Messages in this thread | | | Date | Thu, 26 Sep 2002 22:39:08 -0400 | From | "Michael D. Crawford" <> | Subject | cramfs: wrong magic when loading ramdisk from floppy |
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I'm trying to load a cramfs filesystem as a ramdisk from a floppy. After I am prompted to insert the floppy with the ramdisk image, and the kernel acknowledges that it found a compressed image, I get the message:
cramfs: wrong magic
and then the kernel panics.
What I am trying to do is to use a regular PC to estimate the amount of RAM and flash ROM an embedded project will require, so I'm loading a cramfs image from floppy that will be similar to the cramfs image that will be loaded into flash. I'm also booting a kernel with only enough options selected to boot and use the console, ramdisk, cramfs and floppy disk. It's otherwise a stock 2.4.19 kernel.
I added a line to fs/cramfs/inode.c to print out the magic that it's seeing, and it is 0xf6f6f6f6, which is not correct.
I'm using syslinux on a FAT floppy for my bootloader. The contents of syslinux.cfg are:
DEFAULT linux root=/dev/fd0 init=/bin/sh load_ramdisk=1 prompt_ramdisk=1
Thanks for any help you can give me.
Mike
-- Michael D. Crawford GoingWare Inc. - Expert Software Development and Consulting http://www.goingware.com/ crawford@goingware.com
Tilting at Windmills for a Better Tomorrow.
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