Running gpart boot code after upgrade zfs pool to feature flag ?

[bsd at todoo.biz]

Hello, 

I have just successfully upgraded my server from 9.1 to 9.2 and activated the latest feature flag on my zpool. 


> tube:root 21:04:53 /root # zpool upgrade -a 
> This system supports ZFS pool feature flags.
> 
> Successfully upgraded 'zroot' from version 28 to feature flags.
> Enabled the following features on 'zroot':
>   async_destroy
>   empty_bpobj
>   lz4_compress
> 
> If you boot from pool 'zroot', don't forget to update boot code.
> Assuming you use GPT partitioning and da0 is your boot disk
> the following command will do it:
> 
>         gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 da0
> 

I really don't know if I need to issue this command… 

I have tried to figure out by reading the man gpart but It is not 100% clear to me… 

My gpart config is as follow : 


> tube:root 21:11:05 /usr/ports/ports-mgmt/poudriere screen # gpart show
> =>        34  1677721533  da0  GPT  (800G)
>           34         128    1  freebsd-boot  (64k)
>          162           6       - free -  (3.0k)
>          168     8388608    2  freebsd-swap  (4.0G)
>      8388776  1669332784    3  freebsd-zfs  (796G)
>   1677721560           7       - free -  (3.5k)
> 
> =>       63  113246145  da1  MBR  (54G)
>          63  113242122    1  freebsd  [active]  (54G)
>   113242185       4023       - free -  (2M)
> 
> =>        0  113242122  da1s1  BSD  (54G)
>           0    4194304      1  freebsd-ufs  (2.0G)
>     4194304    8388608      2  freebsd-swap  (4.0G)
>    12582912    4194304      4  freebsd-ufs  (2.0G)
>    16777216   31457280      5  freebsd-ufs  (15G)
>    48234496   65007626      6  freebsd-ufs  (31G)
> 

Shall I run the command provided or not ? 


>  gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 da0


Any help will be welcome since I really don't want to mess up with my server. 


Thanks.

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