boot code

[Bernt Hansson]

On 2016-02-28 23:58, Polytropon wrote:
> On Sun, 28 Feb 2016 23:38:49 +0100, Bernt Hansson wrote:
>> Hello list!
>>
>> I need to get the boot code on a hdd.
>> Tried boot0cfg and fdisk -B /dev/ada1
>>
>> But upon a reboot choosing the hdd it just don´t boot.
>
> The disk needs to have at least one partition that's marked
> as active, if I remember correctly. This is the "old way"
> of initializing it:
>
> 	# fdisk -BI /dev/ada1
> 	# bsdlabel -B -w ada0s1
>
> Add "-b /boot/boot0" for the fdisk command if you need to
> specify the boot code (normal boot or boot manager).
>
> If you want to use the whole disk as a "dedicated partition",
> you can do this:
>
> 	# bsdlabel -w ada1
> 	# bsdlabel -e ada1
> 		set type "4.2BSD" for 'a' partition
> 		make 'a' same size as 'c'
> 		save
> 	# newfs -m 0 -i 16384 -b 16384 -f 2048 -U -t enable -n disable -L ssdroot /dev/ada1a
> 	# bsdlabel -B ada1
>
> Adjust -i, -b and -f according to the expected usage.
> But that's not a very kind way to deal with disks. :-)
>
> You should use gpart today. There is good documentation
> in "man gpart", as well as those resources:
>
> http://www.wonkity.com/~wblock/docs/html/disksetup.html
>
> https://www.freebsd.org/doc/handbook/disks-adding.html
>
> http://www.freebsd.org/doc/handbook/geom-glabel.html
>
> Avoid MBR partitioning if possible - it's considered obsolete,
> outdated, old-fashioned, stupid and lame. ;-)
>
Thank you but no cigar.

The machine is amd64 10.2-R so my guess its gpt.