From nobody Tue Aug 5 16:56:53 2025 X-Original-To: dev-commits-doc-all@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4bxKMn4wbdz63SH9 for ; Tue, 05 Aug 2025 16:56:53 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (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-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R10" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4bxKMn2lhkz3bG8; Tue, 05 Aug 2025 16:56:53 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1754413013; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=9iUKXXZUc3vi7pQLmVzApF1HiOSMq2dVkCBZdSY6W2k=; b=AKAe8Yo1xEXef0bXJ+YScwle1LGnyI8eR9oSnsHQJgEo5AP79ZAv75TFIHEZIw2WoKsfQQ KcPkejagv4SN6+gHYs2iG5JduCexFHU0RIhKmJvVk3I0OXFPyXn+iwsULf0+BmPDGK7225 OWHQZ+AyK2wrR4dqF7cqM3v0wnoaUR+VesbpBPyzDMh4EZCH0PY0Hnv9j90SDWWOVex5aN 5bsF+dm+itMs0Suf10mx4P7OMP6KiPoFHNufqjiSaAnAUURkqX3QsfUPMihyZ7BATru6u4 Xpu1+y0KoiqWq4/QCEgwGz/OLQPzBhTu5n6ltkw41P3h845T568bHzZIcOlOMQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1754413013; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=9iUKXXZUc3vi7pQLmVzApF1HiOSMq2dVkCBZdSY6W2k=; b=kGsh6AAyZviG31jgXIXfSTNSyO8zZSQKmNCbsX2knfUuerI2A54rq7Divu0jxZZ+u6FchP wMNNPUQx27qkvk9OjMlzlfxkwB4X2wFKMbGjDPoKQ52RJOnE08h62xoctOWzbdQWgJBpw6 j08jwhp2bxNV1wz2G+X9uSqdkUVyVTojI4WhDH6q19Mey5ha3Jp74RyZulTnGL5qjNZqSZ Z+PE0/EWaN5skrNHwg6kiWQbAWttZ0C7NXdI1sykIAzMigoBZ5pvlNbyhjO1Kelda93TMM XWG4kxAm/kx0FawS/JjIirDKJpRbkNQFMuKWKVszcoqjEWNvRtHuxah6UGUsiw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1754413013; a=rsa-sha256; cv=none; b=S4muiicH6K8Unf0HcR9Loqvvt6fsVdoL1Mffi4KoycoLfv+hl+cBB3s0E0hhAiwiwKLCnp Ul9pt9vcNjRAY7rlHcWkB+284pNWHT5+cGxnKWkk0O6d1TqXk2IAiLp+BlJlJlVkiglw3L u3kublyH8U0OQwUauULkgVRiZEKh8l2lrhWcgHiI2Sd2VcU9oocpw/o0o0yjfwnVg/SDuk iNZQAZ1pGqULHNDUhoW25fJpfVOGFwLF5zGAWOxP5AUSNdJNp1rGHSWJRaHeU0OIYHqJHY LJIGByMD+ZHhLSCtQ3iyq1C6MPEb7mUElow+PrOHZ04HbhTLnkfHsp7LOyCRhA== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (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 mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4bxKMn29B2zkjh; Tue, 05 Aug 2025 16:56:53 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.18.1/8.18.1) with ESMTP id 575GurDl091414; Tue, 5 Aug 2025 16:56:53 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.18.1/8.18.1/Submit) id 575GurGX091411; Tue, 5 Aug 2025 16:56:53 GMT (envelope-from git) Date: Tue, 5 Aug 2025 16:56:53 GMT Message-Id: <202508051656.575GurGX091411@gitrepo.freebsd.org> To: doc-committers@FreeBSD.org, dev-commits-doc-all@FreeBSD.org From: Ed Maste Subject: git: 2238c247d4 - main - handbook: The freebsd-boot 512KB limit is for legacy BIOS List-Id: Commit messages for all branches of the doc repository List-Archive: https://lists.freebsd.org/archives/dev-commits-doc-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-doc-all@freebsd.org Sender: owner-dev-commits-doc-all@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: emaste X-Git-Repository: doc X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 2238c247d4a487ea7c94e6990eccb537bb44c603 Auto-Submitted: auto-generated The branch main has been updated by emaste: URL: https://cgit.FreeBSD.org/doc/commit/?id=2238c247d4a487ea7c94e6990eccb537bb44c603 commit 2238c247d4a487ea7c94e6990eccb537bb44c603 Author: Ed Maste AuthorDate: 2025-08-05 14:33:20 +0000 Commit: Ed Maste CommitDate: 2025-08-05 16:56:32 +0000 handbook: The freebsd-boot 512KB limit is for legacy BIOS A question[1] on Reddit asked about the 512KB freebsd-boot limit due to "current boot code limitations" in the context of EFI booting. Be clear that this is aobut legacy BIOS booting. This section should have a larger rework for EFI, but this is at least an improvement for the existing text. [1] https://www.reddit.com/r/freebsd/comments/1mia9z6/boot_partition_over_512kb_works_fine/ Reviewed by: imp Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D51702 --- documentation/content/en/books/handbook/bsdinstall/_index.adoc | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/documentation/content/en/books/handbook/bsdinstall/_index.adoc b/documentation/content/en/books/handbook/bsdinstall/_index.adoc index 5f24e4c43f..83acfe30e7 100644 --- a/documentation/content/en/books/handbook/bsdinstall/_index.adoc +++ b/documentation/content/en/books/handbook/bsdinstall/_index.adoc @@ -634,7 +634,8 @@ The `Size` may be entered with common abbreviations: _K_ for kilobytes, _M_ for ==== Proper sector alignment provides the best performance, and making partition sizes even multiples of 4K bytes helps to ensure alignment on drives with either 512-byte or 4K-byte sectors. Generally, using partition sizes that are even multiples of 1M or 1G is the easiest way to make sure every partition starts at an even multiple of 4K. -There is one exception: the _freebsd-boot_ partition should be no larger than 512K due to current boot code limitations. +There is one exception: a _freebsd-boot_ partition for BIOS booting should be no larger than 512K due to legacy boot code limitations. +This limitation does not apply to UEFI booting. ==== A `Mountpoint` is needed if the partition will contain a file system.