sunxi sysupgrade was based on the x86 implementation; sync fixes and other
changes from the current x86 version:
x86: fix sysupgrades on disks with 4k block size
x86: sysupgrade: move partition table change check to platform_check_image
x86: sysupgrade: refactor platform_do_upgrade
x86: sysupgrade: explicitly rescan disk after writing partition table
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
When existing partitions are retained, the dd call writing the uboot image
in the space before the first partition was accidentally writing the whole
image, making the code for individual partitions redundant. Limit the copy
to 1016KiB (the first 8KiB are skipped, and the first partition starts at
1024KiB).
In addition, conv=notrunc is replaced with conv=fsync. It seems this was an
oversight, as notrunc doesn't make sense for block devices and all other dd
commands use conv=fsync.
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Enalbe builtin support for FAT filesystem as we need to mount boot
partition to store sysupgrade.tgz there
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
