Paul Johnson wrote:
> Hi, I have a Sun Ultra 20 PC with 2 x 400GB HDD setup as a ZFS mirror at 
> root. I'm running a version of opensolaris that I downloaded about 2 weeks 
> ago.
>
> All went well until I added the 2nd disk to the zpool to make the mirror.
>
> Problem now is that on boot neither of the disks are reported by the BIOS, so 
> the system hangs, as would be expected as there is no boot device visible. 
>
> If I pull the 2nd disk out slightly the BIOS shows the 1st disk OK. Shoving 
> the 2nd disk in after the BIOS messages have finished, and before GRUB 
> appears, allows the OS to boot.
>
> Once booted both disks and ZFS show as OK.
>
> It looks to me like a ZFS boot issue, but I'm a DBMS guy not an OS guy.
>
>   
More like a BIOS issue.  Can the machine boot form the second disk only?

Ian

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