post_install() {
    check_initramfs
}

post_upgrade() {
    check_initramfs
}

check_initramfs() {    
    echo " >>>  To build the module for the current kernel use this command:
        # dkms install zfs/0.6.4.2 -k _KERNEL_VERSION_HERE_
      or just boot to kernel you want to build and do
        # dkms install zfs/0.6.4.2 -k \$(uname -r)

 >>>  Always remember to install kernel headers!
"
}