[klibc] initramfs scripts and other stuff

[H. Peter Anvin]

Russell King wrote:
> Hi,
> 
> The attached patch is an update to the latest klibc (I just checked a
> few bits into CVS) which adds support for initramfs.  Since it contains
> bits that aren't available yet on the main site, I've also put a tarball
> up which contains only what's in the latest CVS.
> 
> The initramfs stuff is what I use here to boot one of my machines; it
> works for me, but probably won't work without modification for you.
> 
> What functionality does this give you:
> 
> - mount local filesystems
> - identify and ungzip/copy a "ramdisk image" like we used to with initrd
> - setup networking via DHCP
> 
> It would be nice to be able to mount NFS images; there is code around
> for doing this (I believe Al Viro ripped some code from the kernel.)
> 
> There are a couple of extra targets:
> 
>  make initramfs - lays out the initramfs in $(KLIBC)/initramfs
>  make initramfs.cpio - creates a CPIO archive of the above
> 
> My test environment currently creates an ext2fs image from the initramfs
> layout, and passes this to the kernel as an initrd.  It should work as
> a proper initramfs (as long as your kernel has the initramfs patches
> applied.)
> 
> You can find the tarball + patch (you need both) at:
> 
> 	http://ftp.linux.org.uk/pub/linux/rmk/klibc/
> 

I made a 0.69 today after your latest checkins.  I will look at the 
patch tomorrow.

	-hpa