Re: Nanobsd for RPI4

> On 16 Jan 2024, at 10:03, Guido Falsi <mad@madpilot.net> wrote:
> 
> On 16/01/24 09:52, Andrew Hankinson wrote:
>> Hello,
>> I saw a recent posting to this list about nanobsd for RPI3:
>> Re: Nanobsd builds for rpi3 out of embedded blow up during build <https://lists.freebsd.org/archives/freebsd-arm/2024-January/003509html>
>> lists.freebsd.org <https://lists.freebsd.org/archives/freebsd-arm/2024-January/003509.html>
>> favicon.ico <https://lists.freebsd.org/archives/freebsd-arm/2024-January/003509.html>
>> <https://lists.freebsdorg/archives/freebsd-arm/2024-January/003509.html>
>> I just wanted to chime in to say I am seeing the exact same thing for a RPI4 build with both 14.0 release and 15.0 current. I asked about it on the forums, but there didn’t seem to be any solution.
>> Has anyone here managed to get a nanobsd build working?
> 
> I am using nanobsd with RPi3. Never tried RPi4. I did some customization to the nanobsd scripts and configuration to get it working though.
> 
> Last time I rebuilt my image was in mid december. I'm going to build a new image in the next pair of weeks.
> 
> Is the problem limited to the boot code?

I haven't been able to get past the boot code bit, but up until this point it works OK. I've simply copied the RPI3.cfg file and changed a few variables.

My build stops with the following logs:

# cat /usr/embedded/rpi4/_.cust.dos_boot_part
+ dos_boot_part
+ local 'd=/usr/local/share/u-boot/u-boot-rpi4'
+ local 'f=/usr/embedded/rpi4/_.fat'
+ rm -rf /usr/embedded/rpi4/_.fat
+ mkdir /usr/embedded/rpi4/_.fat
+ chdir /usr/embedded/rpi4/_.fat
+ cp /usr/local/share/u-boot/u-boot-rpi4/README /usr/local/share/u-boot/u-boot-rpi4/metadata /usr/local/share/u-boot/u-boot-rpi4/u-boot.bin .
+ touch uEnv.txt
+ cp '/usr/embedded/rpi4/_.w/boot/dtb/*.dtb' .
cp: /usr/embedded/rpi4/_.w/boot/dtb/*.dtb: No such file or directory

This seems to be a problem with the dos_boot_part() function in /usr/src/tools/tools/nanobsd/embedded/common. 

Your code seems to bypass this and uses the rpi-firmware package .dtbo files. 

So I guess my questions are:

1. What changed that the .dtb files are no longer created in the regular build?
2. Should the dos_boot_part() function be changed to take the files from the rpi-firmware pkg instead?

Not being familiar with the nanobsd building process, I'm not really sure what is the best way to go.



> 
> I have this code to create that partition:
> 
> populate_boot_part ( ) (
>    MNT=$1
> 
>    UBOOT_DIR="/usr/local/share/u-boot/${NANO_BOOT_PKG}"
>    FIRMW_DIR="/usr/local/share/rpi-firmware"
>    FIRMO_DIR="${FIRMW_DIR}/overlays"
> 
>    # Required files
>    UBOOT_FILES="README u-boot.bin"
>    DTB="bcm2710-rpi-2-b.dtb bcm2710-rpi-3-b.dtb bcm2710-rpi-3-b-plus.dtb bcm2710-rpi-cm3.dtb bcm2711-rpi-4-b.dtb"
>    OVERLAYS="mmc.dtbo pwm.dtbo disable-bt.dtbo"
>    DTB_FILES="armstub8.bin armstub8-gic.bin bootcode.bin fixup_cd.dat \
>        fixup_db.dat fixup_x.dat fixup.dat LICENCE.broadcom \
>        start_cd.elf start_db.elf start_x.elf start.elf \
>        fixup4.dat fixup4cd.dat fixup4db.dat fixup4x.dat start4.elf \
>        start4cd.elf start4db.elf start4x.elf ${DTB}"
> 
>    for _F in ${UBOOT_FILES}; do
>        cp ${UBOOT_DIR}/${_F} ${MNT}/${_F}
>    done
>    for _F in ${DTB_FILES}; do
>        cp ${FIRMW_DIR}/${_F} ${MNT}/${_F}
>    done
>    cp -p ${FIRMW_DIR}/config_arm64.txt ${MNT}/config.txt
>    mkdir -p ${MNT}/overlays
>    for _F in ${OVERLAYS}; do
>        cp -p ${FIRMO_DIR}/${_F} ${MNT}/overlays/${_F}
>    done
> 
>    mkdir -p ${MNT}/EFI/BOOT
>    cp -p ${NANO_WORLDDIR}/boot/loader_lua.efi \
>        ${MNT}/EFI/BOOT/bootaa64.efi
> 
>    cp -R ${NANO_WORLDDIR}/boot/dtb ${MNT}
> 
>    # tell loader what partition to startup from
>    mkdir -p ${MNT}/EFI/freebsd
>    echo "rootdev=disk0s3a" >${MNT}/EFI/freebsd/loader.env
> )
> 
> Hope this helps.
> 
> -- 
> Guido Falsi <mad@madpilot.net>
>