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Hi, magn0x.

The 'No such file exists' error suggests that you've not set up TFTP properly. Bear in mind that pxelinux.0 should be in:



/var/lib/tftpboot/


And your DHCP server config...

Hi, magn0x.

Have you monitored the DHCP server to see it it is responding?



tail -f /var/log/daemon.log | fgrep DHCP


HTH,

Hi, wbw.

Your network administrator (if that's not you) will not be happy about you putting another DHCP server on the LAN if one is running already. It's likely that one of your switches is the...

Hi, nandugopan.

You don't need Kerrighed SSI to run MPICH programs, which use the MPICH library under a standard linux kernel. However, one strategy I've used is to configure my MPI hostfile to...

Hi, Trongersoll.

Re: alternatives - It depends what you want to do: The main feature of Kerrighed is SSI (Single System Image). I used to use 32-bit openMosix, but this project has now closed:

...

Hi, togueter.

The default Kerrighed install builds an NFSROOT kernel, and the head node does NOT run the Kerrighed kernel. If you want to run a Kerrighed kernel on the head node, you need to...

Hello, anshumax.

The default kerrighed kernel does not use an initrd, so you have to compile the correct ethernet driver into the kernel in order to access the NFSROOT.

HTH,

Tony.

Hello, amiller2k10.

It's possible that you've not compiled the Kerrighed kernel with support for your network card built-in, if the NFSROOT filesystem is inaccessible.

HTH,

Tony.

Hello, phydiux.

We got this far, but found the cluster very fragile and have gone back to 2.3.0 which is more stable in our hands. Have you done much testing?

Bye,

Tony.

I decided to replace our UNFS3+ClusterNFS stateless node provisioning with Perceus. We've got Perceus 1.6 installed from the deb:

http://http://altruistic.infiscale.org/deb/perceus16.deb

And we...

Hi,

I'm using the same motherboard with Ubuntu 6.06 LTS, 8.04 LTS and 10.04 LTS without any problems. Try removing *all* entries from:

/etc/udev/rules.d/70-persistent-net.rules

HTH,

...

I'm going to try booting nodes on our Kerrighed Beowulf using Perceus:

http://www.perceus.org

I mentioned Perceus some time ago on this thread - has anyone succeeded in setting up Perceus for...

Hello, Louis.

AFAIK Ubuntu works the same way as Debian, but I find it a lot easier to build the NIC driver into the kernel and PXE-boot without an initrd :-)

Bye,

Tony.

Hello, D3ATH-D3AL3R.

There was a graphical tool to show migration in openMosix:

http://www.openmosixview.com/

However this, like openMosix itself, is now unsupported...

I've been thinking...

Hello, Louis.

In our tests, 32-bit Kerrighed seems very reluctant to use more than one core per processor chip and we had to get the cluster loaded significantly more than one CPU hog per CPU core...

Hello, quequotion.

Yes, we specified it to be consistent with the automatic configuration of the PXE-booted nodes.





manager@kitcat[manager] cat /etc/exports
# /etc/exports #

Hello, Benic.

Yes, you need to have SSH servers on all your nodes and set-up password-less logins. LAM is very easy to use: First create SSH keys (use a 'null/empty' pass-phrase when prompted)

...

Hello, quequotion.

I've been away from this thread for a while, but we've been working on the "server-as-node" configuration of Alicia's Beowulf here in Aberdeen.

We can migrate processes off...

Hello, Keith.

I've just noticed the same problem in Dapper (6.06 LTS), and it's caused by a bug in /dev/MAKEDEV, which interprets "fd" as a request to create the "floppy" devices instead of the...

Hello, coolgenes.

Bio-Linux 5.0 is based on Ubuntu 8.04 LTS, and there are some 'hardy' dependencies. Have you tried installing the Bio-Linux Staden?



# add to /etc/apt/sources.list:
# deb...

Hello, renkinjutsu.

The answer to your question is a definite maybe ;-)

I also want to use Kerrighed, with the 'head' node (i.e. login server) being part of the SSI cluster. However, it's not...

Hello, baggzy.

I had similar symptoms to this because "udev" isn't working properly in our setup on Alicia's cluster "kitcat" - Seems the tty's devices are not created and the /dev/random|urandom...

Hello, baggzy.

Are you sharing the same NFSROOT for both systems r/w?

Try using two completely separate NFSROOT filesystems or, as I've previously mentioned here, use UNFS3 with 'cluster'...

Hello, baggzy.

Are you running a 32-bit or 64-bit kernel?

As Louis pointed out recently, the Kerrighed developers are giving priority to the 64-bit kernel and he commends using Kerrighed 2.3.0...

Hello, o0splitpaw0o.

Yes, the thread has been a bit quiet - thanks for posting :-)



This is how I've done it: First you need to configure your DHCP server: