In message <45530.61.95.208.2.1148300461.squirrel at 61.95.208.2> you wrote: > > I have a specific requirement to change the Magic number of the linux > kernel in my embedded system.
You are off track. > I cound see the Magic number is defined in U-boot files: > 1.include/image.h:#define IH_MAGIC 0x27051956 > 2.cpu/ppc4xx/start.S: .long 0x27051956 This magic number is only used by U-Boot, and ther e only in the image header. It has no relevance in any way to the LInu xkernel. > So i can modify in u-boot to make it compatible to my Kernel (i am using > montavista linux version 2.4.20), but i am not able to see this kindof > info anywhere in the kernel source files. You are looking at the wrong place. This magic number is not used or accessed anywhere in the Linu xkernel. > If anyone knows how the linux magic number is generated and what are the > files > need modifications inorder to change magic number please let me know. Linux itself has no such magic number. Especially not on PPC. [But if you find a way to change that magic number, I would not protest if you added 10 or 20 to the last 4 digits. Just make sure the change is propagated back to it's origin. :-) ] Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de The easiest way to figure the cost of living is to take your income and add ten percent.
