1. Overview

2. Compile the kernel

3. Copy the kernel

4. Reboot and mount the HFS hard drive

5. Detailed Steps

6. Enter the Gentoo Linux kernel directory

cd /usr/src/linux

2. Compile the kernel

make menuconfig

In order, select File system—> Miscellaneous filesystems, and choose the two Apple-prefixed options as "compile as a module"

make && make modules_install

mount /boot

cp -av arch/x86_64/boot/bzImage /boot/kernel-x.y.z-gentoo

shutdown -r now

3. Mount the hard drive with the mount command

mount /dev/sda1 /mnt