Date: Fri, 28 Feb 2020 16:04:19 +0000 From: "Vikash Badal (IS)" <Vikash.Badal@is.co.za> To: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: ZFS i/o error on boot unable to start system Message-ID: <fcfafdb7-3dca-6e45-8d49-6d30c7c79427@is.co.za> In-Reply-To: <eb8f8f32fcf5559774daf3a772a1ad2e.squirrel@webmail.harte-lyne.ca> References: <eb8f8f32fcf5559774daf3a772a1ad2e.squirrel@webmail.harte-lyne.ca>
next in thread | previous in thread | raw e-mail | index | archive | help
Hi James, On 2020/02/28 15:51, James B. Byrne via freebsd-questions wrote: > I have reported this on the forums as well. > Vikash Badal (IS) Senior Technical Systems Engineer T +27 11 5750825 this helped me with this issue: https://forums.freebsd.org/threads/i-broke-11-0-beta2-uefi-zfs-root-boot.57137/ tldr; - boot usb/cd image (must be same version -as OS) from shell: - gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 <drive0-n> - if you using uefi: dd if=/boot/boot1.efifat of=/dev/<drive0-n>p1 refs: https://solence.de/2019/05/01/update-uefi-boot-code-after-zfs-upgrade-on-freebsd/ https://forums.freebsd.org/threads/i-broke-11-0-beta2-uefi-zfs-root-boot.57137/ > FreeBSD-12.1p2 > raidz2 on 4x8TB HDD (reds) > root on zfs > > We did a hot restart of this host this morning and received the following on > the console: > > ZFS: i/o error - all block copies unavailable > ZFS: failed to read pool zroot directory object > qptzfsboot: failed to mount default pool zroot > > FreeBSD/x86 boot > ZFS: i/o error - all block copies unavailable > ZFS: can't fild dataset 0 > Default: zroot/<0x0> > boot: > > What has happened? How do I get this system back up and online? > > My first thought is that in modifying rc.conf to change some ip4 address > assignments that I may have done something else inadvertently which has caused > this. I cannot think of any other changes made since the system was last > restarted a noon yesterday. > > ​This is an urgent matter. Any help is gratefully welcomed. >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?fcfafdb7-3dca-6e45-8d49-6d30c7c79427>