Latest LQ Deal: Complete CCNA, CCNP & Red Hat Certification Training Bundle
Go Back > Forums > Linux Forums > Linux - Networking
User Name
Linux - Networking This forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.


  Search this Thread
Old 04-03-2010, 05:41 PM   #1
LQ Newbie
Registered: Apr 2010
Posts: 1

Rep: Reputation: 0
Talking lamboot error on rsh: no route to host

I am using Fedora-10 on 64-bit quad-core xeon processors.

I ran ssh-keygen and established passwordless connection between host-client and created a host file named lamhosts as follows: cpu=4 cpu=4

where 11 is the host server and 21 is one of the nodes.

When I executed 'lamboot -v lamhosts', it failed to boot nodes:

ssi:boot:base:linear: Failed to boot n1 (

By googling, I found the error but couldn't yet find a solution.

Any help will be appreciated.
Old 04-04-2010, 08:39 PM   #2
Senior Member
Registered: May 2004
Location: In the DC 'burbs
Distribution: Arch, Scientific Linux, Debian, Ubuntu
Posts: 4,284

Rep: Reputation: 371Reputation: 371Reputation: 371Reputation: 371
Note that rsh != ssh. It;s a different (older and less secure) protocol that's still used quite a bit in high performance computing applications (as it does not have the encryption overhead of ssh). The rsh protocol is not enabled by default on Fedora, you'll need to edit the files in /etc/xinetd.d and enable it. I usually enable rsh, rlogin, and rexec in HPC encironments. You will need to restart xinetd after enablingthese services.

Note that if you're using LAM-MPI that is has been surperceded by the OpenMPI project. OpenMPI supports job launching over SSH as well as RSH. I'm not sure if LAM-MPI ever supported this as I used MPICH before switching to OpenMPI.


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
No route to host - Error waranha Linux - Networking 3 02-18-2010 07:29 AM
rsh connection refused while lamboot ankurpachauri Linux - General 1 09-07-2009 06:33 AM
No route to host error... alwaysrookie Programming 2 11-04-2005 01:33 PM
no route to host while doing rsh cheeku Linux - Networking 5 08-22-2004 09:24 AM
Error: No route to host! CRB314 Linux - Newbie 1 03-22-2004 04:37 AM > Forums > Linux Forums > Linux - Networking

All times are GMT -5. The time now is 04:07 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration