IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 14 March 2021 (all times are UTC)
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| 17:07 | <peanutbutterandc> Hello there
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| 17:07 | I'm trying to set up ltsp. But my image is in qcow2 format
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| 17:08 | how do I convert it to a static vmdk?
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| 17:08 | `qemu-img convert` has been converting the image to a dynamic vmdk
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| 17:09 | perhaps there's some options i'm missing?
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| 17:18 | <alkisg> peanutbutterandc: no idea about qcow, I'm only using vmdk via virtualbox
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| 17:19 | peanutbutterandc: try "convert to raw" or something like that
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| 17:19 | vmdk-flat is raw
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| 17:21 | <peanutbutterandc> alkisg, I get this error: http://termbin.com/9qi7 with the raw image. Any ideas/pointers please?
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| 17:36 | I have no idea why that error is manifesting itself....
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| 17:36 | I'd really appreciate any pointers/ideas to help debug it. http://termbin.com/9qi7
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| 17:37 | <alkisg> peanutbutterandc: what's the output of this? fdisk -l /path/to/flat.vmdk
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| 17:38 | <peanutbutterandc> alkisg, http://termbin.com/u4h7
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| 17:39 | <alkisg> peanutbutterandc: what's that first partition, a boot partition?
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| 17:39 | <peanutbutterandc> Yes, sir
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| 17:39 | <alkisg> It's a lot easier if you have an MBR image with everything in a single partition, and an optional swap afterwards
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| 17:40 | Otherwise you need to specify options for ltsp image to understand where to find the rootfs, where to merge the boot partition etc
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| 17:40 | <peanutbutterandc> hmmm.... it's a bootable vm. installed to disk (automatically, without any manual configurations)
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| 17:40 | alkisg, how do I do the latter?
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| 17:41 | <alkisg> This one specifies the boot partition, but it's not enough, ltsp image /,,/boot,subdir=boot
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| 17:41 | wait,
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| 17:43 | peanutbutterandc: try this one: ltsp image /path/to/vmdk,partition=3
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| 17:44 | <peanutbutterandc> with partition=3 it said "I don't know how to mount /path/to/image"
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| 17:44 | with 2, it failed too... another error
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| 17:44 | with 1, it gave the same error as before
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| 17:44 | <alkisg> peanutbutterandc: partition=5, sorry
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| 17:44 | Where your linux is
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| 17:45 | But you'll also need the boot partition as well, this will be harder, to combine both parts
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| 17:45 | It will be a lot easier to create a normal vmdk
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| 17:45 | > it's a bootable vm => sure, but LTSP doesn't have all the bios and grub and initrd boot logic in it
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| 17:45 | It can only autodetect so much
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| 17:45 | <peanutbutterandc> I only have virtual machine manager (libvirt/kvm/qemu)
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| 17:46 | all right then, I shall try to create another one then
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| 17:46 | <alkisg> I mean, when you install e.g. trisquel, it'll ask you which partitions to make
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| 17:46 | <peanutbutterandc> with only a single partition
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| 17:46 | <alkisg> Tell it to make just one
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| 17:46 | You can also just move files around
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| 17:46 | You don't need to remake it
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| 17:46 | <peanutbutterandc> okay. I will do just that then
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| 17:46 | <alkisg> Whatever's easiest for you
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| 17:47 | <peanutbutterandc> I'll have to go with reinstalling for now, I'm afraid. I don't have the knowledge to move files around in a raw image file, yet
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| 17:47 | <alkisg> If you don't mind sharing your screen, I can help
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| 17:48 | As long as you make another disk (e.g. flat 10 GB), I can then do the copy for you
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| 17:48 | <peanutbutterandc> I have never used a VNC thingy either.
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| 17:48 | <alkisg> !vnc-dide
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| 17:48 | <ltspbot> vnc-dide: To share your screen with me, run this: sudo apt-get --yes install x11vnc; x11vnc -connect srv1-dide.ioa.sch.gr - this is a reverse connection, it doesn't need port forwarding etc.
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| 17:48 | <alkisg> It's just one command, not a daemon
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| 17:48 | <peanutbutterandc> hmmmm....
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| 17:49 | and how does this work? you get access to what I'm currently seeing on my screen?
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| 17:49 | sorry, I'm just curious
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| 17:49 | <alkisg> Yeah, like anydesk
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| 17:49 | And with ctrl+c you stop it
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| 17:49 | <peanutbutterandc> never used that either... but oh well, I'll try it then
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| 17:49 | just a few moments please
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| 17:49 | <alkisg> What's your host? E.g. debian?
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| 17:49 | Do you have graphics, gparted etc?
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| 17:50 | Or e.g. are you on a headless server?
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| 17:50 | <peanutbutterandc> I'm on my laptop. But I'm working w/ VMs. I have the .img file... oh wait.... I'll just share the screen of my VM!
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| 17:50 | where the .img file is!
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| 17:51 | <peanutbutterandc> Please give me a few minutes
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| 17:51 | <alkisg> I just need access to old + new disk, and gparted
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| 17:51 | <peanutbutterandc> I'll install gparted too, then
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| 17:51 | <alkisg> OK
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| 17:51 | <peanutbutterandc> thank you for helping me out. Just a few minutes please
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| 17:57 | <peanutbutterandc> alkisg, done!
