Thank you @mirzak for your reply.
I’m using sources/meta-mender/meta-mender-core/recipes-mender/mender/mender_2.0.0.bb with SRC_URI = "git://github.com/mendersoftware/mender;protocol=https;branch=2.0.x". Even I don’t know why the dirty is coming at the end of the 2.0.0 version! Is there any reason for it?
Regarding the permission, I’m using a read-only file system and only one client is running on the target platform. Whether it will work on a read-only file system? 