8.2-RELEASE unsupported ZFS version 15 (should be 14)

[nez]

Hi,

I have raidz1 and updated 64-bit 8.1-RELEASE to 8.2-RELEASE with
freebsd-update -r 8.1-RELEASE upgrade
After few boots and freebsd-updates installs I upgraded zpool to version 15.

After booting I was stuck with

ZFS: i/o error - all block copies unavailable

After booting with 8.2-RELEASE usb-stick to fixit and modifying the loader I'm now stuck with

ZFS: unsupported ZFS version 15 (should be 14)
No ZFS pools located, can't boot

What did I do wrong? I thought the zpool version 15 is the default in 8.2-RELEASE. What would be the easiest way to fix this?

Thanks for the help.

 

[gkontos]

Sounds like a root on ZFS installation with an older bootcode.

Try booting with your memstick to upgrade the bootcode in those drives:

[CMD=""]# gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 ada0[/CMD]

Replace ada0 with your device.

The command might have to be issued differently depending on the RELEASE media. For 8.2-RELEASE it would be:

[CMD=""]# gpart bootcode -b /mnt2/boot/pmbr -p /mnt2/boot/gptzfsboot -i 1 ada0 [/CMD]

 

[dave]

Did you typo the command in your post? Because if you are upgrading TO 8.2, this should have been 8.2-RELEASE, like so:

freebsd-update -r 8.2-RELEASE upgrade

What is the output of:

uname -a

 

[nez]

Thanks gkontos, I'll try that in few days. (don't have access to my server at the moment)

Dave, it was a typo, sorry about that. I wrote:

freebsd-update -r 8.2-RELEASE upgrade

 

[nez]

This is solved know.

What I needed to do was (as suggested by gkontos):
[CMD=""]gpart bootcode -b /mnt2/boot/pmbr -p /mnt2/boot/gptzfsboot -i 1 ada4[/CMD]
For all the drives ad4-ad8.
And copy the zfsloader from the boot disk:
[CMD=""]cp /mnt2/boot/zfsloader /mnt/zroot/boot[/CMD]

Thank you for the help.