[Ltsp-discuss] LTSP boot /dev/nbd0 does not exist

Discussion:

Michael Pope

2017-03-29 05:41:47 UTC

I'm running debian testing on my LTSP server and have just applied the
upgrades. It was working before the upgrades.

I upgraded the server with

sudo apt update

sudo apt upgrade

Then I upgraded the fat client

sudo ltsp-chroot -m
sudo apt update
sudo apt upgrade
exit
sudo ltsp-update-image
sudo ltsp-update-kernels

Now when I try to start a fat client I get the following error

Negoatiation: ..Error: Read failed: End of file

Exiting.

Gave up waiting for root device. Common problems:

- Boot args (cat /proc/cmdline)

Check rootdelay=

Check root

- Missing modules

ALERT! /dev/nbd0 does not exist . Dropping to shell!

Then I'm just stuck at busybox.

Tried the following two commands, but that didn't help
sudo ltsp-config nbd-server
sudo service nbd-server restart

Tried adding nbd to the server
sudo modprobe nbd

Now I can list /dev/nbd0 on the server, but still not boot the client.

--
from
Michael

Peter Tuharsky

2017-03-29 06:38:59 UTC

Permalink

I got into the same problem after installation of Debian Stretch, that
is currently in RC stage.

I applied settings from well-running Debian Jessie system. Everything
works, except NBD. I got the same symptoms, and in /var/log/syslog I read:

Negotiation failed/8a: Requested export not found, or is TLS-only and
client did not negotiate TLS

Does somebody have an idea, what's going on?

Am I doing something wrong? Or is it some grave bug in Stretch that
should be reported?

Post by Michael Pope
I'm running debian testing on my LTSP server and have just applied the
upgrades. It was working before the upgrades.
I upgraded the server with
sudo apt update
sudo apt upgrade
Then I upgraded the fat client
sudo ltsp-chroot -m
sudo apt update
sudo apt upgrade
exit
sudo ltsp-update-image
sudo ltsp-update-kernels
Now when I try to start a fat client I get the following error
Negoatiation: ..Error: Read failed: End of file
Exiting.
- Boot args (cat /proc/cmdline)
Check rootdelay=
Check root
- Missing modules
ALERT! /dev/nbd0 does not exist . Dropping to shell!
Then I'm just stuck at busybox.
Tried the following two commands, but that didn't help
sudo ltsp-config nbd-server
sudo service nbd-server restart
Tried adding nbd to the server
sudo modprobe nbd
Now I can list /dev/nbd0 on the server, but still not boot the client.

Michael Pope

2017-03-29 23:53:05 UTC

Permalink

I just upgraded nbd-server (on my LTSP debian testing server) and
nbd-client (within my chroot image) and now I can boot the thin clients.
Seems like vagrant's fix has solved my problem, thank you.

Ref;

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=846998#27

from
Michael

Post by Peter Tuharsky
I got into the same problem after installation of Debian Stretch, that
is currently in RC stage.
I applied settings from well-running Debian Jessie system. Everything
Negotiation failed/8a: Requested export not found, or is TLS-only and
client did not negotiate TLS
Does somebody have an idea, what's going on?
Am I doing something wrong? Or is it some grave bug in Stretch that
should be reported?

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t***@misbb.sk

2017-03-30 18:45:15 UTC

Permalink

That's great news. From which repository did You upgrade those packages?

Post by Michael Pope
I just upgraded nbd-server (on my LTSP debian testing server) and
nbd-client (within my chroot image) and now I can boot the thin clients.
Seems like vagrant's fix has solved my problem, thank you.
Ref;
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=846998#27
from
Michael

Peter Tuharsky

2017-03-31 06:10:53 UTC

Permalink

Well, I have just updated from stretch repo and it works.

Thank You, Vagrant!

Post by t***@misbb.sk
That's great news. From which repository did You upgrade those packages?

Michael Pope

2017-04-04 11:32:18 UTC

Permalink

It was from Debian testing aka stretch.

Post by t***@misbb.sk
That's great news. From which repository did You upgrade those packages?

Peter Tuharsky

2017-04-04 17:01:18 UTC

Permalink

Hi folks,

I don't know whether someone has experience with jackd running as localapp.

I have had working setup in Debian Jessie where I started qjackctl using
ltsp-localapps, then started Qsynth with ltsp-localapps and was able to
play midi thru it on thin client.

However, in Debian Stretch, I couldn't start Qjackctl. When I do, whole
desktop freezes and nothing shows up. When I shut down local qjackctl
process from the client console, desktop unfreezes.

What's wrong with qjackctl or LTSP now?

Mgr. Peter Tuharsky

2017-04-05 07:04:55 UTC

Permalink

I have reported it to Debian as Bug#859595

Post by Peter Tuharsky
Hi folks,
I don't know whether someone has experience with jackd running as localapp.
I have had working setup in Debian Jessie where I started qjackctl using
ltsp-localapps, then started Qsynth with ltsp-localapps and was able to
play midi thru it on thin client.
However, in Debian Stretch, I couldn't start Qjackctl. When I do, whole
desktop freezes and nothing shows up. When I shut down local qjackctl
process from the client console, desktop unfreezes.
What's wrong with qjackctl or LTSP now?
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_____________________________________________________________________
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For additional LTSP help, try #ltsp channel on irc.freenode.net