July 16, 2021
3:41 p.m.
On Fri, Jul 16, 2021 at 12:12:41PM +0530, Pintu Agarwal wrote:
Hi,
Our ARM32 Linux embedded system consists of these: * Linux Kernel: 4.14 * Processor: Qualcomm Arm32 Cortex-A7 * Storage: NAND 512MB * Platform: Simple busybox * Filesystem: UBIFS, Squashfs * Consists of nand raw partitions, squashfs ubi volumes.
My requirement: To find the checksum of a real image in runtime which is flashed in an MTD partition.
Try using the dm-verity module for ensuring that a block device really is properly signed before mounting it. That's what it was designed for and is independent of the block device type. good luck! greg k-h