I've been building WNDR3800 builds using Attitude Adjustment for a while now.
Unfortunately, it seems something has gone awry and I can't build a usable image
any more.
Sad that it happens for you, but great to hear that I am not alone with the
same problem. I even wrote a ticket about this, but I had then a wrong idea
about the problem.
https://lists.openwrt.org/pipermail/openwrt-tickets/2012-November/thread.html#50022
https://dev.openwrt.org/ticket/12454
Discussion on forum: https://forum.openwrt.org/viewtopic.php?id=40565
I have been building my 3700 build for two years now, without any similar
problems until now. The same config worked until early November. I had not
changed it since August.
I first thought that it might be some flash chip problem, but as the problem
concerns at least three known persons (you, me and Manani
https://forum.openwrt.org/viewtopic.php?pid=183507#p183507 ) and I am able to
flash Netgear stock image and all old images quite ok, I now believe it is
not that.
Currently both trunk and AA builds do fail for me, so it should be some
change done to both code trees, or something done before the code split in
October.
As this error happens inside the original Netgear u-boot during kernel image
lzma decompression and the control never gets passed for the kernel itself,
this has nothing to do with the code of packages or kernel, but maybe has
with the total size. Although I am quite able to flash the orginal over 6.6
MB Netgear firmware, so it is not the absolute size...
As far as I understand, there are at least 3-4 stages in the image
generation. First there is the basic kernel, it is then packaged to squashfs,
which is then wrapped with lzma, Netgear magic is added to it, and an
additional header or the factory image. I believe that somehow the image gets
twisted so that the lzma decompression using the built-in Netgear u-boot fails.
Some debugging steps I have done:
- building versions 34045 (after make dirclean), 34055, 34066, 34075, 34085,
34103, 34115 and 34135 in succession and trying them in my 3700v2. All
worked. I did NOT "make clean" in between them. I then built 34135 after
"make dirclean" and surprisingly it failed... I will test again now that I
know it isn't a flash problem.
- creating a new Ubuntu 12.04.1 x64 in Virtualbox and re-fetching all Openwrt
sources and packages and rebuilding. No help. (I thought that it might be
effects of a patch in Ubuntu in November, so I pulled the 12.04.1 image and
used thus a fresh PC). No help.
I have considered creating a 32bit Ubuntu and trying with that.
If any of the developers have any debugging advice, please give it.
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