Using Knoppix to make a Linux cluster on your home network

[johnb]

can you set-up a cluster at school with cd's?
johnb

[A. Jorge Garcia]

Yes, I had a cluster running with several QUANTAIN CDs. I'd like to have a more permanent hdinstall, however.

What I'd really like is to have 24 clients PXE boot off one server. This server I can access via ssh from anywhere in the school and from home (static ip). It'd really be something to be able to access a cluster from home! I can't get PXE working either....

TIA,
AJG

[johnb]

Please check your other post
johnb

[A. Jorge Garcia]

OK, finally I had a chance to play with this! I knoppix-installered 4 PCs on my LAN with QUANTIAN. After fixing lilo and netcardconfig like any ordinary knoppix hdinstall, I took the following steps (thanx to johnb) w/o PXE.

mkdir /mfs
kate /etc/fstab
(added: mfs /mfs mfs dfsa=1 0 0)
kate /etc/mtab
(added: /mfs /mfs mfs rw,dfsa=1 0 0)
/etc/init.d/openmosix restart

All went well when I tried stressing this little cluster with kandel (using openmosixview to see what was going on). The only problem is that I have to issue the commandline /etc/init.d/openmosix restart from a root shell anytime I reboot. Is there a way to have this all start-up at boot up?

TIA,
AJG

[js290]

Does this happen running live or from hard drive install?
johnb

This happens after the hard drive installation and during the openmosix terminalserver configuration.

I tried the steps you described using just regular Knoppix and didn't get any of the errors I encountered with clusterKnoppix.

The only complaint I have is the instructions on coping the CD contents to the seperate partition could be a bit more clear. I wasn't able to do it with the GUI, so I ended up rsyncing the contents of the CD on to the seperate directory.

I also wasn't asked by the terminalserver setup process to configure exporting the filesystem that the CDROM contents were copied to. I manually configured this without much problems. The script defaults to /cdrom. I mounted my that partition as /knoppix. I had to modify the /usr/sbin/knoppix-terminalserver script and the /etc/fstab and /etc/exports accordingly.

[rex]

so...
is ltsp also installed in cluster knoppix?
is there a stripped down version so it can run smoothly on older computer?

[Lidio Mozi]

Hi js290.

I have been fighting with LSTP these last weeks, and I succeded to get terminal server running only copying KNOPPIX image into /cdrom
My target is to copy there only the contents (so that I could remaster it chrooting onto /cdrom) and then get the terminal server running as well as in image case.

Could you please post your changes to "configure exporting the filesystem that the CDROM contents were copied to".

I understood they should be:
- /usr/sbin/knoppix-terminalserver script
- /etc/fstab;
- /etc/exports.

Better could be a mini how-to.

Thanks in advance for any possible help.

[rex]

these are few links that may help:
http://www.k12ltsp.org/ltsp-om5.html
http://openmosix.sourceforge.net/ltsp-omr4-1.html
http://ltsp.org/contrib/ltsp-om5r3c.html
http://www.lpmo.edu/~daniau/ltsp-mosix/
http://bccd.cs.uni.edu/

[Super-t]

Hil,
I hope someone can help with this...
I am testing clusterknoppix 3.4 (5/10) on vmware v4.5.1.
I have created one "master" and one "slave" vm nodes and installed clusterknoppix to the virtual HDD on the master.
I have set this pair up according to the excellent help posted here by johnb.
This seems to work, but sometimes when I execute openmosixview, it gives the error;
openmosix not started

Even though I just started it and the openmosix term server with

/etc/init.d/openmosix restart
/etc/init.d/knoppix-terminalopenmosixserver restart

Also, is there a way to save the setting for knoppix-terminalopenmosixserver script so I don't have to go thru the setup everytime. I have clusterKnoppix installed to the HDD of the virtual machine.

Any help or suggestions appreciated!!

Cheers!

[A. Jorge Garcia]

I put /etc/init.d/openmosix restart in /etc/init.d/bootmisc.sh and it works fine!

Good Luck,
AJG