Hey Martin, thanks again for your help! So I had to bring back 'sneaker-net' to get strace on the machine via flash drive (after locating one), but it is now on the machine! I could not see anything in the 'ps' output (and it is the GNU version) regarding what was being called for contacting a DHCP server for the adapter. I also tried running the command that Peter suggested, but the command he listed has invalid syntax. After a few more calls and a ton of goop from 'strace', it appears that 'udhcpc' was being called as follows (at least on my dev machine):
udhcpc -R -n -p /var/run/udhcpc.eth0.pid -i eth0 (Just in case anyone else comes across this post) Now that I know what is being called, can anyone help with the other part of the original question? Thanks, Dave On 9/20/16, Martin Townsend <mtownsend1...@gmail.com> wrote: > Hi David, > > I've had a quick look through the ifupdown code what DHCP binary gets > called and with what parameters is specific to how you've configured > busybox. > If you have the full version of ps you may be able to see the full > command line using ps aux. Maybe the busybox version will show this > information as well. > Another way which would be hard to capture is > cat /proc/pid/cmdline > but the problem is obtaining pid and then performing the cat command. > If you kick off the DHCP without a network cable plugged in, the > process should hang around a whilst it's sending it's DISCOVER > messages. > > If this fails I would try and get strace on the board. Can't you run > udhcpc/dhclient with the board connected to a network with a DHCP > server? USB Memory Stick? > > -Martin. > > > On Tue, Sep 20, 2016 at 2:54 PM, David Henderson > <dhender...@digital-pipe.com> wrote: >> Good morning all, I was just following up with this. >> >> Thanks, >> Dave >> >> >> On 9/19/16, David Henderson <dhender...@digital-pipe.com> wrote: >>> Plus that would only answer part of the original question. Any input >>> on that second part? >>> >>> Thanks, >>> Dave >>> >>> >>> On 9/19/16, David Henderson <dhender...@digital-pipe.com> wrote: >>>> Thanks again for your continued help Peter! Unfortunately the machine >>>> that I'm working on doesn't currently have a network connection since >>>> I've been fiddling with things so strace can't be installed. >>>> >>>> Dave >>>> >>>> >>>> On 9/19/16, Peter Korsgaard <pe...@korsgaard.com> wrote: >>>>>>>>>> "David" == David Henderson <dhender...@digital-pipe.com> writes: >>>>> >>>>> > Good morning Peter, thanks for your reply. C/C++ is not my forte >>>>> and >>>>> > while it may be readable for you, it may not be for others. >>>>> >>>>> Then use strace as I suggested. >>>>> >>>>> -- >>>>> Bye, Peter Korsgaard >>>>> >>>> >>> >> _______________________________________________ >> busybox mailing list >> busybox@busybox.net >> http://lists.busybox.net/mailman/listinfo/busybox > _______________________________________________ busybox mailing list busybox@busybox.net http://lists.busybox.net/mailman/listinfo/busybox
