IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 14 November 2022 (all times are UTC)
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| 10:53 | <koocotte> Hello everybody
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| 10:58 | <alkisg> Hello koocotte
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| 10:58 | <koocotte> I'm installing the new version of LTSP for the first time (I use LTSP5 and olders for years). I updated my running dnsmasq.conf to boot one PC on the new system. It boot the kernel and start LTSP scripts, but fail on NFS mount. It try to mount from the DHCP server, and not the LTSP server.
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| 10:59 | I set SERVER="new_ltsp_server" in ltsp.conf, rebuild the initrd;, without success
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| 10:59 | <alkisg> It's usually safer and easier to NOT configure your DHCP server for netbooting, to avoid such configuration problems
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| 10:59 | <koocotte> SERVER="new_ltsp_server_IP"
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| 10:59 | <alkisg> Then `ltsp dnsmasq` will configure your ltsp server in proxydhcp mode
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| 10:59 | And that will give the correct configuration to the clients, the proxydhcp server, not the real server
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| 11:00 | <koocotte> in proxydhcp mode, how is answering requests? The new server?
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| 11:00 | <alkisg> That also helps in load balancing; you can have as many ltsp servers as you like and they'll fallback automatically (the first one to answer gets the client)
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| 11:00 | The main DHCP server gives the IPs, but not the "boot filename" and "rootpath"
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| 11:01 | The proxy DHCP server (=the LTSP server) only gives the boot filename and rootpath. It doesn't give IPs or other information
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| 11:01 | What's your main DHCP server, which software is it running?
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| 11:01 | <koocotte> dnsmasq
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| 11:01 | <alkisg> Do you have other netbooted clients on the network, apart from ltsp clients?
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| 11:01 | <koocotte> The client has two responses ? One for IP and the other for boot and root ?
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| 11:02 | <alkisg> Yes
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| 11:02 | It's part of the official dhcp/pxe protocols
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| 11:02 | <koocotte> Yes, I have a complex dnsmasq configuration. That's why I do not what to start a second one that can mess the network
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| 11:03 | <alkisg> If you don't have other netbooted clients, then the proxydhcp server is the best option
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| 11:03 | You just need to remove the boot filename and root path from your main dhcp server, that's all
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| 11:03 | Otherwise you just need to configure it properly, to point to the ltsp server for tftp
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| 11:04 | <koocotte> The old LTSP must work until the new one is ready
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| 11:04 | <alkisg> You can configure the main dhcp server to not send the boot filename and root path for a few test clients only
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| 11:04 | Then these few (or single) test clients will work with the new method, while the old method will still work for the old ltsp server and clients
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| 11:05 | <koocotte> I don't understand why the SERVER parameter does not apply. I read the scripts, and check in the debug shell that $SERVER is ok
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| 11:05 | <alkisg> SERVER works after nfs is mounted
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| 11:05 | The nfs mount is done by initramfs-tools
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| 11:05 | It's not done by ltsp code
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| 11:05 | <koocotte> ok, thanks
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| 11:05 | <alkisg> So if you run `cat /proc/cmdline`, you'll see nfsroot=ip-of-main-dhcp/path there
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| 11:05 | So that part is what you have misconfigured
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| 11:06 | <koocotte> Ok, thanks a lot
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| 11:15 | <koocotte> I (temporary) overwrite the srv variable in ltsp.ipxe and it solve my problem.
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| 11:20 | <alkisg> 👍
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