Jetson Nano上的Rauc和Yocto -找不到主启动插槽

Question

这是my other post的延续。

我已经设法用u-boot和rauce创建了一个镜像。

我做了一个简单的rauc system.conf：

[system]
compatible=Jetson Nano
bootloader=uboot 
#
[slot.rootfs.0]
device=/dev/mmcblk0p1
type=ext4
bootname=system0
# 
[slot.rootfs.1]
device=/dev/mmcblk0p13
type=ext4
bootname=system1

已更新

几乎所有的拷贝都粘贴了contrib uboot.sh script。

然后我已经添加了一个bb文件from here到我的bsp层。

并将rauc添加到我的IMAGE_INSTALL中。

当我用我的镜像启动nano时，rauc不能正常工作。当我用systemctl status rauc-mark-service-good.service检查服务的状态时，它返回：

● rauc-mark-good.service - Rauc Good-marking Service
   Loaded: loaded (/lib/systemd/system/rauc-mark-good.service; enabled; vendor preset: enabled)
   Active: inactive (dead) since Tue 2019-10-01 07:51:22 UTC; 4s ago
  Process: 4147 ExecStart=/usr/bin/rauc status mark-good (code=exited, status=0/SUCCESS)
 Main PID: 4147 (code=exited, status=0/SUCCESS)

Oct 01 07:51:22 jetson-nano systemd[1]: Started Rauc Good-marking Service.
Oct 01 07:51:22 jetson-nano rauc[4147]: Failed getting primary slot: Failed getting primary slot: Unable to find primary boot slot
Oct 01 07:51:22 jetson-nano rauc[4147]: rauc mark: marked slot rootfs.0 as good
Oct 01 07:51:22 jetson-nano systemd[1]: rauc-mark-good.service: Succeeded.

systemctl status rauc返回：

● rauc.service - Rauc Update Service
   Loaded: loaded (/lib/systemd/system/rauc.service; static; vendor preset: enabled)
   Active: active (running) since Tue 2019-10-01 07:49:36 UTC; 2min 0s ago
     Docs: https://rauc.readthedocs.io
 Main PID: 4092 (rauc)
    Tasks: 3 (limit: 4178)
   Memory: 4.4M
   CGroup: /system.slice/rauc.service
           └─4092 /usr/bin/rauc --mount=/run/rauc service

Oct 01 07:49:36 jetson-nano systemd[1]: Starting Rauc Update Service...
Oct 01 07:49:36 jetson-nano systemd[1]: Started Rauc Update Service.
Oct 01 07:49:48 jetson-nano rauc[4092]: Failed getting primary slot: Failed getting primary slot: Unable to find primary boot slot
Oct 01 07:49:48 jetson-nano rauc[4092]: Failed to load status file /slot.raucs: No such file or directory
Oct 01 07:49:48 jetson-nano rauc[4092]: mounting slot /dev/mmcblk0p13
Oct 01 07:49:48 jetson-nano rauc[4092]: Failed to load status file /run/rauc/rootfs.1/slot.raucs: No such file or directory
Oct 01 07:51:22 jetson-nano rauc[4092]: Failed getting primary slot: Failed getting primary slot: Unable to find primary boot slot
Oct 01 07:51:22 jetson-nano rauc[4092]: rauc mark: marked slot rootfs.0 as good

然后rauc status返回：

(rauc:4195): rauc-WARNING **: 07:51:46.126: Failed getting primary slot: Failed getting primary slot: Unable to find primary boot slot

Compatible:  Jetson Nano
Variant:
Booted from: rootfs.0 (/dev/mmcblk0p1)
Activated:   (null) ((null))
slot states:
  rootfs.0: class=rootfs, device=/dev/mmcblk0p1, type=ext4, bootname=system0
      state=booted, description=, parent=(none), mountpoint=/
      boot status=bad
  rootfs.1: class=rootfs, device=/dev/mmcblk0p13, type=ext4, bootname=system1
      state=inactive, description=, parent=(none), mountpoint=(none)
      boot status=bad

因此没有/slot.raucs文件，并且找不到主引导插槽。

在此之后，systemctl status rauc-mark-good返回rootfs.0插槽最终被标记为良好，但systemctl status rauc显示引导状态为坏。

这里我漏掉了什么？

Answer 1

我将uboot脚本编辑为以下内容：

test -n "${BOOT_ORDER}" || setenv BOOT_ORDER "system0 system1"
test -n "${BOOT_system0_LEFT}" || setenv BOOT_system0_LEFT 3
test -n "${BOOT_system1_LEFT}" || setenv BOOT_system1_LEFT 3

setenv bootargs
for BOOT_SLOT in "${BOOT_ORDER}"; do
  if test "x${bootargs}" != "x"; then
    # skip remaining slots
  elif test "x${BOOT_SLOT}" = "xsystem0"; then
    if test ${BOOT_system0_LEFT} -gt 0; then
      setexpr BOOT_system0_LEFT ${BOOT_system0_LEFT} - 1
      echo "Found valid slot system0, ${BOOT_system0_LEFT} attempts remaining"
      setenv distro_bootpart "1"
      setenv boot_line "mmc 1:1 any ${scriptaddr} /boot/extlinux/extlinux.conf"
    fi
  elif test "x${BOOT_SLOT}" = "xsystem1"; then
    if test ${BOOT_system1_LEFT} -gt 0; then
      setexpr BOOT_system1_LEFT ${BOOT_system1_LEFT} - 1
      echo "Found valid slot system1, ${BOOT_system1_LEFT} attempts remaining"
      setenv distro_bootpart "13"
      setenv boot_line "mmc 1:D any ${scriptaddr} /boot/extlinux/extlinux.conf"
    fi
  fi
done

if test -n "${bootargs}"; then
  saveenv
else
  echo "No valid slot found, resetting tries to 3"
  setenv BOOT_system0_LEFT 3
  setenv BOOT_system1_LEFT 3
  saveenv
  reset
fi

sysboot ${boot_line}

它最终成功了。显然，uboot脚本中的BOOT_ORDER "system0 system1"存在一些问题，这些问题与RAUC system.conf中的不同。当我重写脚本时，没有任何问题，RAUC运行得很好。