JetsonにYoctoでRAUCを実装してみた。結果は、現状上手くいっていない状況。。。

忘れない為に、作業を記録しておく。

①下記のコマンドを実行して、RAUCをダウンロードする。

$ git clone -b ${BRANCH} https://github.com/rauc/meta-rauc.git

②poky/build/conf/*.confを編集する。

┗bblayers.confの編集

# POKY_BBLAYERS_CONF_VERSION is increased each time build/conf/bblayers.conf
# changes incompatibly
POKY_BBLAYERS_CONF_VERSION = "2"

BBPATH = "${TOPDIR}"
BBFILES ?= ""

BBLAYERS ?= " \
  /home/user33/yocto-tegra/meta-rauc \
  /home/user33/yocto-tegra/meta-tegra \
  /home/user33/yocto-tegra/poky/meta \
  /home/user33/yocto-tegra/poky/meta-poky \
  /home/user33/yocto-tegra/poky/meta-yocto-bsp \
  "

┗local.confの編集（※下記を追記した。）

#######################################<<RAUC>>
DISTRO_FEATURES:append = " systemd"
VIRTUAL-RUNTIME_init_manager = "systemd"
DISTRO_FEATURES_BACKFILL_CONSIDERED = "sysvinit"
VIRTUAL-RUNTIME_initscripts = ""

INIT_MANAGER = "systemd"

IMAGE_INSTALL:append = " rauc"
IMAGE_FSTYPES:append = " ext4"
DISTRO_FEATURES:append = " rauc"

③RAUCのsystem.confを編集する。

[system]
compatible=jetson-nano
bootloader=uboot

[keyring]
path=/etc/rauc/ca.cert.pem
 
[slot.rootfs.0]
device=/dev/mmcblk0p1
type=ext4
bootname=system0

[slot.rootfs.1]
device=/dev/mmcblk0p2
type=ext4
bootname=system1

④SDブートしてログを取得した。

$ rauc status

=== System Info ===
Compatible:  jetson-nano
Variant:     
Booted from: rootfs.0 (/dev/mmcblk0p1)

=== Bootloader ===
Activated: (null) ((null))

=== Slot States ===
o [rootfs.1] (/dev/mmcblk0p2, ext4, inactive)
    bootname: system1
    boot status: bad

o [rootfs.0] (/dev/mmcblk0p1, ext4, booted)
    bootname: system0
    mounted: /
    boot status: bad

$ systemctl status rauc

● rauc.service - RAUC Update Service
     Loaded: loaded (/lib/systemd/system/rauc.service; static; vendor preset: enabled)
     Active: active (running) since Mon 2024-01-08 08:30:47 UTC; 7min ago
       Docs: https://rauc.readthedocs.io
   Main PID: 3346 (rauc)
      Tasks: 3 (limit: 4174)
     Memory: 2.6M
     CGroup: /system.slice/rauc.service
             └─3346 /usr/bin/rauc --mount=/run/rauc service

Jan 08 08:30:47 jetson-nano-devkit rauc[3346]: Using per-slot statusfile
Jan 08 08:30:47 jetson-nano-devkit rauc[3346]: Config option 'statusfile=<path>/per-slot' unset, falling back to per-slot status
Jan 08 08:30:47 jetson-nano-devkit rauc[3346]: Using per-slot statusfile
Jan 08 08:30:47 jetson-nano-devkit systemd[1]: Started RAUC Update Service.
Jan 08 08:30:47 jetson-nano-devkit rauc[3346]: Failed getting primary slot: uboot backend: Unable to find primary boot slot
Jan 08 08:30:47 jetson-nano-devkit rauc[3346]: mounting slot /dev/mmcblk0p2
Jan 08 08:30:47 jetson-nano-devkit rauc[3346]: Failed to mount slot /dev/mmcblk0p2: Slot device '/dev/mmcblk0p2' not found
Jan 08 08:30:47 jetson-nano-devkit rauc[3346]: Failed to load status file /slot.raucs: No such file or directory
Jan 08 08:36:05 jetson-nano-devkit rauc[3346]: Failed getting primary slot: uboot backend: Unable to find primary boot slot
Jan 08 08:37:08 jetson-nano-devkit rauc[3346]: Failed getting primary slot: uboot backend: Unable to find primary boot slot

⓹パーティーションはsystem0/system1の両面で来ているが、boot statusがbadの状態。。。

⓺追記として、下記も利用してみたがうまくいかなかった状況。。。

git clone -b ${BRANCH} https://github.com/rauc/meta-rauc-community.git 

⑦気が向いたときに再度、RAUCの実装作業をしてみる。