IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 8 February 2023 (all times are UTC)
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| 09:52 | <err404[m]> hello, did you have somewhere a WORKING EXAMPLE documentation for a chrooted config? (https://github.com/ltsp/ltsp/wiki/chroots is not working in may case)
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| 09:52 | s/may/my/
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| 09:53 | <alkisg> err404: well, it's working for me, so you'd need to mention what's not working for you
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| 10:02 | <err404[m]> thanks,... (full message at <https://libera.ems.host/_matrix/media/v3/download/libera.chat/f2bb68185c4e3ecfd74b2219443c47cf6f54b009>)
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| 10:04 | so, the isssue is not really from the ltsp itself in my case (vmlinuz is missing),
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| 10:06 | <alkisg> err404: do you have any special reason not to use the proper directories?
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| 10:06 | The /srv/tftp directory is described in the filesystem hierarchy standard, and it's what ltsp uses
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| 10:06 | There's no tutorial for "non-standard directories" if you're looking for that
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| 10:06 | <err404[m]> I have also another issue, but seem working:
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| 10:06 | ```
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| 10:06 | ltsp initrd
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| 10:06 | Could not parse output of: ip -o route get 192.168.67.1
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| 10:06 | Generated ltsp.img:
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| 10:06 | -rw-r--r-- 1 root root 158208 Feb 8 10:46 /srv/tftp/ltsp/ltsp.img
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| 10:06 | ```
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| 10:06 | <alkisg> Yes that means that your routing is problematic, but it's not a fatal error
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| 10:09 | <err404[m]> I made a symlink from /srv to /data/srv
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| 10:09 | but I remmember that nfs doesnot support symlink or something like this,
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| 10:09 | at the beginning, I was affraid about space disk, but it seem unnecessary to move /srv to another partition
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| 10:09 | I will retry all the config with /srv on /, not on /data/srv
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| 10:09 | <alkisg> You can mount /data/srv as /srv directly if it helps
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| 10:10 | You can also bind-mount a directory if you prefer
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| 10:11 | <err404[m]> my /data is an encrypted lvm partition, but for the moment I will try to have a working config on /srv
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| 14:02 | wyre is now away: Auto away at Wed Feb 8 14:01:59 2023 UTC | |
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| 14:45 | <err404[m]> ok, it is working on my side now 😄
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| 14:45 | - kernel linux image was not installed on chroot, (probably because debootstrap assume is for chroot, so using the original kernel is ok?)
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| 14:45 | - after adding the kernel on the chrooted, (and executing `ltsp image ltspdeb` followed by `ltsp ipxe) ltsp was abble to load it.
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| 14:45 | - but the system was mounted readonly (it is normal, ok) so the ligthdm was not abble to start (same issue if your disk is full).
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| 14:45 | I edited the file /etc/exports.d/ltsp-nfs.exports to make the exported folder writable, and update nfs with `exportfs -ra`
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| 14:45 | I executed in root (in the ltsp client): `mount -n -o remount,rw /` to make the `/` writable
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| 14:45 | fews second later the graphical env was launched and I was abble to login
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| 14:46 | so, may be on ubuntu the kernel is installed with debootstrap?
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| 14:47 | I know that it is actualy not secure to have nfs export in rw mode
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| 14:49 | * ok, it is working on my side now 😄
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| 14:49 | - kernel linux image was not installed on chroot, (probably because debootstrap assume is for chroot, so using the original kernel is ok?)
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| 14:49 | - after adding the kernel on the chrooted, (and executing `ltsp image ltspdeb` followed by `ltsp ipxe`) ltsp was abble to load it.
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| 14:49 | - but the system was mounted readonly (it is normal, ok) so the ligthdm was not abble to start (same issue if your disk is full).
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| 14:49 | I edited the file /etc/exports.d/ltsp-nfs.exports to make the exported folder writable, and update nfs with `exportfs -ra`
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| 14:49 | I executed in root (in the ltsp client): `mount -n -o remount,rw /` to make the `/` writable
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| 14:49 | fews second later the graphical env was launched and I was abble to login
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| 14:49 | * ok, it is working on my side now 😄
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| 14:49 | - kernel linux image was not installed on chroot, (probably because debootstrap assume is for chroot, so using the original kernel is ok?)
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| 14:49 | - after adding the kernel on the chrooted, (and executing `ltsp image ltspdeb` followed by `ltsp ipxe`) ltsp was abble to load it.
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| 14:49 | - but the system was mounted readonly (it is normal, ok) so the ligthdm was not abble to start (same issue if your disk is full).
