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Date:      Mon, 19 Aug 2019 22:18:05 -0400
From:      Ricky Zhang <zhangchaowang@gmail.com>
To:        freebsd-arm@freebsd.org
Subject:   How to change rootfs from official RPI3 image
Message-ID:  <CAB_OnHM7C39downB0QxUUtG3_sf8fiVu=2w91=q-gwczYBS9VQ@mail.gmail.com>

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Hi,

I dd a FreeBSD 12.0 RPI3 image to a SD card. Everything works like a charm
on my RPI3.

But I want to switch rootfs to a larger USB hard drive. The boot partition
contains one configurable text file config.txt. I can't google how the
uboot load kernel from the rootfs partition. To my surprise, the FreeBSD
kernel is in the rootfs partition.

Is this u-boot pieces open source? Where are the user guide documents? The
only document I could find provides no technical details in boot sequence.

thanks,
Ricky



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