Documentation for creating a ubi image for an i.MX233

[myke_predko]

Hi Friends,

This was originally in the main page but I felt it would be better to make it specific to the device I'm working with. 

I'm working through bringing up an i.MX233 EVK - I have been successful with bringing the EVK up with an SD Card, but I would like to be able to burn the NAND Flash (the built in ethernet port will not work with an SD Card in place). 

My plan is to boot with an SD Card and, from it, burn the kernel rootfs images from the SD Card as described in the i.MX LInux BSP User's Guide but for the life of me, I can't find a description how to create a .ubi file. 

Could anybody point me in the right direction?

Thanx,

myke

[myke_predko]

Hi,

After some research, I have my answer, UBI is a file system type, like JFFS2 or YAFFS2 but seems to be the best for Flash file systems. 

As is described in the attached presentations, you create UBI volumes and copy your rootfs into it. 

For people who are experts in UBI, could you please explain the use of the "data" volume?  Is it necessary to include it in your system (or can you just work with the "rootfs0" volume)?

Thanx,

myke