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Date: Tue, 1 Feb 2011 16:03:32 +0530
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From: "Jayachandran C." <c.jayachandran@gmail.com>
To: Monthadar Al Jaberi <monthadar@gmail.com>
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Cc: freebsd-mips@freebsd.org
Subject: Re: RS / RSPRO FreeBSD
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On Tue, Feb 1, 2011 at 3:02 PM, Monthadar Al Jaberi <monthadar@gmail.com> w=
rote:
> Sure,
>
> I used the standard kernel configuration file and modifed this:
> options =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 MD_ROOT
> options =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 MD_ROOT_SIZE=3D40960
> options =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 ROOTDEVNAME=3D\"ufs:md0\"
>
> to generate filesystem:
> makefs -t ffs -B big -s 40m rootfs.img path-to-filesystem/
>
> to embedd the filesystem (script code):
> addr=3D($(strings -td kernel | grep "MFS Filesystem" | awk '{print
> $1}')) #calculate start and end address for mdroot
> rootfs_start=3D${addr[0]}
> rootfs_end=3D$((${addr[1]}+1))
> echo "Generating kernel image"
> head -c ${rootfs_start} kernel > kernel.new
> cat rootfs.img >> kernel.new
> tail -c +${rootfs_end} kernel >> kernel.new
> gzip -9 kernel.new
>
> Sorry for the extreme delay, hope it helps...

You can just set the MFS_IMAGE environment variable, and the 'make
buildkernel' will patch the mfs image during the kernel build process.
The script it uses is sys/tools/embed_mfs.sh

JC.