To align with the official Android BCB (Boot Control Block) specifications, it's important to note that the slot_suffix should start with an underscore symbol.
For a comprehensive understanding of the expected slot_suffix format in userspace, please refer to the provided reference [1].
Links: [1] - https://source.android.com/docs/core/architecture/bootloader/updating#slots
Signed-off-by: Dmitry Rokosov ddrokosov@salutedevices.com --- boot/android_ab.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/boot/android_ab.c b/boot/android_ab.c index 359cc1a00428..45c154b10f1a 100644 --- a/boot/android_ab.c +++ b/boot/android_ab.c @@ -53,7 +53,7 @@ static int ab_control_default(struct bootloader_control *abc) if (!abc) return -EFAULT;
- memcpy(abc->slot_suffix, "a\0\0\0", 4); + memcpy(abc->slot_suffix, "_a\0\0", 4); abc->magic = BOOT_CTRL_MAGIC; abc->version = BOOT_CTRL_VERSION; abc->nb_slot = NUM_SLOTS; @@ -319,7 +319,8 @@ int ab_select_slot(struct blk_desc *dev_desc, struct disk_partition *part_info, * or the device tree. */ memset(slot_suffix, 0, sizeof(slot_suffix)); - slot_suffix[0] = BOOT_SLOT_NAME(slot); + slot_suffix[0] = '_'; + slot_suffix[1] = BOOT_SLOT_NAME(slot); if (memcmp(abc->slot_suffix, slot_suffix, sizeof(slot_suffix))) { memcpy(abc->slot_suffix, slot_suffix,