# Mender not working in iMX6 UL

**URL:** <https://hub.mender.io/t/mender-not-working-in-imx6-ul/1940>\
**Category:** General Discussions\
**Tags:** yocto, nxp, warrior, imx6ul-evk\
**Created:** [May 19, 2020, 8:09am UTC](https://hub.mender.io/t/mender-not-working-in-imx6-ul/1940 "2020-05-19T08:09:09Z")\
**Posts on this page:** 1\
**Showing post:** 4

<div class="post-metadata">

**Author:** ![dellgreen](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/dellgreen/32/85_2.png) [@dellgreen](https://hub.mender.io/u/dellgreen)\
**Post date:** [May 19, 2020, 11:32am UTC](https://hub.mender.io/t/mender-not-working-in-imx6-ul/1940/4 "2020-05-19T11:32:08Z")

</div>

Looking back over a past project I had to add a yocto bbappend file to my uboot recipe which created the imx file manually. Below are the bitbake append functions i added

```
do_compile_append() {
    if [-n "${UBOOT_CONFIG}"]
    then
        unset i j
        for config in ${UBOOT_MACHINE}; do
            i=$(expr $i + 1);
            for type in ${UBOOT_CONFIG}; do
                j=$(expr $j + 1);
                if [$j -eq $i]
                then
                    dd if="${B}/${config}/SPL" of="${B}/${config}/u-boot-${type}.imx"
                    dd if="${B}/${config}/u-boot.img" of="${B}/${config}/u-boot-${type}.imx" obs=1K seek=68
                fi
            done
            unset j
        done
        unset i
    else
        dd if="${B}/SPL" of="${B}/u-boot.imx"
        dd if="${B}/u-boot.img" of="${B}/u-boot.imx" obs=1K seek=68
    fi

}

do_deploy_append () {
    if [-n "${UBOOT_CONFIG}"]
    then
        for config in ${UBOOT_MACHINE}; do
            i=$(expr $i + 1);
            for type in ${UBOOT_CONFIG}; do
                j=$(expr $j + 1);
                if [$j -eq $i]
                then
                    install -d ${DEPLOYDIR}
                    install -m 644 ${B}/${config}/u-boot-${type}.imx ${DEPLOYDIR}/u-boot-${type}-${PV}-${PR}.imx
                    cd ${DEPLOYDIR}
                    ln -sf u-boot-${type}-${PV}-${PR}.imx u-boot-${type}.imx
                    ln -sf u-boot-${type}-${PV}-${PR}.imx u-boot.imx
                fi
            done
            unset j
        done
        unset i
    else
        install -d ${DEPLOYDIR}
        install -m 644 ${B}/u-boot.imx ${DEPLOYDIR}/u-boot-${PV}-${PR}.imx
        cd ${DEPLOYDIR}
        rm -f u-boot*.imx
        ln -sf u-boot-${PV}-${PR}.imx u-boot.imx

   fi

}
```

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