CombiningKernelAndRamdisk < DULG

%SECTION0{name=CombiningKernelAndRamdisk}% Combining a Kernel and a Ramdisk into a Multi-File Image

   Question:: I used to build a =zImage.initrd= file which
    combined the Linux kernel with a ramdisk image. Can I do something
    similar with U-Boot?

   Answer:: Yes, you can create "Multi-File Images" which contain several images,
    typically an OS (Linux) kernel image and one or more data images like
    RAMDisks. This construct is useful for instance when you want to boot
    over the network using BOOTP etc., where the boot server provides
    just a single image file, but you want to get for instance an OS
    kernel and a RAMDisk image.
    <br>                                                                            
    The typical way to build such an image is:
    <verbatim>
bash$ mkimage -A ppc -O Linux -T multi -C gzip \
-n 'Linux Multiboot-Image' -e 0 -a 0 \
-d vmlinux.gz:ramdisk_image.gz pMulti
    </verbatim>                                                                            
    See also the usage message you get when you call ="mkimage"= without
    arguments.

14.3.18. Ramdisk Greater than 4 MB Causes Problems		1. Abstract		14.3.20. Adding Files to Ramdisk is Non Persistent
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