Hello,

I am currently using kernel 2.4.0-rmk2 and a ramdisk on my SA-1110 system.
This system has 8MB of memory, and I would like to use a cramfs image
instead of the ramdisk to use the limited memory most efficiently. At this
point, I am using BLOB as the bootloader, and I download the kernel and the
ramdisk over the serial port into a fixed place in memory using BLOB, and
then I have BLOB boot the kernel, which then "finds" the ramdisk. I have
been told that I can boot using a cramfs image the same way, except that the
kernel needs to know that it is booting a cramfs filesystem, instead of a
mke2fs filesystem. As it is, I receive the rather interesting message:

wrong magic

at which point the kernel panics. Does anyone know where in the kernel tree
that I might be able tell the kernel to expect a cramfs image instead of a
ramdisk? Of course, I have compiled cramfs support into the kernel. I
realize that cramfs is normally run out of ROM, and not from RAM, but it
seems like it should be possible. I have not been able to find much
documentation, and any help would be greatly appreciated. Thanks!

-Joe Edwards


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