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BOARD_PREBUILT_BOOTIMAGE: removes the restriction of non system-as-root

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Starting from Android 10, the system.img layout consists of
$TARGET_SYSTEM_OUT and $TARGET_ROOT_OUT, and is mounted by the
init as root. That is, system.img is always created as if
BOARD_BUILD_SYSTEM_ROOT_IMAGE was set.

  https://source.android.com/devices/bootloader/partitions/system-as-root

The previous concern is that there might be compatibility issues between
the ramdisk contained in boot.img with a newer system.img. But this is
no longer an issue after we always mount the system.img as root.

Bug: 187157581
Test: Tree Hugger
Change-Id: I4537e6ce6fb39b4b86caac82a13716abf515ffd6
Merged-In: I4537e6ce6fb39b4b86caac82a13716abf515ffd6
(cherry picked from commit 640544bd96)
This commit is contained in:
Bowgo Tsai
2021-05-14 17:55:32 +08:00
parent 460ce77c30
commit b9af035ee7
1 changed files with 0 additions and 4 deletions
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4
core/Makefile
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@@ -1034,10 +1034,6 @@ endif # BUILDING_BOOT_IMAGE
else # TARGET_NO_KERNEL == "true"
ifdef BOARD_PREBUILT_BOOTIMAGE
ifneq ($(BOARD_BUILD_SYSTEM_ROOT_IMAGE),true)
# Remove when b/63676296 is resolved.
$(error Prebuilt bootimage is only supported for AB targets)
endif
INTERNAL_PREBUILT_BOOTIMAGE := $(BOARD_PREBUILT_BOOTIMAGE)
INSTALLED_BOOTIMAGE_TARGET := $(PRODUCT_OUT)/boot.img
$(eval $(call copy-one-file,$(INTERNAL_PREBUILT_BOOTIMAGE),$(INSTALLED_BOOTIMAGE_TARGET)))