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| 14:49 | I edited the file `/etc/exports.d/ltsp-nfs.exports` to make the exported folder writable, and update nfs with `exportfs -ra`
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| 14:49 | I executed in root (in the ltsp client): `mount -n -o remount,rw /` to make the `/` writable
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| 14:49 | fews second later the graphical env was launched and I was abble to login
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| 14:51 | I read that sshfs can be used intead of nfs, but I dont know how to configure it on ltsp (I use ssh and sshfs is working on my side)
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| 14:57 | <err404[m]> `ltsp initrd `<-- was also used
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| 14:57 | <vsuojanen[m]> did you check in the chroot that you have the /boot in The root hierarchy? Did you install there on chroot at any point linux-generic initramfs-tools?
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| 14:59 | <err404[m]> may be, I am not sure, anyway I need to make another try, on a cleaner environement, because I tried many thinngs and it is remain confused to me for the moment
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| 15:01 | but the loading kernel, initrd and the environement through GBits ethernet is fast as expected (the ltsp server is on a disk drive, not a SSD, I not demand instant loading :p)
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| 15:02 | <vsuojanen[m]> before you do another try read again the top of the wiki page you linked.
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| 15:02 | > before you do another try read again the top of the wiki page you linked.... (full message at <https://libera.ems.host/_matrix/media/v3/download/libera.chat/1472804b8976d0c378908a2710f8eb23086db0a5>)
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| 15:02 | <err404[m]> and yes, my /boot was empty, so I installed kernel in the chroot
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| 15:03 | yes, I need to re-read again the docs
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| 15:04 | <vsuojanen[m]> sorry i meant reality the top to be precise. My wast was not related to that, sorry
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| 15:05 | cd /srv/ltsp
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| 15:05 | debootstrap focal focal
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| 15:05 | chroot focal
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| 15:05 | apt install --no-install-recommends linux-generic initramfs-tools
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| 15:05 | echo focal > /etc/hostname
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| 15:05 | passwd
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| 15:05 | exit
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| 15:07 | <err404[m]> debootstrap focal focal <-- is for ubuntu, but I use Debian, so I tried bullseye, and I remmember seen an error, but I let it continue
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| 15:08 | apt install --no-install-recommends linux-generic initramfs-tools <-- I dont know why the kernel was not installed at this step, next time I will be more attentive
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| 15:18 | <vsuojanen[m]> that /boot in root hierarchy is needed before you can configure the ipxe and tftp (and that's a separate task)
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| 15:37 | <err404[m]> about sshfs, I found an answer: https://github.com/ltsp/ltsp/discussions/789
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| 16:06 | <vsuojanen[m]> About the nfs vs. sshfs issue are you already netbooting the clients? yes i think the wiki instruction should link to ltps.org main Installation page
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| 17:11 | <alkisg> err404: the main things to consider are:
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| 17:11 | 1) Why are you using a chroot instead of chrootless or VM? The chroot method is the hardest one.
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| 17:11 | 2) Remember to run `ltsp image chroot-name`, before booting the client. This makes a squashfs file out of the image. Serving this over NFS works fine. While serving a chroot over NFS has issues with recent kernels (as it was reported, I haven't tested myself)
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| 18:07 | <err404[m]> > The chroot method is the hardest one.
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| 18:07 | this is not documented as hardest one 😛
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| 18:07 | I can try to build a VM and use it (with image linked to the vmdk as documented in ltsp)
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| 18:07 | * > The chroot method is the hardest one.
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| 18:07 | this is not documented as hardest one 😛
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| 18:07 | I can try to build a VM and use it (with image linked to the vmdk as documented in ltsp)
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| 18:09 | actualy, the diskless client is booting fine with a chrooted env for ltsp, but the / is readonly (as configured by ltsp nfs)
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| 18:09 | s///`/`/
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| 18:10 | running ltsp image chroot-name took long time to finish, but it will not really an issue
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| 18:11 | <alkisg> It's supposed to be read only, yeah
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| 18:11 | <err404[m]> I will try by VM
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| 18:37 | <vsuojanen[m]> I have seen that chroot wiki document purpose has been to be one advanced use case and not so much guiding about the ltsp server Installation.
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| 18:38 | <alkisg> https://ltsp.org/docs/installation/#maintaining-a-client-image ==> it is the easiest method ==> it's talking about chrootless there :D
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| 20:08 | <err404[m]> ah yes, it was not working in my case, but may be I had already fogoten some step 😛
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| 20:09 | s/fogoten/forgoten/
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