IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 23 August 2016 (all times are UTC)
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| 14:04 | <bennabiy> on my server, I have a crypttab entry which when I do the ltsp-pnp method of generation, it gets transferred to the fat client image... it causes the boot to hang for 1 1/2 minutes while waiting for those devices
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| 14:04 | how do I disable that?
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| 14:05 | I want the fat client to be able to have proper fstab entries for those devices, if I need to mount them on the fat client, but I do not need it waiting to try to find the encrypted devices which exist on the server but not the client
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| 14:06 | alkisg: Can we unlock the LTSP / Ubuntu wiki to clean up what is VERY outdated (so as to not confuse people?)
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| 14:06 | I do not have editing rights to the wiki
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| 14:30 | <bennabiy> alkisg: how do I cache the image to local disk?
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| 14:37 | I can see why people get confused about LTSP. All the initial information they are presented with is layers thick with old heritage...
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| 14:38 | I wish we could make a single subcategory which everything pre-12.04 would go into, to not clutter up the displaying of current or potentially needed information
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| 15:52 | <bennabiy> alkisg: regarding those mini nexbox, they do not have gigabit networking
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| 16:12 | <alkisg> (05:06:38 μμ) bennabiy: alkisg: Can we unlock the LTSP / Ubuntu wiki to clean up what is VERY outdated (so as to not confuse people?) ==> I think that's in #ubuntu-doc... I gave up on ubuntu ltsp wiki a lot of time ago and I'm only maintaining 2 pages there
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| 16:12 | !local
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| 16:12 | <ltsp> I do not know about 'local', but I do know about these similar topics: 'install-localapp', 'localdev', 'localapps-print', 'RDP-localdev', 'localapps', 'LocaldevCommonGroupWorkaround', 'localxterm', 'local-disks', 'local-boot'
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| 16:12 | <alkisg> !local-disks
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| 16:12 | <ltsp> local-disks: On fat clients, only sudoers have access to local disks. One way to give access to non sudoers, is to put in lts.conf: RCFILE_01="mkdir -p /media/local_disk && mount /dev/sda1 /media/local_disk"
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| 16:12 | <alkisg> !local-boot
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| 16:12 | <ltsp> local-boot: If you want LTSP fat clients on a low-speed network, you can put i386.img on e.g. C:\Boot\LTSP\i386.img and use this command line in pxelinux.cfg: APPEND ro initrd=ltsp/i386/initrd.img init=/sbin/init-ltsp root=/dev/sda1 rootflags=ro loop=/Boot/LTSP/i386.img; IPAPPEND 3
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| 16:13 | <alkisg> (05:38:03 μμ) bennabiy: I wish we could make a single subcategory which everything pre-12.04 would go into, to not clutter up the displaying of current or potentially needed information ==> if someone decides to work for a few days on the ubuntu wiki, he could surely do that, it would be welcomed by the community
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| 16:13 | On the other hand, the ltsp.org wiki is pretty clean, one may use that instead
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| 16:13 | <bennabiy> alkisg: It would be good to point the UbuntuWiki to lead people to the ltsp one
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| 16:14 | <alkisg> (06:52:18 μμ) bennabiy: alkisg: regarding those mini nexbox, they do not have gigabit networking ==> ouch, that's bad. But not too bad since they're fat clients and the server<=>switch connection is still gigabit
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| 16:14 | bennabiy: feel free to do whatever you want with the ubuntultsp wiki, I don't think anyone has worked there in ages
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| 16:14 | <bennabiy> alkisg: so I would need to talk to them in #ubuntu-docs?
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| 16:15 | <alkisg> bennabiy: normally you'd just sign up and do whatever you want
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| 16:15 | <bennabiy> alkisg: all immutable pages
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| 16:15 | <alkisg> You might need to join a few launchpad teams if you want to be able to delete pages
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| 16:16 | <bennabiy> I have no editing rights to them
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| 16:16 | <alkisg> Let me see which group I'm in...
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| 16:16 | <bennabiy> I am working on putting together a local manual for our labs on how to install and use LTSP, and thought I could update some of the documentation while I am working on that
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| 16:17 | <alkisg> bennabiy: https://help.ubuntu.com/community/WikiGuide
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| 16:17 | <bennabiy> If I need my fat client to not have certain services like waiting for cryptdisks etc, how would I go about doing that?
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| 16:18 | <alkisg> Are those in fstab, or somewhere else?
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| 16:19 | <bennabiy> probably
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| 16:19 | I use many encrypted drives, and some zfs stuff, so I have fstab / crypttab entries for those, and zfs loaded for it
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| 16:20 | <alkisg> If they are in crypttab, then you'd need to do for crypttab similar things that ltsp does for fstab
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| 16:20 | <bennabiy> and I want to be able to selectively keep those entries on the fat client, but remove the ones that only pertain to the server
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| 16:20 | <alkisg> E.g. CRYPTTAB_1=xxx
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| 16:20 | in lts.conf
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| 16:20 | <bennabiy> Re: wiki , I applied
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| 16:21 | So the CRYPTTAB_1 etc are entries I want to show up in fat client?
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| 16:21 | same with FSTAB?
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| 16:21 | <alkisg> Yes, but you would need to implement that
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| 16:21 | <bennabiy> But how do you deal with a setup where ltsp-update-image -c / generated the server ones to the client?
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| 16:21 | just exclude them?
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| 16:21 | <vagrantc> 17
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| 16:22 | <bennabiy> Hi vagrantc!
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| 16:22 | <alkisg> Same way as fstab, yes, it's excluded/emptied
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| 16:22 | * vagrantc waves | |
| 16:23 | <alkisg> Hi vagrantc
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| 16:23 | <bennabiy> Where is the code for the lts.conf variables?
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| 16:23 | <alkisg> Some of them are in /usr/share/ltsp/init-ltsp.d
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| 16:23 | Just grep for the variable you want, in the ltsp sources
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| 16:23 | <bennabiy> also, do all variables set in lts.conf pass to the client, whether LTSP knows what they are or not?
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| 16:23 | <alkisg> Yes
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| 16:24 | <bennabiy> say I set RANDOM_VAR=True... I could set that for something that needs to be in place in the client and it would make it?
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| 16:24 | <alkisg> Yes
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| 16:24 | <bennabiy> great
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| 16:25 | alkisg: so I need to write the CRYPTTAB support, like the fstab support?
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| 16:25 | <alkisg> Yes
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| 16:25 | <bennabiy> ok
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| 16:25 | <alkisg> (if it's similar, I haven't read about crypttab)
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| 16:25 | <bennabiy> similar
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| 16:25 | simple entries
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| 16:26 | devicename device keyfile options
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| 16:26 | whitespace seperated
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| 16:27 | also, I cannot ssh from my fat client
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| 16:27 | <alkisg> error message?
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| 16:27 | <bennabiy> https://pastebin.mozilla.org/8904172
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| 16:28 | <alkisg> You've set TEMP to an sshfs path?
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| 16:28 | <bennabiy> my ssh tmp
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| 16:28 | <alkisg> OK, reset it to defaults
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| 16:30 | <bennabiy> where is the best secure place to have ControlPath set to?
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| 16:30 | I liked it within the home directory
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| 16:31 | <alkisg> Dunno, ask the ssh people, I like the defaults unless I have a very specific reason to change them
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| 16:39 | <bennabiy> kk
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| 16:39 | well, it works when it is not in a sshfs path
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| 16:41 | <alkisg> Yes, sshfs doesn't support sockets, and I don't think it would make much sense since the process is local
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| 16:41 | <bennabiy> yes
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| 16:42 | what is the script to copy the img to the local memory and boot from it?
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| 16:43 | <alkisg> That's in the initramfs-tools debian subdir
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| 16:51 | <alkisg> bennabiy: did you receive those nexbox clients? are they decent, other than the gigabit port?
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| 17:05 | <bennabiy> I have not booted one yet
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| 17:05 | trying to get my fat client setup working right
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| 17:05 | I am using the zotac right now
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| 17:05 | I was going to test them tonight or tomorrow
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| 17:05 | They are tiny
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| 17:06 | if you took a pi and made it a square based on the length, you would have it
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| 17:07 | alkisg: do you have any documentation for the steps to make use of the 32G eMMC for caching the client image for the fat client?
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| 17:09 | <alkisg> bennabiy: no... basically it's dd if=/dev/nbd0 /dev/sda, and then root=/dev/sda in the cmdline
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| 17:09 | Or a partition instead of the full disk
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| 17:09 | sda1
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| 17:10 | <bennabiy> and you would do that on boot?
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| 17:11 | <alkisg> No, only when the image was updated
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| 17:11 | <bennabiy> so it would be a manual thing
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| 17:11 | <alkisg> It can be automatic, it's just a script
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| 17:11 | You can make programs that do anything
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| 17:11 | <bennabiy> how can you tell which nbd device is associated with which image?
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| 17:11 | <alkisg> You can check if a newer image exists, and do it in the background while the client actually works
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| 17:11 | nbd0 is always the root disk with the ltsp initscripts
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| 17:12 | <bennabiy> hrm... I need to go, but I want to wrap my brain around this and put it into practice.
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| 17:13 | <alkisg> E.g. by using root=LABEL=LTSP
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| 17:13 | <bennabiy> in what?
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| 17:13 | <alkisg> ...you can use /dev/sda1 while syncing /dev/sda2 in the background
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| 17:13 | in the cmdline
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| 17:13 | And then update the LABEL so that it boots from sda2 in the next boot
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| 17:13 | (client side, automatic)
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| 17:14 | <bennabiy> I am probably going to be asking more about this when I get done teaching... back in a few hours
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| 17:14 | <alkisg> bb
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| 17:38 | <FloydATC> Good evening! I have set up an LTSP server and used it successfully with a few HP thin clients and tested from both 32 and 64bit vmware VMs.
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| 17:39 | Recently, I tried using some old 64bit laptops but something strange happens
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| 17:39 | <FloydATC> I use "blackbox" window managed but instead of loading the correct menu and style, the laptops revert to the (empty) default menu
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| 17:41 | I know I must have goofed somewhere but I have no idea how or what would cause this bizarre situation
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| 17:42 | # uname -a Linux pixie 3.19.0-33-generic #38~14.04.1-Ubuntu SMP Fri Nov 6 18:17:28 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
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| 19:21 | <FloydATC> HAH! I figured it out! It was ofcourse the laptops having more RAM and thus booting the (broken) FAT image
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| 19:40 | <bennabiy> back
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| 20:58 | <bennabiy> booting the nexbox now...
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| 21:27 | <bennabiy> alkisg: first attempt to boot it brought me into win10, trying to change to UEFI network booting got me a black screen
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| 21:28 | alkisg: thoughts?
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| 21:30 | <alkisg> bennabiy: change it to csm, legacy network booting, not uefi
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| 21:30 | <bennabiy> how do I do that?
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| 21:30 | * bennabiy has not run windows in YEARS | |
| 21:31 | <alkisg> it's a bios setting
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| 21:31 | <bennabiy> win10 UEFI, no bios
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| 21:31 | <alkisg> Enter the firmware and disable uefi booting, enable legacy mode, and network boot
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| 21:31 | Yeah, an uefi setting
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| 21:31 | <bennabiy> how do I enter firmware?
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| 21:31 | <alkisg> F2, Del, things like that
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| 21:32 | I think you can also do that within windows, like "reboot to uefi setup"
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| 21:32 | <bennabiy> no option for that on this little thing
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| 21:32 | <alkisg> Google a bit
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| 22:05 | <bennabiy> well, the firmware has much to be desired
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| 22:06 | I cannot get it into legacy mode
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| 22:06 | I can tell it to UEFI boot network, but that is it
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| 22:06 | It supports android booting
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| 22:06 | can that be used?
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| 22:06 | alkisg: ^
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