IRC chat logs for #ltsp on irc.freenode.net (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;
00:03
mount: mounting /dev/loop0 on /run/initramfs/ltsp/0/looproot failed: no such device
00:04
on my clients
00:04
I've started my client in debug mode
00:04
I can see those directories exist
00:04
If I do a 'df' command I can see tmpfs is mounted /run/initramfs/ltsp
00:07
I'm using a chrootless ltsp image
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?
03:26
<map7_>
Hi alkisg, yes I can do a screenshot
03:27
https://pasteboard.co/Jd8QirB.png
03:27
I've replicated the problem in VirtualBox
03:27
I'm using the ipxe.iso to boot
03:27
I've also tested with real hardware, exact same problem
03:35
<alkisg>
map7_, do you have vnc so that I can take a quick look inside your vbox?
03:35
!vnc-dide
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.
03:36
<alkisg>
(not much time for irc today, will need to leave soon...)
03:38
map7_, no squashfs module, open a terminal at the host for me please
03:40
Didn't you say chrootless setup?
03:40
<map7_>
yes it should be
03:40
<alkisg>
They have different kernels, 4.19=debian vs 4.15=ubuntu
03:40
<map7_>
might of updated the server and not done a new image
03:40
<alkisg>
you updated from ubuntu to debian?
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
03:44
isee
03:44
i see
03:44
<alkisg>
Strange though
03:44
<map7_>
i might have to redo the image and make sure it's the same kernel
03:44
<alkisg>
LTSP runs update-initramfs, which should have given you msquashfs inside the 4.15 initrd
03:45
Anyway yeah, an `ltsp image /` should solve the issue
03:45
<map7_>
cheers mate
03:45
I'll do that, thanks
03:45
I think I was almost there
03:45
<alkisg>
Cheers :)
04:15
<map7_>
alkisg after ltsp image / it's still on the old kernel
04:15
I've done a 'ltsp kernel' & 'ltsp ipxe' & 'ltsp initrd'
04:16
<alkisg>
map7_, I need to leave now, I'll be back in 3 hours or so
04:16
<map7_>
ok no probs
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
07:03
map7_, nice
07:04
<map7_>
yeah but it didn't boot to the login screen completely
07:04
then I thought I would try the VMDK instead
07:04
and got up to an error on the build of a VMDK iamge
07:04
image
07:04
LTSP command failed: blkid -po export /srv/ltsp/debian.img
07:05
My debian is symlinked to my Virtualbox image
07:05
and I can boot my virtualbox image no problem with debian 10
07:06
<alkisg>
map7_, it's probably not in raw format
07:06
LTSP can only handle raw format images, not compressed, as the code need to be able to run under the initramfs too
07:07
sudo fdisk -l /path/to/vmdk should tell you, or sudo file /path/to/vmdk
07:08
<map7_>
sudo fdisk -l VirtualBox\ VMs/debian_10/debian_10.vmdk
07:08
Disk VirtualBox VMs/debian_10/debian_10.vmdk: 512 B, 512 bytes, 1 sectors
07:08
Units: sectors of 1 * 512 = 512 bytes
07:08
Sector size (logical/physical): 512 bytes / 512 bytes
07:08
I/O size (minimum/optimal): 512 bytes / 512 bytes
07:09
<alkisg>
Use pastebin
07:09
Or do a quick vnc:
07:09
!vnc-dide
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.
07:11
<map7_>
hold on
07:13
<alkisg>
map7_, the symlink was wrong, you were supposed to use the -flat.vmdk, which is the disk
07:13
<map7_>
yep got it now
07:13
<alkisg>
But, your chrootless image is too big, checking why...
07:14
I guess you'd want to omit /var/www from the clients, use ADD_IMAGE_EXCLUDES in ltsp.conf
07:16
Oh well I guess you have a lot of programs
07:16
1 GB fonts, meh :D
07:16
<map7_>
yeah
07:16
<alkisg>
Switch to the other tab
07:16
Did ltsp image finish?
07:16
OK, boot a client
07:18
<map7_>
still booting from the old chrootless image instead of the virtual machine image
07:18
<alkisg>
It has a menu, use it
07:18
<map7_>
I think I have to ltsp initrd now?
07:18
<alkisg>
Start the VM
07:18
I'll show you
07:19
<map7_>
cool
07:19
it's been a long day
07:19
<alkisg>
Did you install ltsp in the vm?
07:19
Without the server parts, just ltsp, no dnsmasq
07:19
<map7_>
no I'll do that now,
07:19
ugh
07:19
<alkisg>
OK, and run ltsp initrd then, no need for ltsp image
07:19
Ah, although... no it might need ltsp image
07:19
<map7_>
sorry mate
07:20
<alkisg>
As it's a symlink
07:20
<map7_>
cheers, thanks again
07:20
<alkisg>
np
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