Date: Sat, 31 Oct 2020 03:36:32 +0000 (UTC) From: Colin Percival <cperciva@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r367195 - head Message-ID: <202010310336.09V3aWSl060298@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: cperciva Date: Sat Oct 31 03:36:31 2020 New Revision: 367195 URL: https://svnweb.freebsd.org/changeset/base/367195 Log: Attempt to defuse a land mine before anyone else steps on it: The freebsd-boot partition is not always the first one. Following the instructions in UPDATING resulted in my overwriting the efiboot0 partition on my laptop with ZFS boot blocks, which had negative effects on the system's bootability. Reviewed by: allanjude Differential Revision: https://reviews.freebsd.org/D27002 Modified: head/UPDATING Modified: head/UPDATING ============================================================================== --- head/UPDATING Sat Oct 31 02:57:53 2020 (r367194) +++ head/UPDATING Sat Oct 31 03:36:31 2020 (r367195) @@ -2203,9 +2203,11 @@ COMMON ITEMS: 2.) update the ZFS boot block on your boot drive - The following example updates the ZFS boot block on the first - partition (freebsd-boot) of a GPT partitioned drive ada0: - "gpart bootcode -p /boot/gptzfsboot -i 1 ada0" + The following example updates the ZFS boot block on the + freebsd-boot partition of a GPT partitioned drive ada0: + "gpart bootcode -p /boot/gptzfsboot -i $N ada0" + The value $N will typically be 1 (if booting from BIOS) or 2 (if + booting from EFI). Non-boot pools do not need these updates.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?202010310336.09V3aWSl060298>