ac8257 android 9 lk upgrade升级后分区表错误问题

问题描述

ac8257 Android 9，使用lk upgrade升级功能升级固件，当分区表发生变化时，分区表会出现以下问题：

1、备份分区表错误

2、分区表存在重叠

验证方法

lk upgrade升级后，用sgdisk命令检测分区表是否存在错误。

sgdisk

--verify

# sgdisk --verify /dev/block/mmcblk0
Warning! Main and backup partition tables differ! Use the 'c' and 'e' options
on the recovery & transformation menu to examine the two tables.

Warning! One or more CRCs don't match. You should repair the disk!
Main header: OK
Backup header: OK
Main partition table: OK
Backup partition table: ERROR

****************************************************************************
Caution: Found protective or hybrid MBR and corrupt GPT. Using GPT, but disk
verification and recovery are STRONGLY recommended.
****************************************************************************
Warning! Main partition table overlaps the first partition by 960 blocks!
Try reducing the partition table size by 3840 entries.
(Use the 's' item on the experts' menu.)

Warning! Secondary partition table overlaps the last partition by
1 blocks!
Try reducing the partition table size by 4 entries.
(Use the 's' item on the experts' menu.)

Caution: The CRC for the backup partition table is invalid. This table may
be corrupt. This program will automatically create a new backup partition
table when you save your partitions.

Problem: main GPT header's size of partition entries (128) doesn't
match the backup GPT header's size of partition entries (0)
You should use the 'b' or 'd' option on the recovery & transformation menu to
select one or the other header.

Warning: There is a gap between the main partition table (ending sector 33)
and the first usable sector (1024). This is helpful in some exotic configurations,
but is unusual. The util-linux fdisk program often creates disks like this.
Using 'j' on the experts' menu can adjust this gap.
Warning! Main partition table overlaps the first partition by 960 blocks!
Try reducing the partition table size by 3840 entries.
(Use the 's' item on the experts' menu.)

Warning! Secondary partition table overlaps the last partition by
1 blocks!
Try reducing the partition table size by 4 entries.
(Use the 's' item on the experts' menu.)

Identified 4 problems!

--print

# sgdisk --print /dev/block/mmcblk0
Warning! Main and backup partition tables differ! Use the 'c' and 'e' options
on the recovery & transformation menu to examine the two tables.

Warning! One or more CRCs don't match. You should repair the disk!
Main header