hi, i have a driver, called my-driver.c here, that builds cleanly on a clean, official 2.6.9 tree: ... MODPOST CC drivers/char/my-driver.mod.o LD [M] drivers/char/my-driver.ko .. i made modifications to the Kconfig and Makefile, .config, etc. so that it all goes well. however, i would like to compile and run it in the stock kernel that a given fc3 machine is running. i gather that i have to build it in /lib/modules/2.6.9-1.667/build/ however, i am not sure _exactly_ how. first, do i need the kernel sources in /usr/src/linux-2.6.9-1.667? i would hope not, since i see a build/include directory, etc. (also, i guess not, since the nvidia driver seems to have been partially compiled dynamically). currently i don't have the sources in the official place, but i think i know that i can build them and make them available [*]. however, still what do i do then? i edited Kconfig, .config and the Makefile just like i did in the official tree, did make oldconfig, and then ... make or make modules barfs ... [17:45:55](2)machina:build# pwd /lib/modules/2.6.9-1.667/build [17:47:10](2)machina:build# make modules CHK include/linux/version.h CHK include/asm-x86_64/offset.h /bin/sh: arch/x86_64/kernel/asm-offsets.s: No such file or directory UPD include/asm-x86_64/offset.h mv: cannot stat `include/asm-x86_64/offset.h.tmp': No such file or directory make: *** [include/asm-x86_64/offset.h] Error 1 [17:47:11](2)machina:build# however, interestingly, i seem to compile the module just fine like this: [17:47:11](2)machina:build# make drivers/char/my-driver.o HOSTCC scripts/basic/fixdep HOSTCC scripts/basic/split-include HOSTCC scripts/basic/docproc HOSTCC scripts/genksyms/genksyms.o HOSTCC scripts/genksyms/lex.o HOSTCC scripts/genksyms/parse.o HOSTLD scripts/genksyms/genksyms CC scripts/mod/empty.o HOSTCC scripts/mod/mk_elfconfig MKELF scripts/mod/elfconfig.h HOSTCC scripts/mod/file2alias.o HOSTCC scripts/mod/modpost.o HOSTCC scripts/mod/sumversion.o HOSTLD scripts/mod/modpost HOSTCC scripts/kallsyms HOSTCC scripts/pnmtologo HOSTCC scripts/conmakehash CC [M] drivers/char/my-driver.o [17:47:29](2)machina:build# however .. i can't seem to be able to load it: [17:49:34](2)machina:build# insmod drivers/char/my-driver.o my-driver: error inserting 'drivers/char/my-driver.o': -1 Invalid module format [17:50:00](2)machina:build# [17:50:14](2)machina:build# uname -a Linux machina 2.6.9-1.667 #1 Tue Nov 2 14:50:10 EST 2004 x86_64 x86_64 x86_64 GNU/Linux [17:51:08](2)machina:build# i think i am missing something simple. one thing i have noticed, though, is that working in this directory is really easy to _blow away_ /lib/modules/2.6.9-1.667/kernel/. this is very alarming, so i need to be careful about building this stuff. again, the goal is to automate compiling this module, for _any_ FC3 machine (even if the kernel has been upgraded) without installing a new kernel, of course. the assumption is that the kernel running has been installed relatively "properly" within the system, with all modules, etc. thanks in advance, -c [*] i got the hint from the recent thread about the kernel sources ...