Copy kernel and modules to SSH or local SD/MMC target

target_copy.sh

#!/usr/bin/env sh

# settings
DEVICE=sdj
IP=192.168.0.2

##########################################################

function main(){
    # if we have an IP, check if target is there
    # otherwise copy local
    if [[ -n $IP ]]
    then
        ping -c1 -W2 $IP >/dev/null
        [[ $? == 0 ]] && copy_scp || copy_local
        exit 0
    else
        [[ -n $DEVICE ]] && copy_local
        exit 0
    fi
}

function copy_local() {
    RET=1
    local BOOTPART="1"
    local LINUXPART="2"

    # check for device
    mkdir -p ./mount
    echo -n "wait for device "

    # set partition names for sdXY and mmcblkXpY
    if [[ ${1:0:2} == "sd" ]]
    then
        local PART1="${1}${BOOTPART}"
        local PART2="${1}${LINUXPART}"
    else
        local PART1="${1}p${BOOTPART}"
        local PART2="${1}p${LINUXPART}"
    fi

    # wait for device
    while true
    do
        if [[ -b /dev/${PART1} ]]
        then
            echo -en "\n"
            break
        else
            echo -n "."
            sleep 0.5
        fi
    done

    # copy kernel
    sudo mount -v /dev/${PART1} ./mount
    sudo cp -v linux.fit ./mount/
    sudo umount -v ./mount

    # copy modules
    export INSTALL_MOD_PATH="./mount"
    sudo mount -v /dev/${PART2} ./mount
    echo "install modules and firmware ..."
    sudo -E make --silent modules_install firmware_install
    sudo umount -v ./mount
    RET=0
}

function copy_scp() {
    RET=1
    local SSH="root@$IP"
    scp linux.fit $SSH:/boot/

    local VERSION=$(strings vmlinux | grep "Linux version" | cut -d' ' -f3)
    export INSTALL_MOD_PATH="./modules_tmp"
    mkdir -p $INSTALL_MOD_PATH
    rm -f $INSTALL_MOD_PATH/* 2&> /dev/null
    echo "modules and firmware ..."
    echo "  make install"
    make --silent modules_install firmware_install
    ssh $SSH "rm -R /usr/lib/modules/$VERSION"
    echo "  copy modules to target"
    rsync -rl --safe-links modules_tmp/lib/modules/$VERSION $SSH:/lib/modules/
    echo "  copy firmware to target"
    rsync -rl --safe-links modules_tmp/lib/firmware/* $SSH:/lib/firmware/
    RET=0
}

main $@
[[ $RET == 0 ]] && echo "FINISHED" || echo "ERROR OCCURRED"