Using compressed memdisk

[Glenn Washburn]

Hola,

I'm trying to get grub to read an xz-compressed memdisk, but grub does
not automatically decode it.  Apparently there is a transparent file
decompressor for xz, but that won't work on devices.

What would be a better way to implement this: some sort of device
filter, or something specific to mkimage that compresses the memdisk
when -C is used?

Cheers