problems about building a raspbian kernel

[zfyseu]

Hello,everyone!

I try to follow the link "https://www.raspberrypi.org/documentati ... uilding.md" to build my own raspbian kernel.

Everything seems go well. However after I run the command "make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- INSTALL_MOD_PATH=mnt/ext4 modules_install"

there are nothing in the directory mnt/ext4.

Is there anyone know how to solve the problem?
Thanks!

[zfyseu]

I have known the reasons.

the "mnt/ext4" should be "/mnt/ext4"

however it can't boot.

Is there anyone know where to find the "bootcode.bin " and "start.elf"?

Thanks!

[DougieLawson]

Get the config with
sudo modprobe configs
zcat /proc/config.gz


Get the bootcode etc. from https://github.com/Hexxeh/rpi-firmware/ ... master.zip

Get the kernel source with https://github.com/Notro/rpi-source read the Wiki for that at https://github.com/Notro/rpi-source/wiki

[zfyseu]

Hello, DougieLawson!

Do you know how to edit the kernel option when cross compile the raspbian kernel?

Thanks.

[DougieLawson]

make oldconfig # to read an existing config file
make menuconfig # to use the config editor

[zfyseu]

Thanks!

I have tried what you said.
however when I run "make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- zImage modules dtbs"
it will returns:
"scripts/kconfig/conf --silentoldconfig Kconfig
*

Restart config... * *
Configure standard kernel features (expert users) * Configure standard kernel features (expert users) (EXPERT) [Y/?] y Enable 16-bit UID system calls (UID16) Y/n/? "
Do you know how to deal with it?

Thanks!