build latest zfs kernel module from source code on raspberrypi2 arm 32bit debian pios

build latest zfs kernel module from source code on raspberrypi2 arm 32bit debian pios.sh

sed -r -i'.BAK' 's/^deb(.*)$/deb\1 contrib/g' /etc/apt/sources.list

# MUST REMOVE zfs-dkms zfs-zed , so modules will not conflict:
sudo apt purge -y zfs-dkms zfs-zed zfsutils-linux 
sudo apt update -y
sudo apt upgrade -y

echo "NOW REBOOT, to both: fully remove zfs-dkms&zfs-zed AND take eventually latest kernel, you are now $(uname -r)"
sleep 100
#reboot # to take latest uname -r

#sudo apt install linux-generic -y
sudo apt install linux-image-$(uname -r) -y # --reinstall
sudo apt install linux-modules-$(uname -r) -y # --reinstall
sudo apt install linux-modules-extra-$(uname -r) -y # --reinstall

#sudo apt --autoremove --yes purge linux-generic linux-image-generic linux-headers-generic
sudo apt install -y linux-headers 


sudo apt install libncurses5-dev libffi-dev libtool -y #suggested by gemini

#sudo apt install build-essential autoconf automake libtool gawk alien fakeroot dkms libblkid-dev uuid-dev libudev-dev libssl-dev zlib1g-dev libaio-dev libattr1-dev libelf-dev linux-headers-generic python3 python3-dev python3-setuptools python3-cffi libffi-dev python3-packaging git libcurl4-openssl-dev debhelper-compat dh-python po-debconf python3-all-dev python3-sphinx parallel
#
sudo apt install -y build-essential autoconf automake libtool gawk alien fakeroot dkms libblkid-dev uuid-dev libudev-dev libssl-dev zlib1g-dev libaio-dev libattr1-dev libelf-dev python3 python3-dev python3-setuptools python3-cffi libffi-dev python3-packaging git libcurl4-openssl-dev debhelper-compat dh-python po-debconf python3-all-dev  parallel

#python3-sphinx samba
sudo apt install -y ksh bc bzip2 fio acl sysstat mdadm lsscsi parted attr dbench nfs-kernel-server  rng-tools pax linux-perf selinux-utils quota

git checkout zfs-2.2.4 
cd zfs
sh autogen.sh
./configure
make -s -j$(nproc)

sudo make install; sudo ldconfig; sudo depmod
sudo modprobe zfs
sudo make -C module/ install
sudo make -C modules/ install

echo "some kernel cleanup"
apt purge linux-headers-$(uname -r)-v6 linux-headers-$(uname -r)-v6* linux-image-$(uname -r)-v6* linux-headers-rpi-v6* linux-image-rpi-v6* -y
apt purge linux-headers-$(uname -r)-v8* linux-headers-$(uname -r)-v8* linux-image-$(uname -r)-v8* linux-headers-rpi-v8* linux-image-rpi-v8* -y
apt purge linux-headers-$(uname -r)-v7l* linux-headers-$(uname -r)-v7l* linux-image-$(uname -r)-v7l* linux-headers-rpi-v7l* linux-image-rpi-v7l* -y