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| 17:58 | <alkisg> peanutbutterandc: that's your host or your ltsp server or your guest?
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| 17:58 | *image?
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| 17:59 | <peanutbutterandc> alkisg, my ltsp server. The guest image resides in /images
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| 18:02 | <alkisg> peanutbutterandc: 500 MB is too little RAM for such actions.. + gui...
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| 18:02 | peanutbutterandc: vnc was terminated
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| 18:03 | Rerun it?
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| 18:03 | <peanutbutterandc> alkisg, I only have 4 GB on my host. I'll increase the RAM and reboot, if that's okay with you?
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| 18:03 | <alkisg> peanutbutterandc: try to rerun vnc first
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| 18:03 | Maybe it'll manage to do it, let's see...
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| 18:04 | <peanutbutterandc> okay!
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| 18:05 | <alkisg> peanutbutterandc: aaah you have the buggy vnc version
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| 18:05 | peanutbutterandc: run it once more, and i'll put it in a loop then
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| 18:05 | <peanutbutterandc> alkisg, aaah....
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| 18:05 | okay
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| 18:05 | <alkisg> There's a certain vnc version that hangs frequently, we have an updated one in the greek schools ppa, but you don't have it in your sources
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| 18:06 | <peanutbutterandc> I added the ltsp ppa though
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| 18:06 | <alkisg> That's different to the greek schools ppa
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| 18:09 | peanutbutterandc: ouch, you have an encrypted disk
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| 18:09 | We can't even mount this manually; ltsp would never be able to read that :D
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| 18:09 | <peanutbutterandc> alkisg, yikes
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| 18:09 | <alkisg> Re-do the installation, and use a simple ext4 partition as the target...
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| 18:09 | Close vnc with ctrl+c in the other tab
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| 18:10 | <peanutbutterandc> okay...
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| 18:10 | so no encryption for the server then
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| 18:10 | <alkisg> The image
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| 18:10 | The server may have encryption
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| 18:10 | The image can't
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| 18:10 | <peanutbutterandc> Oh okay. That makes sense
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| 18:10 | I actually cloned the image from another template
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| 18:10 | <alkisg> It's going to be published on lan anyway
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| 18:10 | <peanutbutterandc> which had encryption
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| 18:10 | true
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| 18:11 | All right then, I shall do just that then and try again and let you know how that goes
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| 18:11 | <alkisg> np
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| 18:11 | <peanutbutterandc> (since my system has limited resources it takes quite a lot of time)
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| 18:11 | <alkisg> peanutbutterandc: isn't your ltsp server a VM itself?
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| 18:11 | <peanutbutterandc> thank you very much for being such a sport about helping me. I really appreciate it
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| 18:11 | alkisg, yes, sir. at the moment it is
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| 18:11 | because this is just an experiment
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| 18:12 | <alkisg> Put the image in another VM, not inside the VM
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| 18:12 | Then you can attach the disk when you're done
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| 18:12 | <peanutbutterandc> hmmm....?
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| 18:12 | <alkisg> What's your host OS?
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| 18:12 | <peanutbutterandc> sorry i don't quite understand
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| 18:12 | Linux Mint -> Host
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| 18:12 | <alkisg> OK so now you have: mint > ltsp server > image
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| 18:12 | <peanutbutterandc> yes
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| 18:12 | <alkisg> I propose this: 1) mint > ltsp server, and 2) mint> ltsp image
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| 18:13 | So that you have 2 VMs in mint; not nested VMs
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| 18:13 | <peanutbutterandc> Hmmm.... that does make sense.
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| 18:13 | However, since I'm following this: https://ltsp.org/docs/installation/
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| 18:13 | and am stuck here at the moment: https://ltsp.org/docs/installation/#maintaining-a-client-image
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| 18:13 | <alkisg> Btw, wait a minute
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| 18:14 | Why do you want a different server image than a client image?
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| 18:14 | Aren't both trisq...what's the name?
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| 18:14 | <peanutbutterandc> the instructions seem to say that the image needs to be inside the server...
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| 18:14 | trisquel
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| 18:14 | yes
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| 18:14 | <alkisg> Then why aren't you just using chrootless?
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| 18:14 | <peanutbutterandc> they're the same for now
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| 18:15 | <alkisg> Then you'd do `ltsp image /`, and you'd only need one VM
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| 18:15 | <peanutbutterandc> hmmm....... so that gives me trisquel for the server and client?
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| 18:15 | <alkisg> Yes
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| 18:15 | <peanutbutterandc> that's interesting
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| 18:15 | all right then, I shall try that right away then
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| 18:16 | <alkisg> OK. This might give you problems if you have an encrypted / on the server; again, it's easier to have the rootfs in the first ext4 unencrypted partition
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| 18:16 | Then you may have /home encrypted in another partition, if you want to
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| 18:16 | It might work though; try it
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| 18:17 | See what `ltsp image /` has to say
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| 18:17 | <peanutbutterandc> these are my first steps into these territories so I don't even have any idea what to expect. lol
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| 18:17 | chrootless seems to be working though! Thanks!
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