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4c3f8d2063
The iso and hddimg share a common concept of 'live image', and they use the same initramfs and thus the same init. However, that init script in initramfs made a wrong assumption that the rootfs image was read-only by itself. This is apparently not true for hddimg. To make things work as expected, this init script should at least distinguish between a read-only rootfs image and a read-write one. This patch adds this ability to the init script. After this change, the init script would be able to check whether the rootfs image is read-only or not. If the rootfs image is read-write, the image will be mounted and then booted directly. No union mounts will be attempted in this case. [YOCTO #5164] (From OE-Core rev: 29f869b68a9017502f75915784a924f0fe9d4be1) Signed-off-by: Chen Qi <Qi.Chen@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>