Tizen OS Local Recovery Guide

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※ Caution : This guide is based on rpi4

Environment Setup

  1. Fusing image to rpi4
    • sudo ./sd_fusing.sh -d /dev/(sdX) --format
    • sudo ./sd_fusing.sh -d /dev/(sdX) -b tizen-unified...iot-boot...tar.gz
    • sudo ./sd_fusing.sh -d /dev/(sdX) -b tizen-unified...iot-headed...tar.gz
  2. Connect rpi4 to host computer
    • sdb devices
    • sdb root on
  3. Setup local recovery image
    1. Input recovery image to usb
      • Recovery image path : (usb home path)/tizen-recovery.img

Test Local Recovery client

※ Below test client is based on Tizen OS Local Recovery Client Guide. If you want to make own client, please refer guide.

  1. Install test client
    ※ Caution : you should reboot rpi4 after install test client
    • sdb install org.example.recovery-manager-client-1.0.0-arm.tpk
  2. Check that recovery-manager recognize recovery image in usb
    1. Plug and Unplug setup usb with recovery image to rpi4
    2. Check that test client is launched
      • Plugged event key : recovery-plug, value : (image path)
      • Unplugged event key : recovery-unplug, value : (usb home path)
      • e.g) Test client LOG_TAG : RECOVERY_MANAGER_CLIENT
root:~> dlogutil RECOVERY_MANAGER_CLIENT

I/RECOVERY_MANAGER_CLIENT( 1065): src/recovery-manager-client.c (30) service_app_control : App-control recovery-plug : /opt/media/USBDriveE1/tizen-recovery.img
I/RECOVERY_MANAGER_CLIENT( 1065): src/recovery-manager-client.c (30) service_app_control : App-control recovery-unplug : /opt/media/USBDriveE1
3. Trigger recovery
  1. Trigger recovery with client while usb plugged
    • sdb shell app_launcher org.example.recovery-manager-client recovery-trigger 0
  2. Trigger recovery without client (for test)
    • sdb root on
    • sdb shell reboot recovery
4. If recovery is successful, the output is shown below.
Starting kernel ...
[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd083]
[    0.000000] Linux version 5.4.50-arm64-rpi4-v8 (abuild@obsnw02) (gcc version 9.2.0 (Tizen GCC 9.20
[    0.000000] Machine model: Raspberry Pi 4 Model B
[    0.000000] earlycon: uart8250 at MMIO32 0x00000000fe215040 (options '')
[    0.000000] printk: bootconsole [uart8250] enabled
[    0.800352] spi-bcm2835 fe204000.spi: could not get clk: -517
[    1.743489] bcm2835-i2s fe203000.i2s: could not get clk: -517
[    1.770596] debugfs: Directory 'fef00700.hdmi' with parent 'vc4-hdmi' already present!
[    1.790787]  ac10x i2c_id number: 0
[    1.794337]  ac10x data protocol: 0
[    1.807874] ac10x-codec 1-003b: fail to write adc1 volume register
You entered into /sbin/init on initrd
Kernel command line: vc_mem.mem_base=0x3dc00000 vc_mem.mem_size=0x3f000000 8250.nr_uarts=1 dma.dmach4
BOOTMODE is recovery
Starting system recovery.
mount partitions
mount USB partitions
SR/INFO  Find mountpoint : /opt/media/USBDriveA1
SR/INFO  Find recovery image : /opt/media/USBDriveA1/tizen-recovery.img
SR/INFO  === Image list start ===
SR/INFO  Label(BOOT), Basename(boot.img), Devpath(/dev/mmcblk0p1)
SR/INFO  Image size : 67108864
SR/INFO  Label(rootfs), Basename(rootfs.img), Devpath(/dev/mmcblk0p2)
SR/INFO  Image size : 1386795008
SR/INFO  Label(system-data), Basename(system-data.img), Devpath(/dev/mmcblk0p3)
SR/INFO  Image size : 78954496
SR/INFO  Label(user), Basename(user.img), Devpath(/dev/mmcblk0p5)
SR/INFO  Image size : 113676288
SR/INFO  Label(modules), Basename(modules.img), Devpath(/dev/mmcblk0p6)
SR/INFO  Image size : 18362368
SR/INFO  Label(ramdisk), Basename(ramdisk.img), Devpath(/dev/mmcblk0p7)
SR/INFO  Image size : 8388608
SR/INFO  Label(ramdisk-recovery), Basename(ramdisk-recovery.img), Devpath(/dev/mmcblk0p8)
SR/INFO  Image size : 14981120
SR/INFO  === Image list end ===
SR/INFO  Total image size : 1688266752 bytes
SR/INFO  === Image writing start ===
SR/INFO  Label(BOOT), Imagepath(/tmp/recovery_image/boot.img), Devpath(/dev/mmcblk0p1)
SR/INFO  Progress : 1%
SR/INFO  Progress : 2%

...

SR/INFO  Progress : 96%
SR/INFO  Progress : 97%
SR/INFO  Label(modules), Imagepath(/tmp/recovery_image/modules.img), Devpath(/dev/mmcblk0p6)
SR/INFO  Progress : 98%
SR/INFO  Label(ramdisk), Imagepath(/tmp/recovery_image/ramdisk.img), Devpath(/dev/mmcblk0p7)
SR/INFO  Progress : 99%
SR/INFO  Label(ramdisk-recovery), Imagepath(/tmp/recovery_image/ramdisk-recovery.img), Devpath(/dev/)
SR/INFO  Progress : 100%
SR/INFO  === Image writing end ===
SR/INFO  Succeed in image recovery
umount partitions
umount USB partitions
/usr/bin/ls: cannot access /system/opt/media/USBDrive*: No such file or directory
umount: /system/opt: target is busy.
umount: /system: target is busy.
Reboot
Rebooting.
[   91.150702] reboot: Restarting system
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