IRC chat logs for #ltsp on irc.freenode.net (webchat)


Channel log from 22 May 2017   (all times are UTC)

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01:07
<map7`>
exit
01:07
exit
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01:08
<map7`>
I'm trying to upgrade the kernel in my thin client image but when I boot the new kernel I'm getting the following errors
01:08
modprobe: module overlayfs not found in modules.dep
01:08
modprobe: module aufs not found in modules.dep
01:09
I'm installing kernel 4.9 from debian jessie's backports
01:13
How do I install the overlayfs for the kernel?
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04:50
<alkisg>
map7`: it sounds like you didn't run ltsp-update-kernels. What's the output of `uname -r` in busybox, is it 4.9?
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06:08
<map7`>
alkisg: I did run ltsp-update-kernels. I just spoke to Vagrant on the mailing list
06:09
I agree with him that I would be better off jumping to Debian Stretch
06:09
<alkisg>
Yeah saw the mail, I didn't realize you had a very old ltsp that couldn't cope with overlay fs
06:09
We fixed that years ago :)
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06:10
<map7`>
yep this is a production box with four companies using thin clients off it so we don't get a chance to do big upgrades that often.
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06:18
<alkisg>
I think the fix is there in jessie-backports
06:18
So you just need to add backports to your chroot
06:18
But if you're just rolling out the update, then sure, go for stretch
06:19
<map7`>
alkisg: I did try the kernel & ltsp-client from backports and it still had the problem
06:19
and ltsp-client-core
06:19
did a rebuild ltsp-update-kernels and ltsp-update-image
06:19
and it still had exactly the same problem
06:19
<alkisg>
Did you run update-kernels and update-initramfs inside the chroot?
06:21
Put this file to pastebin: /opt/ltsp/i386/usr/share/initramfs-tools/scripts/init-bottom/ltsp
06:21
...so that I see if it supports overlay fs or not
06:22
Hers is mine, see that I have code there that checks for both UNION_TYPE=overlay and for UNION_TYPE=overlayfs
06:22
*here: http://termbin.com/mc1r
06:23
<map7`>
alkisg: I did the update-kernels but not the update-initramfs
06:24
<alkisg>
(09:21:03 πμ) alkisg: Put this file to pastebin: /opt/ltsp/i386/usr/share/initramfs-tools/scripts/init-bottom/ltsp
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06:25
<map7`>
https://pastebin.com/ubcc19ZV
06:28
<alkisg>
map7`: that's the same as mine, which is the latest upstream one
06:28
It should support overlay fs fine
06:28
So, back to my initial question, what's the output of `uname -r` in the client busybox
06:29
Maybe you just haven't properly updated tftp...
06:30
<map7`>
4.9.0-0.bpo.2-686
06:30
which is the kernel I'm trying to load on the client
06:30
<alkisg>
And what happens if you manually try this: modprobe overlay
06:31
<map7`>
overlay not found in modules.dep
06:31
maybe the backports kernel doesn't have overlay compiled in?
06:32
<alkisg>
find /opt/ltsp/i386/lib/modules/ -name '*overlay*'
06:32
What's the output of that?
06:33
<map7`>
https://pastebin.com/20XS8vfP
06:33
<alkisg>
So sure it's there
06:33
Did you omit it from the initramfs modules?
06:33
Try the same command in busybox, find /lib -name...
06:33
(not in the chroot of course, in /lib)
06:35
<map7`>
Nothing comes up
06:35
(I had to do a find /lib | grep overlay)
06:36
because of busybox find doesn't support -name I think
06:36
<alkisg>
grep MODULES /etc/initramfs-tools/initramfs.conf
06:36
On the server
06:36
Output?
06:36
<map7`>
MODULES=most
06:36
<alkisg>
Ah sorry on the chroot
06:37
grep MODULES /opt/ltsp/i386/etc/initramfs-tools/initramfs.conf
06:37
<map7`>
same result
06:38
I did type 'update-initramfs -k all -u' before
06:38
in chroot
06:38
is this incorrect?
06:39
<alkisg>
update-initramfs -u is enough
06:39
<map7`>
ok
06:40
<alkisg>
Put this to pastebin: /opt/ltsp/i386/usr/share/initramfs-tools/hooks/ltsp
06:41
!termbin
06:41
<ltsp>
termbin: To share the output of some command, run: command | nc termbin.com 9999 . This executes command , sends its output to termbin.com, and returns a URL. Paste this URL here to share the command output with us.
06:41
<alkisg>
(that's a quicker way to use pastebin..)
06:44
<map7`>
http://termbin.com/fmky
06:44
<alkisg>
manual_add_modules overlay
06:45
So it's supposed to properly add the module
06:46
<map7`>
hmmmm
06:47
I'm going to have to go now, but I'll have this test rig here to test anything on.
06:47
<alkisg>
Well, next I would try `update-initramfs -u` in the chroot and `cpio -i /boot/initrd.img` etc, and maybe put some debugging printfs in the hooks to see why it doesn't work
06:47
<map7`>
I think I'll upgrade to Stretch and that should fix things
06:47
<alkisg>
It's supposed to work
06:47
Yeah, go for that
06:48
<map7`>
alkisg: bye, and thanks for the debugging
06:48
<alkisg>
Bye
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14:31
<FojiKing>
thanks
14:32
guys i need a little help
14:33
can anyone help me???
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14:55
<||cw>
no help for the impatient!
15:04
<quinox>
:)
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16:49
<megaVlad>
hellow
16:50
<tremolo>
howdy
16:54
<megaVlad>
I from Russia and i write Graduation work about integration ltsp in bank. So, I'm sorry for my English. I want use NBD and FUSE as file system
16:56
It's a good idea? Or There are more successful solutions
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21:51
<drymis>
megaVlad: Yes, LTSP could work and can be very secure if configured to be so.
21:55
megaVlad: Problems would include trying to run proprietary software ment for Windows. If the banking software can run on Linux or a web browser, then there would be no problem.
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