[U-Boot] [PATCH V2] add README.distro file

[Tom Rini]

On Sun, Jan 11, 2015 at 10:54:03AM -0700, Stephen Warren wrote:
> On 01/11/2015 02:45 AM, Ian Campbell wrote:
> > On Sun, 2014-12-28 at 09:26 +0000, Ian Campbell wrote:
> >>> +boot_scripts:
> >>> +
> >>> +  The name of U-Boot style boot.scr files that $bootcmd searches for.
> >>> +
> >>> +  Example: boot.scr.uimg boot.scr
> >>> +
> >>> +  (Typically we expect extlinux.conf to be used, but execution of boot.scr is
> >>> +  maintained for backwards-compatibility.)
> >>
> >> I'm slightly concerned by the implied deprecation of the boot.scr method
> >> here, since at least Debian uses boot.scr exclusively and not the
> >> extlinux stuff. Will boot.scr be maintained going forward or are there
> >> plans to eventually remove it?
> > 
> > Can someone confirm that there is no long term plan to drop boot.scr
> > support?
> 
> extlinux.conf *is* the standard Linux boot process that
> config_distro_bootcmd.h enables. boot.scr is *not*. The whole point is
> to introduce a new simple standard that works the same everywhere (for
> Linux: across boards, across distros, across bootloaders).

Well, the only problem I see with this statement is that, uh, do we have
buy-in from Debian?

> I would expect boot.scr support to be maintained indefinitely for any
> board the currently supports it. I certainly know of no plan to remove
> any existing support for it, and am not going to make such a plan.

"boot.scr" is just a "boot script" with the appropriate legacy image
header on it.  That won't go away until U-Boot no longer supports legacy
images, and there is currently no plan to actually drop that support.

-- 
Tom
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