I have rebuilt the system.img using make_ext4fs.exe. I then successfully wrote it to an i.MX53 board using the latest MfgTool posted on this site. Now the board will not boot! The device displays a logo for about 10 seconds, then reboots in a loop. It is exactly like this report regarding an i.MX6: https://community.freescale.com/message/366405#comment-366405
I suspect it is not able to mount /system. If I revert back to the prior system.img, there is no problem. It seems like that file is built wrong, or is missing something, but I can't figure out what it is after days of tearing my hair out.
Supposedly "This problem is solved by using the latest BSP jb4.2.2_1.1.0 version." for the MX6. How about the MX53? Please help! I need this resolved asap.