On 07/09/2015 03:17 PM, g...@novadsp.com wrote:
I got down to the stage of using Wireshark to trace the DHCP requests made 
during boot. The good board issues one, immediately gets an address and 
proceeds to the TTY. The others issue 2 DHCP requests that are never 
acknowledged, despite apparently continuing to retry (as per the serial log 
content). 'Interestingly' the same boards are slow at exactly the same point 
when booting off an SD card. So I really am at a loss here. Bear in mind all 3 
have identical flashed images, uEnv settings and are using the same TFTP server 
+ NFS filesystem.

There is a bug report from late 2014 regarding a problem in ifup 
(https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=771943) which mentions 
system.debug-shell. I've got this added to the kernel command line but not sure 
if it is accessible.

Does the omap-image-builder Ubuntu distro work with NFS?

TAIA.
So you see the dhcp request, bump up the logging level on your dhcp server, look at it's logs. Could be a config issue with dpcp server. Does Wireshark show unique mac address in the dhcp request?

Mike

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