Copy bootcode to mirror disk?

[Vladislav Prodan]

 --- Original message ---
 From: "perikillo" <perikillo at gmail.com>
 Date: 23 June 2016, 23:19:27
  


> Hi I have a server with 2 hard disk in mirror setup.
> 
> My slices are:
> 
> Code:
> root at spam:/boot # gpart show ada1
> 34 976773101 ada1 GPT (466G)
> 34 6 - free - (3.0K)
> 40 128 1 freebsd-boot (64K)
> 168 2097152 2 freebsd-ufs (1.0G)
> 2097320 16777216 3 freebsd-ufs (8.0G)
> 18874536 16777216 4 freebsd-ufs (8.0G)
> 35651752 1048576 5 freebsd-ufs (512M)
> 36700328 1048576 6 freebsd-swap (512M)
> 37748904 939024231 - free - (448G)
> 
> 
> My mirror has ada0 ada1, ada0 var slice fails, them I decide to replace the
> whole disk and follow the instructions for that using gpart and backup my
> current good disk layout into my new disk.
> 
> gpart backup ada1 | gpart restore -F /dev/ada0
> 
> 
> This create my slices, I forget each mirror slice and add each slice into
> the mirror again.
> 
> Everything working, but looks like I forget to add the bootcode to my new
> disk because it won't boot.
> 
> Now is booting from 2nd disk but need to boot from all hard disk, if ada1
> fails I will have issues.


Install the GPT bootcode into the boot partition:

# gpart bootcode -b /boot/pmbr -p /boot/gptboot -i 1 ada0

--
 Vladislav V. Prodan
 System & Network Administrator
 support.od.ua