HOW TO REBUILT THE ANDROID EMULATOR-SPECIFIC KERNEL: ==================================================== I. Helper script: ----------------- We now provide a helper script to rebuild the kernel, it is under distrib/rebuild-kernel.sh. You need the sources in android.git.kernel.org/kernel/common.git, in branch origin/archive/android-gldfish-2.6.29 (note the typo!) To rebuild the ARM kernel: cd $KERNEL_SOURCES /path/to/rebuild-kernel.sh --out=$ANDROID/prebuilt/android-arm/kernel To rebuild the x86 kernel: cd $KERNEL_SOURCES /path/to/rebuild-kernel.sh --arch=x86 --out=$ANDROID/prebuilt/android-x86/kernel Note that you will need to have your cross-toolchain in your path. If this is not the case, the script will complain and give you the expected name. Use --cross= to specify a different toolchain. See rebuild-kernel.sh --help for more options and details. II. Rebuilding from scratch: ---------------------------- If you don't or can't use the script, here are manual instructions: You need to have the Android toolchain in your path (i.e. 'arm-eabi-gcc --version' must work) then: git clone git://android.git.kernel.org/kernel/common.git kernel-common cd kernel-common git checkout origin/archive/android-gldfish-2.6.29 export CROSS_COMPILE=arm-eabi- export ARCH=arm export SUBARCH=arm make goldfish_defconfig # configure the kernel make -j2 # build it => this generates a file named arch/arm/boot/zImage NOTE: Branch android-goldfish-2.6.27 is obsolete now. Do not use it. Now, you can use it with: emulator -kernel path/to/your/new/zImage You can build an ARMv7-compatible kernel image by using goldfish_armv7_defconfg in the above instructions (instead of goldfish_defconfig). Note that you will need to enable ARMv7 emulation by using the -cpu cortex-a8 option, as in: emulator -kernel path/to/your/new/zImage -qemu -cpu cortex-a8 As a special convenience, if the name of your kernel image ends in -armv7, then the emulator binary will automatically enable ARMv7 emulation for you, so doing the following should be equivalent emulator -kernel path/to/your/kernel-armv7 Voila !