Date: Wed, 28 Feb 2007 09:41:55 -0700 (MST) From: "M. Warner Losh" <imp@bsdimp.com> To: sam@errno.com Cc: freebsd-arm@freebsd.org Subject: Re: redboot based boot loader for kernels? Message-ID: <20070228.094155.660269855.imp@bsdimp.com> In-Reply-To: <45E5A73E.20503@errno.com> References: <20070228102459.GB28669@zibbi.meraka.csir.co.za> <45E5A73E.20503@errno.com>
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In message: <45E5A73E.20503@errno.com>
Sam Leffler <sam@errno.com> writes:
: John Hay wrote:
: > Hi,
: >
: > Does anyone have or is busy with an app that one can load in the
: > redboot flash, that will load the kernel from the active partition
: > of a compact flash? I know one can load the kernel in the redboot
: > flash, but that makes remote upgrading more difficult. The way I
: > have done with our wrap and soekris boards, is to create 2 slices
: > on the CF. When upgrading, you just format and install on the
: > non-active slice, change the active bit and reboot.
:
: A certain someone promised to add read/write support for the flash.
That would be me... My day job has been crazy and my new son isn't
yet sleeping through the night.
: When that happens another option is to write the new kernel to flash
: before rebooting. Otherwise we need a redboot image that grok's ufs or
: a secondary bootstrap that can be written to flash that knows how to
: boot from cf (I recall the latter might be in the obsd thecus work).
The at91 boot2 groks ufs and only needs a function that can read the
sectors from the underlying media to grok new media. Of course, it
inherited most of that from the i386 boot2.
Warner
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