IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 15 June 2020 (all times are UTC)
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| 00:03 | <map7_> Hi I'm using ltsp 20.04-1 under debian testing (bullseye) and I'm getting the following error;
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| 00:03 | mount: mounting /dev/loop0 on /run/initramfs/ltsp/0/looproot failed: no such device
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| 00:04 | on my clients
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| 00:04 | I've started my client in debug mode
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| 00:04 | I can see those directories exist
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| 00:04 | If I do a 'df' command I can see tmpfs is mounted /run/initramfs/ltsp
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| 00:07 | I'm using a chrootless ltsp image
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| 00:09 | If I do a 'grep squashfs /proc/filesystems' nothing appears on the client
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| 03:16 | <alkisg> Hi map7_, can you take a screenshot? Or at least type the previous messages than the line you're mentioning?
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| 03:26 | <map7_> Hi alkisg, yes I can do a screenshot
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| 03:27 | https://pasteboard.co/Jd8QirB.png
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| 03:27 | I've replicated the problem in VirtualBox
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| 03:27 | I'm using the ipxe.iso to boot
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| 03:27 | I've also tested with real hardware, exact same problem
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| 03:35 | <alkisg> map7_, do you have vnc so that I can take a quick look inside your vbox?
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| 03:35 | !vnc-dide
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| 03:35 | <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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| 03:36 | <alkisg> (not much time for irc today, will need to leave soon...)
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| 03:38 | map7_, no squashfs module, open a terminal at the host for me please
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| 03:40 | Didn't you say chrootless setup?
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| 03:40 | <map7_> yes it should be
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| 03:40 | <alkisg> They have different kernels, 4.19=debian vs 4.15=ubuntu
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| 03:40 | <map7_> might of updated the server and not done a new image
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| 03:40 | <alkisg> you updated from ubuntu to debian?
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| 03:41 | <map7_> no I'm on debian, I might of installed a new kernel on the server and haven't done a new image yet
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| 03:44 | isee
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| 03:44 | i see
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| 03:44 | <alkisg> Strange though
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| 03:44 | <map7_> i might have to redo the image and make sure it's the same kernel
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| 03:44 | <alkisg> LTSP runs update-initramfs, which should have given you msquashfs inside the 4.15 initrd
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| 03:45 | Anyway yeah, an `ltsp image /` should solve the issue
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| 03:45 | <map7_> cheers mate
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| 03:45 | I'll do that, thanks
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| 03:45 | I think I was almost there
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| 03:45 | <alkisg> Cheers :)
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| 04:15 | <map7_> alkisg after ltsp image / it's still on the old kernel
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| 04:15 | I've done a 'ltsp kernel' & 'ltsp ipxe' & 'ltsp initrd'
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| 04:16 | <alkisg> map7_, I need to leave now, I'll be back in 3 hours or so
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| 04:16 | <map7_> ok no probs
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| 05:04 | alkisg: Got past that problem, I found that I didn't have 4.15.0-5 installed, but somehow it was running on the server. I've now installed kernel 5.6, rebuilt the image and it worked
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| 07:03 | <alkisg> Back
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| 07:03 | map7_, nice
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| 07:04 | <map7_> yeah but it didn't boot to the login screen completely
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| 07:04 | then I thought I would try the VMDK instead
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| 07:04 | and got up to an error on the build of a VMDK iamge
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| 07:04 | image
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| 07:04 | LTSP command failed: blkid -po export /srv/ltsp/debian.img
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| 07:05 | My debian is symlinked to my Virtualbox image
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| 07:05 | and I can boot my virtualbox image no problem with debian 10
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| 07:06 | <alkisg> map7_, it's probably not in raw format
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| 07:06 | LTSP can only handle raw format images, not compressed, as the code need to be able to run under the initramfs too
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| 07:07 | sudo fdisk -l /path/to/vmdk should tell you, or sudo file /path/to/vmdk
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| 07:08 | <map7_> sudo fdisk -l VirtualBox\ VMs/debian_10/debian_10.vmdk
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| 07:08 | Disk VirtualBox VMs/debian_10/debian_10.vmdk: 512 B, 512 bytes, 1 sectors
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| 07:08 | Units: sectors of 1 * 512 = 512 bytes
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| 07:08 | Sector size (logical/physical): 512 bytes / 512 bytes
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| 07:08 | I/O size (minimum/optimal): 512 bytes / 512 bytes
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| 07:09 | <alkisg> Use pastebin
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| 07:09 | Or do a quick vnc:
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| 07:09 | !vnc-dide
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| 07:09 | <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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| 07:11 | <map7_> hold on
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| 07:13 | <alkisg> map7_, the symlink was wrong, you were supposed to use the -flat.vmdk, which is the disk
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| 07:13 | <map7_> yep got it now
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| 07:13 | <alkisg> But, your chrootless image is too big, checking why...
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| 07:14 | I guess you'd want to omit /var/www from the clients, use ADD_IMAGE_EXCLUDES in ltsp.conf
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| 07:16 | Oh well I guess you have a lot of programs
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| 07:16 | 1 GB fonts, meh :D
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| 07:16 | <map7_> yeah
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| 07:16 | <alkisg> Switch to the other tab
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| 07:16 | Did ltsp image finish?
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| 07:16 | OK, boot a client
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| 07:18 | <map7_> still booting from the old chrootless image instead of the virtual machine image
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| 07:18 | <alkisg> It has a menu, use it
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| 07:18 | <map7_> I think I have to ltsp initrd now?
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| 07:18 | <alkisg> Start the VM
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| 07:18 | I'll show you
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| 07:19 | <map7_> cool
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| 07:19 | it's been a long day
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| 07:19 | <alkisg> Did you install ltsp in the vm?
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| 07:19 | Without the server parts, just ltsp, no dnsmasq
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| 07:19 | <map7_> no I'll do that now,
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| 07:19 | ugh
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| 07:19 | <alkisg> OK, and run ltsp initrd then, no need for ltsp image
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| 07:19 | Ah, although... no it might need ltsp image
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| 07:19 | <map7_> sorry mate
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| 07:20 | <alkisg> As it's a symlink
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| 07:20 | <map7_> cheers, thanks again
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| 07:20 | <alkisg> np
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