On Case 2, I am trying to mount the system.img. typing "sudo mount -o loop system.img.ext4 temp" only results in "you must specify the filesystem type".
Yeah, nevermind. The mkuserimg.sh has issues, needs work. Line 58 needs to be edited from "MAKE_EXT4FS" to "make_ext4fs" otherwise, it will return command not found. It also never actually builds the resulting image. No system.img.ext4 is ever found anywhere after running the script. Just still left with the original that you started with, with no changes. In addition, some image files with the ext4 extension ARE NOT IN EXT4 FORMAT. You still must rename to remove the ext4 extension, and sim2img in order to mount. Still, all pointless since the mkuserimg.sh is partially fragged. If you attempt to run "Case 2" one some system.img.ext4 images, you will fail. "Sudo mount -o loop system.img.ext4 temp" will result in no more than "you must specify the filesystem type"
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