Custom initrd using busybox

[Luciano Miguel Ferreira Rocha]

On Sun, Nov 05, 2006 at 06:43:52PM -0500, Rob Landley wrote:
> On Sunday 05 November 2006 6:34 pm, Luciano Miguel Ferreira Rocha wrote:
> > On Sun, Nov 05, 2006 at 03:19:40PM -0500, Rob Landley wrote:
> > > > - Documentation/filesystems/ramfs-rootfs-initramfs.txt
> > > 
> > > I wrote that one.  If it's missing something, let me know.
> > 
> > Information about the rdinit parameter would be nice. :)
> 
> I think the current version (2.6.18 and up) mentions it?

Yes, the git version has it. It also has a typo:
"the kernel's built-in initamfs image."

> There are patches floating around to make it tmpfs if you have tmpfs built 
> into the kernel.  I keep thinking they've been integrated.  (This is the 
> point of tmpfs.)

They'll be very welcome.

> > I made a /init that extracts cpios (gziped and bziped) in / to a tmpfs,
> > moves all remaining files to the tmpfs, and executes the new init, if
> > anyone is interested.
> 
> The proper thing to do is patch the kernel so initramfs is a tmpfs.

The program checks if / is already a tmpfs and only extracts the cpios
then. I don't always have control over the kernel used, so I can't force
the patch or option, and will keep using the program.

Thanks for the pointers anyway.

-- 
lfr
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