Date: Thu, 6 May 2021 05:55:21 -0700 From: Mark Millard <marklmi@yahoo.com> To: tech-lists <tech-lists@zyxst.net> Cc: freebsd-arm@freebsd.org Subject: Re: rpi4 zfs-on-root boot-to-usb3 Message-ID: <BE982BA1-0E6B-4805-B999-0A63B6C76BCF@yahoo.com> In-Reply-To: <YJPPMBijtB5MDZIo@ceres.zyxst.net> References: <YJPPMBijtB5MDZIo@ceres.zyxst.net>
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On 2021-May-6, at 04:12, tech-lists <tech-lists at zyxst.net> wrote:
> How can zfs-on-root boot-to-usb3 on rpi4 be accomplished?
>
> I've tried bsdinstall from a mmcsd-booted rpi4 but there seems to be
> problems with it that I can't work around. What's really needed is an
> installer, but these aren't made for arm64.aarch64 rpi4 from what I can
> see (I'm no expert though, it's entirely feasible i've missed
> something).
>
> Maybe one way of doing it would be to have a usb key (as ufs2) for the
> system to boot on, then have /home /usr/obj and other larger dirs on the
> usb3-zfs disk.
I used bsdinstall from booting a releng/13.0's release/13.0.0.0
microsd card in a 8 GiBYte RPi4B to produce the:
# gpart show -pl da0
=> 40 468862048 da0 GPT (224G)
40 532480 da0p1 efiboot0 (260M)
532520 2008 - free - (1.0M)
534528 25165824 da0p2 swp12a (12G)
25700352 25165824 da0p4 swp12b (12G)
50866176 417994752 da0p3 zfs0 (199G)
468860928 1160 - free - (580K)
# gpart show -p da0
=> 40 468862048 da0 GPT (224G)
40 532480 da0p1 efi (260M)
532520 2008 - free - (1.0M)
534528 25165824 da0p2 freebsd-swap (12G)
25700352 25165824 da0p4 freebsd-swap (12G)
50866176 417994752 da0p3 freebsd-zfs (199G)
468860928 1160 - free - (580K)
that I'm using to experiment with bectl and the like.
It boots the RPi4B 8 or 4 GiByte, the OverDrive 1000,
and the MACCHIATObin Double Shot. (I had to separately
add the RPi firmware and U-Boot to the efi file
system efiboot0 in order to enable the RPi4B booting.
Later I tried booting the other two.)
But until I go back and do it again to another USB3
SSD, recording steps as I go, I can not supply a
step-by-step sequence to go through. I might have to
again figure things out that I figured out the first
time. I just do not remember all the detail. It had
been years since I'd used bsdinstall.
It will be a while before I can try that but I
expect that I can and I then I should be able to
report an example sequence.
(I split the original swap space in two later.
I use only 1 of them as swap for 4 GiByte RPi4B's.
Part of my experiments have been using tmpfs in
poudriere and the large swap total for 8 GiBYte+
machines is tied to that activity for how I have
poudriere configured and building things like
llvm*, possibly multiple of them in parallel.)
===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)
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