Linux crossbuild essential armhf broken packages

Question

I am trying to install and setup the Linux Kernel on my Raspberry Pi Linux Kernel. I've referenced the following website: https://www.raspberrypi.com/documentation/computers/linux_kernel.html.

So far, I've run the following commands on my raspberry pi in the following sequence:

1. sudo apt update
2. sudo apt upgrade
3. sudo apt-get autoremove
4. sudo apt install git bc bison flex libssl-dev make
5. git clone --depth=1 https://github.com/raspberrypi/linux
6. cd linux KERNEL=kernel7 make bcm2709_defconfig
7. make -j4 zImage modules dtbs
8. sudo make modules_install
9. sudo cp arch/arm/boot/dts/*.dtb /boot/
10. sudo cp arch/arm/boot/dts/overlays/.dtb /boot/overlays/
11. sudo cp arch/arm/boot/dts/overlays/README /boot/overlays/
12. sudo cp arch/arm/boot/zImage /boot/$KERNEL.img
13. sudo apt install git bc bison flex libssl-dev make libc6-dev libncurses5-dev
14. sudo apt install crossbuild-essential-armhf

However,I encountered the following error when executing the command at point 14.

Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 crossbuild-essential-armhf : Depends: gcc-arm-linux-gnueabihf (>= 5.3) but it is not going to be installed
                              Depends: g++-arm-linux-gnueabihf (>= 5.3) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

Answer 1

Try installing the dependency that says it will not be installed. For example:

sudo apt install gcc-arm-linux-gnueabihf

Eventually apt will say something like "Depends: [package] is not installable"

Answer 2

What raspberry OS version are you using? Maybe you could avoid the problems by using a newer raspberry OS version.

In any case, I would first try to:

sudo apt-get update
sudo apt-get install gcc-arm-linux-gnueabihf
sudo apt-get install g++-arm-linux-gnueabihf
sudo apt --fix-broken install