On Tue, 2010-03-23 at 09:04 -0400, Brian Hutchinson wrote: > Thanks to everyone for the great suggestions! > > Since I'm new at going this deep into shell debugging (and almost > never on a embedded target) I'll have to check out each of these > suggestions as I've never heard of some of them. > > Is it possible to start preinit with -x and redirect the output to the > console or network? I have minicom running on the serial port and see > some of the echo statements in the script ... I just don't see the -x > debug info I was hoping to see.
You won't see anything from preinit with set -x because when preinit is first called there is no stdin/stdout. One of the things preinit does is attach itself to a terminal, if there is one (otherwise it just connects to a pseudo-terminal) > > I didn't think about running wireshark to capture the script output > ... I'll have to look into that. I'm well versed in wireshark. > > What is this 'pure' /jffs envrionment? Is it possible to setup the > union so that 'any' file can be modified? That is kind of what I was > expecting to have but I realize some of the preinit stuff has to run > from squashfs because the union isn't established that early in the > startup. > No not pure /jffs - that's just the mountpoint when using a jffs2 overlay over the squashfs. It is possible to build/flash images that don't have a squashfs at all, and which store everything on a jffs2 filesystem (no overlay). This images are larger than the squashfs images so you may not have enough flash memory for one of them. -- And that's my crabbing done for the day. Got it out of the way early, now I have the rest of the afternoon to sniff fragrant tea-roses or strangle cute bunnies or something. -- Michael Devore GnuPG Key Fingerprint 86 F5 81 A5 D4 2E 1F 1C http://gnupg.org The C Shore (Daniel Dickinson's Website) http://cshore.is-a-geek.com
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