From owner-freebsd-arm@freebsd.org Fri Feb 22 15:38:13 2019 Return-Path: Delivered-To: freebsd-arm@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 2D1E914F02CC for ; Fri, 22 Feb 2019 15:38:13 +0000 (UTC) (envelope-from sparvu@kronometrix.org) Received: from mail.kronometrix.org (mail.kronometrix.org [95.85.46.90]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mail.kronometrix.org", Issuer "mail.kronometrix.org" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 7172E71E87 for ; Fri, 22 Feb 2019 15:38:12 +0000 (UTC) (envelope-from sparvu@kronometrix.org) Received: from [192.168.1.191] (213-216-249-17.bb.dnainternet.fi [213.216.249.17]) (authenticated bits=0) by mail.kronometrix.org (8.15.2/8.15.2) with ESMTPSA id x1MFc9wb054248 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 22 Feb 2019 15:38:10 GMT (envelope-from sparvu@kronometrix.org) X-Authentication-Warning: mail.kronometrix.org: Host 213-216-249-17.bb.dnainternet.fi [213.216.249.17] claimed to be [192.168.1.191] From: Stefan Parvu Mime-Version: 1.0 (Mac OS X Mail 12.2 \(3445.102.3\)) Subject: Re: RBPI3B+ FreeBSD 12 ZFS Date: Fri, 22 Feb 2019 17:38:03 +0200 References: To: freebsd-arm@freebsd.org In-Reply-To: Message-Id: <5D976A97-9800-4A9F-A155-F3BD998AFB4C@kronometrix.org> X-Mailer: Apple Mail (2.3445.102.3) X-Rspamd-Queue-Id: 7172E71E87 X-Spamd-Bar: ++ Authentication-Results: mx1.freebsd.org; spf=pass (mx1.freebsd.org: domain of sparvu@kronometrix.org designates 95.85.46.90 as permitted sender) smtp.mailfrom=sparvu@kronometrix.org X-Spamd-Result: default: False [2.99 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+a]; MV_CASE(0.50)[]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-arm@freebsd.org]; HAS_XAW(0.00)[]; NEURAL_SPAM_MEDIUM(0.87)[0.870,0]; RCPT_COUNT_ONE(0.00)[1]; TO_DN_NONE(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MX_GOOD(-0.01)[cached: mail.kronometrix.org]; NEURAL_SPAM_LONG(0.59)[0.595,0]; DMARC_NA(0.00)[kronometrix.org]; NEURAL_SPAM_SHORT(0.85)[0.854,0]; IP_SCORE(0.48)[asn: 14061(2.48), country: US(-0.07)]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+,1:+]; ASN(0.00)[asn:14061, ipnet:95.85.0.0/18, country:US]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2] Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Feb 2019 15:38:13 -0000 I know ZFS would need a decent amount of RAM to start with. So for such = low sized=20 SBC systems, like Raspberry PI having ZFS for root might be no go. What I meant was: how complicated would be right now for FreeBSD 12 to = have an=20 ARM64 RBPI3B+ image image which could use ZFS to boot from a SD Card. Stefan Parvu sparvu@kronometrix.org > On 22 Feb 2019, at 17.23, Karl Denninger wrote: >=20 > On 2/22/2019 09:07, Stefan Parvu wrote: >> Hi, >>=20 >> Just curious, would ZFS work on a RBPI3B+ board with 1 GB RAM only=20 >> using FreeBSD 12 STABLE ? the hardware is 64bit but would it boot on >> 1 GB RAM for its own ARC internal operations ? >>=20 >> Thanks, >>=20 >> Stefan Parvu >> sparvu@kronometrix.org >=20 > Are you talking about attempting to mount root off a ZFS filesystem on > the SD card or booting it as usual and then loading zfs once running > (e.g. to talk to a USB-attached disk)? >=20 > I think you'll find that while it might run it's a very bad idea for a > whole host of reasons; what purpose do you have in doing this? >=20 > --=20 > Karl Denninger > karl@denninger.net > /The Market Ticker/ > /[S/MIME encrypted email preferred]/