Qualcomm R版本切换slot和OTA升级失败KBA

最新推荐文章于 2025-10-05 17:05:57 发布

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最新推荐文章于 2025-10-05 17:05:57 发布 · 1.8k 阅读

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在Android R新的高通平台，默认开启虚拟A/B，若设备未刷入slot B分区镜像，切换slot启动会失败。此时做OTA升级需构建包含所有slot B分区镜像的全量包。文档介绍了构建方法，包括修改配置文件、复制镜像、重命名镜像及构建验证等步骤。

From Android R, especially new QCOM platforms, virtual A/B has been enabled by default, if your devices have not flashed slot B partitions images, when you switch slot to boot up, it will fail. In this situation, if you want to do OTA update, you should build a full OTA package which must includes all slot B partition images. This document will tell you how to build such images into OTA package, and we have verified it based on sm8350 Android R build. It can update successfully and boot up successfully with following steps:

大概意思是在R版本上，尤其是新的高通平台默认开启了虚拟A/B，如果device没有刷入slot B，当切换slot启动时就会fail，如果要做OTA升级，就需要全编译OTA包而且必须包含所有slot B的分区镜像.

1. Change file device/qcom/lahaina/BoardConfig.mk；

--- a/BoardConfig.mk

+++ b/BoardConfig.mk

@@ -58,7 +58,7 @@ BOARD_RECOVERYIMAGE_PARTITION_SIZE := 0x06400000

TARGET_COPY_OUT_ODM := odm

BOARD_ODMIMAGE_FILE_SYSTEM_TYPE := ext4

ifeq ($(ENABLE_AB), true)

-AB_OTA_P