Date: Tue, 10 Dec 2024 18:10:28 +0100 From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@FreeBSD.org> To: Marco Beishuizen <mbeis.bsd@xs4all.nl> Cc: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: cannot boot: ZFS: unsupported feature" com.klarasystems:vdev_zaps_v2 Message-ID: <867c87bh17.fsf@ltc.des.dev> In-Reply-To: <378879736.3447641.1733839072974@kpc.webmail.kpnmail.nl> (Marco Beishuizen's message of "Tue, 10 Dec 2024 14:57:52 %2B0100 (CET)") References: <378879736.3447641.1733839072974@kpc.webmail.kpnmail.nl>
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Marco Beishuizen <mbeis.bsd@xs4all.nl> writes: > Quite unexpected (after a portupgrade) I suddenly can't boot anymore: > > [...] > BIOS drive C: is disk0 > ZFS: unsupported feature: com.klarasystems:vdev_zaps_v2 For this to happen you must have either a) upgraded your pool without upgrading your boot loader, b) downgraded your boot loader, or c) booted from the wrong medium (e.g. a CD or USB stick you forgot to remove before rebooting). Either way, portupgrade is not at fault. If the problem is c), simply remove the media in question and reboot. If the problem is either a) or b), you will need to boot from a CD or USB stick with a FreeBSD 14 image on it (preferably 14.2, but 14.0 or 14.1 will do if that's what you have at hand) and upgrade your boot loader as described in the gpart manual page or the ZFS chapter of the FreeBSD handbook: https://docs.freebsd.org/en/books/handbook/book/#zfs-zpool-upgrade DES -- Dag-Erling Smørgrav - des@FreeBSD.orghome | help
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