: what is your ltsp-server version? dpkg-query -W ltsp-server
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| 14:22 | And, `cat /proc/cmdline`
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| 14:24 | <frederickjh> ltsp-server 5.5.5~r2703+p1238+201512091628~ubuntu14.04.1
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| 14:25 | <alkisg> And the output of: cat /proc/cmdline
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| 14:25 | <frederickjh> BOOT_IMAGE=/vmlinuz-4.2.0-34-generic root=/dev/mapper/henderson--ltsp-root_file_system ro quiet splash vt.handoff=7
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| 14:25 | <alkisg> Right
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| 14:25 | !alkisg-todo
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| 14:25 | <ltsp> alkisg-todo: (#1) support xnbd-proxy for local caching: https://bitbucket.org/hirofuchi/xnbd/wiki/Home#!scenario-2-simple-proxy-server-distributed-copy-on-write, or (#2) Support UEFI, or (#3) support for per-user login commands in lts.conf, or (#4) put panic=60 in the kernel cmdline, or (#5) simplify cmdline checks, e.g. ltsp.init=/sbin/init-ltsp instead of "ltsp"
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| 14:25 | <alkisg> That (#5) there affects you
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| 14:26 | I fixed it this morning, I may push the change later on tonight
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| 14:26 | Can you file a bug report about it?
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| 14:26 | !ltsp-bug
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| 14:26 | <ltsp> ltsp-bug: To file a bug report for upstream LTSP, go to https://bugs.launchpad.net/ltsp
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| 14:27 | <alkisg> The problem is that you have "ltsp" in your disk name
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| 14:27 | It confuses the ltsp boot scripts into thinking that this is an ltsp client
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| 14:28 | <frederickjh> Oh,
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| 14:28 | If you fixed why should I file a bug report?
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| 14:28 | <alkisg> I didn't push the commit because I'll have to convince the debian maintainer that it's better to break compatibility in this case
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| 14:29 | The bug report will help me convince him :)
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| 14:29 | <frederickjh> Gotcha!
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| 14:29 | So there is not a bug report open on this already?
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| 14:30 | <alkisg> No
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| 14:32 | <frederickjh> What information do I give to prove that the ltsp in the volume name is causing the computer to hang at boot?
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| 14:33 | <alkisg> # cat /proc/cmdline
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| 14:33 | BOOT_IMAGE=/vmlinuz-4.2.0-34-generic root=/dev/mapper/my--ltsp-root_file_system ro quiet splash vt.handoff=7
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| 14:33 | That, along with the symptoms you're seeing, should be enough
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| 14:35 | * alkisg waves, later... | |
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| 14:37 | <||cw> is it the "--" that's the problem?
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| 15:00 | <frederickjh> alkisg thinks it is the ltsp in the volume name that makes it think it is a ltsp client booting and then hangs because it has no network connection. When we are booting the ltsp server.
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| 15:07 | root_file_system is the name of the LVM logical volume that is root of the file system. henderson-ltsp is the volume group name on the server that the LV belongs to.
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| 15:22 | <alkisg> frederickjh: did you file a bug report? do you know how to apply a patch?
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| 15:22 | <frederickjh> Just finished, the 2nd time.
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| 15:23 | First time it time out. Had to type it again.
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| 15:23 | ltsp in the device name on the LTSP server causes boot to hang https://bugs.launchpad.net/ltsp/+bug/1562911
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| 15:23 | yes
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| 15:23 | <alkisg> Ouch, didn't "back" in firefox show the typed message? anyway, let me get you the .diff..
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| 15:23 | <frederickjh> no
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| 15:24 | I was in chrome and it just went back to the create a new bug report. Where you enter the description.
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| 15:29 | <alkisg> OK, I pushed the commit, you can find the diff in the linked URL
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| 15:29 | (I commented in the bug report)
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| 15:29 | <frederickjh> Normally I can go back in chrome
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| 15:29 | Ok
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| 15:29 | Will something like patch -p1 < path/file.patch work?
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| 15:30 | <alkisg> client/Debian/share/initramfs-tools/scripts/init-premount/udhcp
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| 15:30 | You basically care about one line in that file, see the commend and link there
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| 15:30 | You can simply use nano, it's probably easier for 1 line
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| 15:30 | The rest of the files don't matter much in your specific case
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| 15:30 | <frederickjh> OK
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| 15:31 | <alkisg> In the real system, that's in /usr/share/initramfs/scripts/init-premount-udhcp
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| 15:32 | <frederickjh> On my system it seems to be /usr/share/initramfs-tools/scripts/init-premount/udhcp
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| 15:33 | Does that sound correct?
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| 15:33 | <alkisg> I mentioned two paths, the first path was the source tree path, the second the installed path
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| 15:33 | Whoops
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| 15:33 | Sorry, yes, I mistyped
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| 15:33 | <frederickjh> OK
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| 15:33 | <alkisg> What you said is correct
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| 15:34 | <frederickjh> I wondered when nano presented a black file to edit.
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| 15:34 | So I did some digging.
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| 15:37 | Ok, I manually applied the patch on line 44. I guess it is time to unplug the network cable and reboot to test.
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| 15:38 | <alkisg> frederickjh: did you run update-initramfs -u?
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| 15:40 | <frederickjh> nope, thats why i did not work.
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| 15:40 | Will do.
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| 15:43 | Ok, I confirm that the patch works here.
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| 15:43 | Thanks again for your help alkisg!
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| 15:44 | I want to do some stuff outside too today. Catch you later.
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| 15:44 | <alkisg> bb
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| 16:50 | <vagrantc> alkisg: so, that fix with ltsp in the device name probably means the server i was running that with had the init-ltsp.d hooks run on the live server?
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| 19:06 | <alkisg> vagrantc: yup, if it was matching the "-w" part (word boundary)
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| 19:06 | But note that I dropped the "ltsp" parameter completely,
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| 19:06 | so if you (or anyone) had any setups that relied on this, they should be changed to ltsp.init=/sbin/init-ltsp
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| 19:07 | I also replaced the chroot method with an indirect setting of initramfs' tools $init variable
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| 19:07 | !alkisg-todo
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| 19:07 | <ltsp> alkisg-todo: (#1) support xnbd-proxy for local caching: https://bitbucket.org/hirofuchi/xnbd/wiki/Home#!scenario-2-simple-proxy-server-distributed-copy-on-write, or (#2) Support UEFI, or (#3) support for per-user login commands in lts.conf, or (#4) put panic=60 in the kernel cmdline, or (#5) simplify cmdline checks, e.g. ltsp.init=/sbin/init-ltsp instead of "ltsp"
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| 19:07 | <alkisg> !forget alkisg-todo 5
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| 19:07 | <ltsp> The operation succeeded.
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| 19:08 | <alkisg> It was funny that I started working on this issue in the morning, and at noon frederickjh came here and reported this bug... even though it existed for years :)
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| 19:14 | <alkisg> vagrantc: another idea that I had is that we provide the sysvinit/upstart/systemd ltsp-core jobs in /usr/share/ltsp, and we symlink them by some init-ltsp.d script
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| 19:15 | That way they don't even exist when an ltsp-pnp server boots
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| 19:15 | <alkisg> If needed, distros can override their contents (both the job and the init-ltsp.d script) as they usually do with all the other ltsp scripts
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| 20:21 | <hammertime> Good day. I am trying to run ltsp on RHEL 6 and it seems the mirrors that used to provide those packages are no longer available.
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| 20:22 | ltsprepo.s3.amazonws.com and ltsp.repo.inode0.org
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| 20:22 | both appear to be offline. does anyone know of any other mirrors or how i could reconstruct my own?
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