> Ramdisks cannot be mounted in place because the ramdisk implementation
keeps
> its contents in the file buffer cache. The initrd initializes a ramdisk
by
> copying (and possibly uncompressing) a filesystem image from a memory
region
> into the ramdisks buffers.
Ah. I guess it's slightly more memory efficient having it take the initrd
from flash directly than allocating some space, copying it to RAM, then
having it loaded into more memory in the buffer cache? Otherwise you'll have
2 copies, though one could quite possibly be thrown out after the mount.
This might have been what I was aiming for originally, it was a couple of
years ago now...
Hugo
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