Hello I have a Mini2440 and got the basics working with the kernel, filesystem etc. Now next step, I got a .bin image file from a friend that he used on his board. I know I can pass this image to the FriendlyARM board through dnw.exe but what I want to do is get the filesystem from this image and extract it on my computer. Does anyone know if it is possible to do this?
Is it really a uImage or a zImage? If it is a uImage go here: Shell script to mount/unmount JFFS2 using kernel memory emulating MTD at this place: http://code.google.com/p/friendlyarm/wiki/Linux_Tutorial I am sure a zImage could be mounted in a similar way, just never tried.
JFFS2 is a filesystem you can mount, but a "zImage" is only the abbreviation for a regular Linux kernel image compressed with zlib.
Oops I really meant to say is it a JFFS2 or YAFFS2 filesystem? I am sure that a YAFFS2 filesystem could be ...
On linux, there is a program called 'file', at the command prompt do: file theimage.bin Obviously change theimage.bin name to whatever the name of your bin file actually is, hopefully it will give you some information about the makeup of the file. If it's a file that can be mounted directly then you will see information returned by the 'file' program indicating whether the file is split up, with start sectors and partition information, such as the partition type. if it's got mountable stuff in it you should then be able to use a program like kpartx to attach the image file to a loop device, something like: sudo kpartx -a theimage.bin will add all of the mountable image to a loop device (usually loop0) it will also mount the partitions to block loop devices, which you should be able to find under /dev/mapper/loop0p1 etc. or something similar. Once its done that you should be able to use the normal mount commands to mount the image partitions and then examine their contents just like you would with any other linux file system.
There are also a set of mktools around somewhere (probably on the dvd image for your board) that will do un-yaffing too.
you should also be able to emulate nand on a linux pc, from there you might get lucky enough to be able to 'flash' the image to your virtual nand device and mount it that way.