Date: Wed, 29 Jun 2016 08:42:53 -0400 From: Paul Mather <paul@gromit.dlib.vt.edu> To: Daniel Braniss <danny@cs.huji.ac.il> Cc: Tim Kientzle <tim@kientzle.com>, freebsd-arm <freebsd-arm@freebsd.org>, Ian Lepore <ian@freebsd.org> Subject: Re: Booting FreeBSD on BeagleBone Black from microSD by default Message-ID: <40958D61-2B4A-45DA-AD82-3A2841ADA091@gromit.dlib.vt.edu> In-Reply-To: <35268C07-C9A3-430C-BB06-E2B99227DE5C@cs.huji.ac.il> References: <20160413095534.B48EA406057@ip-64-139-1-69.sjc.megapath.net> <1460560419.52955.23.camel@freebsd.org> <CAPyFy2AHdog0GzLBDQWeg%2B494yWo73gEJzFBPS_v=Nz3YparUA@mail.gmail.com> <87D8B295-950F-4B9D-AF58-0455FC212087@kientzle.com> <35268C07-C9A3-430C-BB06-E2B99227DE5C@cs.huji.ac.il>
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On Jun 29, 2016, at 2:21 AM, Daniel Braniss <danny@cs.huji.ac.il> wrote: >> On 29 Jun 2016, at 07:14, Tim Kientzle <tim@kientzle.com> wrote: >>=20 >>>=20 >>> On Jun 28, 2016, at 12:45 PM, Ed Maste <emaste@FreeBSD.org> wrote: >>>=20 >>> On 13 April 2016 at 11:13, Ian Lepore <ian@freebsd.org> wrote: >>>> On Wed, 2016-04-13 at 02:55 -0700, Hal Murray wrote: >>>>>> gpart unset -a active -i 1 mmcsd1 >>>>>=20 >>>>> Many thanks. That's just what I was looking for. >>>>>=20 >>>>> It would make a good addition to the wiki. >>>>=20 >>>> Oh, that's a good idea (so I did it). >>>=20 >>> On a related note, do you know if it's possible for the stock uboot = on >>> the eMMC to chain-load a new uboot from the SD card somehow (in = order >>> to avoid needing to make any change to the eMMC image)? >>=20 >> If I remember correctly, the uboot provided on the stock eMMC image = was configured to see if the SD card had a Linux kernel and load the = kernel from that if it was there. If the SD did not have a Linux = kernel, it would fall back to eMMC. >>=20 >> Of course, if you=E2=80=99re willing to hold the boot switch, you can = boot from SD without changing the eMMC. >>=20 >=20 >=20 > last time I did this, and as far as I remember, you had to hold the = boot switch only once, > after that every reboot was from the sd card. This is my experience, too. Only cold boots require holding down the = boot switch. Warm boots (e.g., "shutdown -r") don't, and boot from the = SD card. Cheers, Paul.
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