Hi,
I've understood a little bit better the udev problem (udev not loading required
drivers).
According to this link
(http://my.safaribooksonline.com/book/operating-systems-and-server-administration/embedded-linux/9780137061129/udev/ch19lev1sec8#X2ludGVybmFsX0h0bWxWaWV3P3htbGlkPTk3ODAxMzcwNjExMjklMkZjaDE5bGV2MXNlYzgmcXVlcnk9)
the modprobe command from busybox is not compatible with udev, thus no module
is loaded and no error is displayed.
The solution is to build module-init-tools wich seems not too complicated.
But before fixing this, we need to be able to build a recent udev that is aware
of recent hardware. Unfortunately, the initrd build mechanisme assumes that we
can use build host includes and libraries to build its components. While it
should work in most cases, it's a problem with components depending on
something newer that the version present on the build host.
for udev, we hit this problem several times:
1st we need a newer libblkid (fixed)
2nd, we need libkmod (not present at least on centos6) (fixed)
3rd, we need includes (input.h) for kernel 3.2+ and this is my problem.
I've tryed to add a -I$(INITRD_BUILD_DIR)/src/linux-2.7.5/include to the
CFLAGS, unfortunately, this is far not sufficient. as those includes assumes
some other definitions that are not yet in the build host /usr/include (too old
version).
I've also tryed to do a "make install" instead of "make install-exec" in many
rules so includes are installed in the $(INITRD_BUILD_DIR)/usr/include (then
cleared at the end before the mkinitrd) but this seems not sufficient.
So I think this is the wrong approach.
So for now, I'm stuck with udev. The current version is far too old for recent
hardwares, and newer versions can't be build.
ANY advise or help would be greatly apreciated
Best regards,
Olivier.
--
Olivier LAHAYE
CEA DRT/LIST/DCSI/DIR
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