resizing aarch64 image on arm64

[Glen Barber]

On Mon, Apr 05, 2021 at 11:19:43PM -0700, John-Mark Gurney wrote:
> tech-lists wrote this message on Mon, Apr 05, 2021 at 16:59 +0000:
> > Can anyone tell me how to resize
> > https://download.freebsd.org/ftp/releases/VM-IMAGES/13.0-RC5/aarch64/Latest/FreeBSD-13.0-RC5-arm64-aarch64.raw
> > 
> > on an amd64 host?
> 
> note that this has been unxz'd already.
> 
> truncate -s 6g FreeBSD-13.0-RC5-arm64-aarch64.raw	# enlarge
> mdconfig -f FreeBSD-13.0-RC5-arm64-aarch64.raw		# make device
> gpart recover md1					# fix up gpt
> gpart resize -i 3 md1					# expand ufs partition
> growfs md1p3						# grow ufs
> 
> Note that mdconfig may output a different md device than md1, use
> that instead.
> 

The growfs(8) automatically runs at firstboot, so only the truncate(1)
part is needed.

Glen

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