The "defconfig" file is present in the meta-layers and copied to the kernel build directory. It is used to create the ".config" file in the kernel source directory.
If you modify the ".config" file, you will see changes in the kernel file. if you modify the defconfig file in the build directory, nothing happens. I typically change the ".config" and copy the result to the "defconfig" in the meta-layer. Then I rebuild from scratch. bitbake -c cleansstate virtual/kernel bitbake virtual/kernel Best Regards Ulf Samuelsson u...@emagii.com +46 (722) 427 437 22 okt 2013 kl. 14:04 skrev matti kaasinen <matti.kaasi...@gmail.com>: > Hi! > > What configuration kernel build really uses - .config or defconfig? > It seems, that menuconfig (bitbake -c menuconfig ) use always .config file. > > I have problem that changes in defconfig are not seen in kernel features. > Instead they seem the same that are in .config file > > I have tried configuration fragments, patches and providing defconfig > directly. > > They all seem to give proper defconfig. However, menuconfig never provide > the changed configurations. Also, for instance when I try to configure HW > EEC operation for NAND flash using CONFIG_MTD_NAND_OMAP_BCH. > omap2.c reports that "CONFIG_MTD_NAND_OMAP_BCH is not enabled". > > I've been workin on beaglebone variant - layer over beaglebone. > Build Configuration: > BB_VERSION = "1.17.0" > TARGET_ARCH = "arm" > TARGET_OS = "linux-gnueabi" > MACHINE = "beaglebone" > DISTRO = "angstrom" > DISTRO_VERSION = "v2012.12" > TUNE_FEATURES = "armv7a vfp neon cortexa8" > TARGET_FPU = "vfp-neon" > oe_sitecno > oe_emergence = "<unknown>:<unknown>" > meta-angstrom = > "angstrom-v2012.12-yocto1.3:b7f8207b94d9a0ece73ad212a193cb2c95bd17ee" > > These setting give kernel 3.8.11. > > Is there something I have missed? > Thanks in advance, > Matti > _______________________________________________ > Angstrom-distro-devel mailing list > Angstrom-distro-devel@linuxtogo.org > http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/angstrom-distro-devel _______________________________________________ Angstrom-distro-devel mailing list Angstrom-distro-devel@linuxtogo.org http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/angstrom-distro-devel
