Hi Fabien, I am working through your ROACH NFS guide, and have found it very useful so far. Thanks! Not everything is yet working, but I wanted to report a couple of issues that I found so far. First, there are a couple of typos in the section titled "The filesystem," where the directory roach_boot is given as boot_roach. Second, our test of DHCP did not work, and there are some useful things we discovered for checking why. We ran tcpdump (has to be run as root), to see the DCHP requests being made by the ROACH, but dnsmasq did not respond. This was traced to the required ports not being open in the firewall. We opened tcp port 53 and udp port 67. To see if dnsmasq has those ports open for listening, one can issue the netstat -l command. I am a complete novice at this, so you may know a better approach, but something along these lines would be helpful to add to the wiki page.
Also a question. At the Green Bank CASPER workshop last week it was suggested that if you are running a system with a lot of ROACHes, to use the dnsmasq.conf entry read-ethers, and put MAC address/IP address pairings in the file /etc/ethers file. Is this an alternative to the dhcp-host= assignment, or in addition to it? An example of an /etc/ethers file might be useful to include. I will report back as I work through the rest of it, if I find any other issues. Regards, Dale ________________________________ From: [email protected] [[email protected]] On Behalf Of fabien [[email protected]] Sent: Monday, August 06, 2012 6:16 AM To: [email protected] Subject: Re: [casper] NFS server + Casper tutorials Dear all, I updated the ROACH NFS guide<https://casper.berkeley.edu/wiki/ROACH_NFS_guide> on wiki. Please tell me if you find any mistake. After the ROACH NFS Guide, I added a section 'Getting started with CASPER tutorials' (which solves some of the problems you can have when doing the tutorials 1, 2 or 3). It completes the ROACH NFS Guide by specifying what additional packages should be installed, or what file should be modified. If you want this section to be added to another wiki page, or to create a wiki page only with this section, please tell me. Regards, Fabien On 07/13/2012 01:13 AM, Mark Wagner wrote: Hi Fabien, Thanks! This looks really good, and definitely covers issues that might come up. Scientific Linux is a variant of Enterprise Linux (RHEL, Suse, etc.), which many of us use, so I think having instructions for both is really helpful. Would you be willing to update the ROACH NFS guide<https://casper.berkeley.edu/wiki/ROACH_NFS_guide> on the wiki to reflect what you've done? Mark On Sun, Jul 8, 2012 at 8:32 PM, fabien <[email protected]<mailto:[email protected]>> wrote: Dear all, Some months ago I have been installing a NFS server on a computer with Scientific Linux, in order to boot a ROACH. Then, I did some Casper's tutorials. I encountered some problems, solved them, and wrote a note about it (attached). A part of this note (NFS server) is based on the ROACH NFS guide. I hope it can be useful. If you find any mistakes or have any suggestions, please let me know. Regards, Fabien
