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

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Channel log from 17 December 2021 (all times are UTC)

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14:51	<danboid> alkisg, We're getting closer to having LTSP boot via grub4dos but not worked how to get that to load the ipxe file, kernek etc from a remote tftp server yet, if it can. Might need to set up a webserver on the LTSP server to provide those files
14:51	alkisg, Why does LTSP seem to use 2 initrd files?
15:24	<alkisg> danboid: the easiest way is to NOT use a menu.ipxe file like you do, but to load only ipxe.lkrn, and let the proxydhcp do the rest
15:25	Then the kernel, initrd and ltsp.img will get downloaded over tftp from your selected boot server. And you'll be able to change the boot server without updating the clients.
15:25	ltsp.img contains the ltsp code, settings and even users (passwd, not shadow) that is injected into the initramfs
15:26	Read https://ltsp.org/man/ltsp-initrd/ for the details
15:28	<danboid> alkisg, So I should load ipxe.lkrn in place of the kernel?
15:28	<alkisg> danboid: in grub4dos, you have: kernel ipxe.lkrn; initrd ipxe.pxe
15:29	As I've been saying a few days ago, you should remove the initrd line from there...
15:29	It just breaks the normal ltsp boot process
15:29	So, you will completely throw away the ipxe.pxe file that has OTHER kernel/initrd lines inside it. You won't need it at all.
15:34	<danboid> Let me get this straight then
15:35	Our G4D menu.lst has this line
15:35	kernel /LTSP/ipxe.lkrn
15:35	<alkisg> https://github.com/ltsp/ltsp/discussions/629
15:35	Remove this line: initrd /LTSP/boot.ipxe
15:36	<danboid> That loads ipxe.lkrnl from where? The g4d boot partition right, under the LTSP dir?
15:36	<alkisg> Just re-read my answer from directly below
15:36	Yes
15:43	<danboid> My collegue says we can't use proxydhcp as our DHCP scope pushes the PCs to our main PXE environment
15:45	So I have to use an ipxe script right?
15:47	<alkisg> It's possible to use an ipxe script, yes, if it's easier for you to manage things client-side instead of server-side
15:47	I'd just configure my "dhcp scope" to send each client to windows or linux by mac address or however else I'd want to separate the clients
15:48	In that case (when you want to main things client-side), then yes, what you did in https://github.com/ltsp/ltsp/discussions/629 was the correct way to go
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15:51	<alkisg> s/main/manage/
15:51	<danboid> Will I need to load both initrd files? ltsp.img and the proper initrd.img? It loks like it but I can't get run-init to find the initrd
15:51	Here's the current boot file I'm using
15:52	<alkisg> No, you can chain to the ltsp server's ltsp.ipxe menu instead
15:52	<danboid> alkisg, https://paste.ubuntu.com/p/KDrmgpkzb4/
15:53	<alkisg> init=http://leto.cs.salford.ac.uk/ltsp.img ?
15:53	init is what to run on boot, you can't run an image, it needs to be an executable
15:53	<danboid> alkisg, That doesnn't work. It looks like ltsp.ipxe has vars in it that expect ipxe to be running on the same machine as ltsp
15:54	<alkisg> kernel http://leto.cs.salford.ac.uk/vmlinuz
15:54	initrd http://leto.cs.salford.ac.uk/initrd.img
15:54	initrd http://leto.cs.salford.ac.uk/ltsp.img
15:54	imgargs vmlinuz append initrd=initrd.img initrd=ltsp.img root=/dev/nfs nfsroot=146.87.15.203:/srv/ltsp ltsp.image=images/Ubuntu-20.04.raw.img loop.max_part=9
15:54	Try something like that
15:55	You can set dhcp-server to the target server and chain there
15:55	Anyway, that about fills my quota for the day! Cheers! :)
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16:04	<danboid> alkisg, OK thanks, we'll try that. I'm waiting on my colleague but he might be done for the day now too
16:05	alkisg, I'll be updating the ltsp image man page soon, next week most likely now
16:05	<alkisg> danboid: no worries, I don't think anyone else complained ;)
16:08	<danboid> alkisg, I will also try to document booting in a situation like ours, once its up and runnng properly if it might be useful but really that should wait until we're using win32-loader instead
16:08	No-one would use grub4dos if starting from scratch
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