From owner-freebsd-current@freebsd.org Fri Feb 12 01:44:13 2021 Return-Path: Delivered-To: freebsd-current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 2DBA253F05E for ; Fri, 12 Feb 2021 01:44:13 +0000 (UTC) (envelope-from fullermd@over-yonder.net) Received: from mail.infocus-llc.com (mail.infocus-llc.com [IPv6:2604:3a00:2:1::2:13]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4DcGWJ1C1bz3kR6 for ; Fri, 12 Feb 2021 01:44:11 +0000 (UTC) (envelope-from fullermd@over-yonder.net) Received: from draco.over-yonder.net (draco.over-yonder.net [IPv6:2001:470:1f0f:11ae::5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mail.tarragon.infocus-llc.com (Postfix) with ESMTPSA id 4DcGW75qRgzT0f; Thu, 11 Feb 2021 19:44:03 -0600 (CST) Received: by draco.over-yonder.net (Postfix, from userid 100) id 4DcGW66prnzKKj; Thu, 11 Feb 2021 19:44:02 -0600 (CST) Date: Thu, 11 Feb 2021 19:44:02 -0600 From: "Matthew D. Fuller" To: Freddie Cash Cc: "Russell L. Carter" , FreeBSD-Current Subject: Re: upgrade stable/12 -> stable/13 zfs + boot partition Mediasize 64K Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Editor: vi X-OS: FreeBSD User-Agent: Mutt/2.0.5 (2021-01-21) X-Rspamd-Queue-Id: 4DcGWJ1C1bz3kR6 X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of fullermd@over-yonder.net designates 2604:3a00:2:1::2:13 as permitted sender) smtp.mailfrom=fullermd@over-yonder.net X-Spamd-Result: default: False [-2.00 / 15.00]; RCVD_TLS_ALL(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; R_SPF_ALLOW(-0.20)[+mx]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[over-yonder.net]; ARC_NA(0.00)[]; NEURAL_SPAM_SHORT(0.30)[0.305]; SPAMHAUS_ZRD(0.00)[2604:3a00:2:1::2:13:from:127.0.2.255]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TO_DN_ALL(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; FREEMAIL_TO(0.00)[gmail.com]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:33069, ipnet:2604:3a00::/32, country:US]; RCVD_COUNT_TWO(0.00)[2]; MAILMAN_DEST(0.00)[freebsd-current]; RBL_DBL_DONT_QUERY_IPS(0.00)[2604:3a00:2:1::2:13:from] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 12 Feb 2021 01:44:13 -0000 On Thu, Feb 11, 2021 at 04:43:57PM -0800 I heard the voice of Freddie Cash, and lo! it spake thus: > > Sorry, meant 256 KB or 512 KB, not MB! Worth remembering: at least in the past, there was also an _upper_ limit to the size based on the lower-level bootblocks that read the freebsd-boot partition, above which things would also break horribly. I don't recall exactly what it was, but it was >512k and <1m (maybe 600k-ish?). So don't just make it arbitrarily bigger. -- Matthew Fuller (MF4839) | fullermd@over-yonder.net Systems/Network Administrator | http://www.over-yonder.net/~fullermd/ On the Internet, nobody can hear you scream.