Date: Fri, 8 Jul 2022 13:10:30 -0700 From: Mark Millard <marklmi@yahoo.com> To: John Kennedy <warlock@phouka.net> Cc: "Wall, Stephen" <stephen.wall@redcom.com>, "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: Installing 13.1 ARM on SSD Message-ID: <1C93D01D-D316-496F-B1E0-B374C7E3CE88@yahoo.com> In-Reply-To: <YsiCaBSm931ZXuOk@phouka1.phouka.net> References: <MN2PR09MB4667694B5C97EAFA1816901AEE829@MN2PR09MB4667.namprd09.prod.outlook.com> <Yshwu18f3IuBUjU6@phouka1.phouka.net> <MN2PR09MB4667B5F0C2430DD5D980BD72EE829@MN2PR09MB4667.namprd09.prod.outlook.com> <YsiCaBSm931ZXuOk@phouka1.phouka.net>
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On 2022-Jul-8, at 12:15, John Kennedy <warlock@phouka.net> wrote: > On Fri, Jul 08, 2022 at 06:26:59PM +0000, Wall, Stephen wrote: >> I tried something like this - I used rsync to replicate the SD card's = (mounted) msdos partition onto the SSD's (also mounted) efi partition. = That got past the firmware message, but then it stopped in the boot = loader asking for a partition to boot from. 'zfs:zroot/ROOT/default' = resulted in an unknown partition. >>=20 >> At the moment, I'm running with the SSD imaged from the FreeBSD RPI = .img file, and that is working, but it's UFS, not ZFS. I'll give your = steps a try, and if I get nowhere, I might wind up creating a UFS = partition for root and boot, and make the rest of the disk zfs with my = desired filesystems. >=20 > So, bsdinstall should have set that up (zroot/ROOT/default). =46rom = the > UFS disk, I think (off the top of my head) you can just do a "zfs = import > zroot" and then you should be able to see it (and everything else) = with > a: "zfs list -tall -r zroot" If you picked something other than = zroot > for the pool name, you might need to do some more tweaking. >=20 > In my case, my USB disk is only ~256G. "The Design and Implementation of the FreeBSD Operating System" says about ZFS (page 548): "Like all non-overwritingfile systems, ZFS operates best when at least a quarter of its disk pool is free. Write throughout becomes poor when the pool gets too full. By contrast, UFS can run well to 95 percent full and acceptably to 99 percent full." So, for a 256 GiByte USB disk used basically just as space for one ZFS area (so nearly all the 256 GiBytes is available), That would mean being careful to avoid having much less than 64 GiBytes free on the media: hopefully using less than 192 192 GiBytes of space at all times. > I don't know if uboot has any > BIOS limitations like old x86 did. I've never had to be too wary, but > then I've never had BIOS-breaking SSDs laying around to attach to RPI. >=20 > I think uboot has some commands that might let you do some zfs > exploration, but hate to point you at web resources because there = seems > to be a huge variations in what we end up with on FreeBSD/RPI. My RPI > is a few hours into a firefox rebuild so I can't give you some real > guidance from what I'm using at the moment. =3D=3D=3D Mark Millard marklmi at yahoo.com
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