ltsp-pnp boot issues

classic Classic list List threaded Threaded
3 messages Options
Reply | Threaded
Open this post in threaded view
|

ltsp-pnp boot issues

Jim Christiansen-2
Hello again,

I've had a chance to try out an ltsp-pnp install in my classroom using guides such as:

https://help.ubuntu.com/community/UbuntuLTSP/ltsp-pnp

or


I'm having an issue where clients that are powered up minutes after the first dozen boxes have booted, get ip numbers for the boot server,  gateway and dhcp server from one of the first booted clients.

When this happens nothing obviously works! and the clients rests at a BusyBox shell..  like this:


I have done a ton of reading and do know that the /etc/ltsp/dhcpd.conf file is being read.  I'm an external dhcp service through my router and do not have the ltsp server providing a range through the /etc/ltsp/dhcpd.conf file.  I have inserted nameserver 192.168.1.254 into my /etc/resolvconf/resolv.conf.d/head file.

Here are the key settings in my ltsp-server-dnsmasq.conf file...

#dhcp-range=192.168.1.110,192.168.1.145,8h
dhcp-option=17,/opt/ltsp/images/amd64
port=0
bind-dynamic

With these settings I can boot many clients simultaneously.  The trouble occurs when I boot other boxes 2 or 3 minutes or later.  they all get wierd ip number and boo info from newly running clients...

I sure would apprciate any advice.  Thanks,  Jim





--
edubuntu-users mailing list
[hidden email]
Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/edubuntu-users
Reply | Threaded
Open this post in threaded view
|

Free educational software - dynamic table

Paulo Francisco Slomp

Free educational software - dynamic table

One might think that drawing up a table with information about free
educational programs is not a novelty: You can find on the Internet
dozens of lists and tables with this content, but in general the tables
are static, without interactivity, and are sorted by areas of knowledge,
providing a short description of each program. Some of these tables
record the official web page of the programs. More rarely, the table
presents the possibility of reorganizing the data so that the user can
easily combine the most interesting information.

For example:

- Can the software be used in elementary school, high school, university?

- The program has versions for different operating systems such as
GNU/Linux, Windows and Mac?

- In which web page can I download these versions?

- What kind of free software license (GNU-GPL, Apache, MIT, BSD, etc.)?

- In which web page can I download the source code?

- The program interface is translated into the students native language
of the my classroom?

- Is there a page about the program on Wikipedia?

The dynamic table free educational software -
http://ufrgs.br/soft-livre-edu/dynamic-table - answer these questions.
In addition, through a few clicks, intuitively, the user can reorder the
information in succession, keeping the previous order. That is, the
user,  to reorder the table to display the programs that can be used for
high school, for example, can then reorder by clicking the first line of
the GNU-Linux column, without breaking the previous order.

In addition to the technical features, the wiki format allows collective
work, through the interaction between users. The bidirectionality
between the table and the users brings the  possibility to add new
content and correct errors and inaccuracies directly, without requesting
permission from authors. You can contribute even anonymously.

In quantitative terms, the table features more than 320 educational
programs for areas such as Biology, Physics, Geography, Mathematics and
Chemistry, among others. Each area is different from the others by
colors, for easier viewing of the set.

The free educational software dynamic table is the result of a
collective work. Several generous people contributed to the initial
translation to 6 languages and, after publication, several other people
have contributed voluntarily. A lot of people contributed disclosing the
table through blogs, microblogs, social networks, mailing lists and
websites. Sites of governmental institutions in the education area and
associations dedicated to the defense and promotion of free software
also disclosed the table. Thanks  to all.

One way we found to return this people support was to publish the table
with the Creative Commons BY-SA license. We believe that a collective
work should not have private ownership. In this type of license it is
allowed republishing, remixing and even commercial use. In the CC-BY-SA
it is not allowed to abandon those freedoms.

In addition to the native language of the initial authors, Brazilian
Portuguese, there are versions in English, Spanish, French, Italian,
German and European Portuguese.


--
edubuntu-users mailing list
[hidden email]
Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/edubuntu-users
Reply | Threaded
Open this post in threaded view
|

Re: ltsp-pnp boot issues

Άλκης Γεωργόπουλος
In reply to this post by Jim Christiansen-2
In ltsp-pnp there's no /etc/ltsp/dhcpd.conf file,
as dnsmasq is used instead of isc-dhcp-server.

The default lts.conf (sudo ltsp-config lts.conf) contains this line:
RM_SYSTEM_SERVICES="tty1 apache2 clamav-daemon clamav-freshclam dnsmasq
mysql nbd-server nfs-kernel-server php5-fpm shared-folders ssh squid3
whoopsie x2goserver mediatomb timidity smbd netatalk minidlna dhcp-probe
tty1 lxc"

Note the "dnsmasq" service there. In other words, dnsmasq isn't supposed
to be running on the clients.

So the problem probably is that you don't have a correct lts.conf, or
that your clients don't get it from the server successfully.
`getltscfg -a` locally on the client will tell you.

Another thing to try is to symlink amd64 in i386 in tftp:
sudo ln -s amd64 /var/lib/tftpboot/ltsp/i386

On 23/04/2015 11:40 μμ, Jim Christiansen wrote:

> Hello again,
>
> I've had a chance to try out an ltsp-pnp install in my classroom using
> guides such as:
>
> https://help.ubuntu.com/community/UbuntuLTSP/ltsp-pnp
>
> or
>
> https://ubuntu-mate.community/t/how-to-install-pnp-ltsp-on-ubuntu-mate-14-04-lts/566
>
> I'm having an issue where clients that are powered up minutes after the
> first dozen boxes have booted, get ip numbers for the boot server,
>   gateway and dhcp server from one of the first booted clients.
>
> When this happens nothing obviously works! and the clients rests at a
> BusyBox shell..  like this:
>
> http://www.christiansens.ca/images/bad-boot.jpg
>
> I have done a ton of reading and do know that the /etc/ltsp/dhcpd.conf
> file is being read.  I'm an external dhcp service through my router and
> do not have the ltsp server providing a range through
> the /etc/ltsp/dhcpd.conf file.  I have inserted nameserver 192.168.1.254
> into my /etc/resolvconf/resolv.conf.d/head file.
>
> Here are the key settings in my ltsp-server-dnsmasq.conf file...
>
> #dhcp-range=192.168.1.110,192.168.1.145,8h
> dhcp-option=17,/opt/ltsp/images/amd64
> port=0
> bind-dynamic
>
> With these settings I can boot many clients simultaneously.  The trouble
> occurs when I boot other boxes 2 or 3 minutes or later.  they all get
> wierd ip number and boo info from newly running clients...
>
> I sure would apprciate any advice.  Thanks,  Jim
>
>
>
>
>
>


--
edubuntu-users mailing list
[hidden email]
Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/edubuntu-users