How to mirror the FreeBSD OS on two disks

Wojciech Puchar wojtek at
Thu Jul 12 17:42:23 UTC 2012

> The current Handbook procedure avoids the copy by using the existing disk 
> as-is and just writing the gmirror metadata to the last block.
Exactly what i do doing instalations manually!

> If that last block is already part of an MBR partition, the more strict checking stops 
> booting in 9.0.

not making MBR partition would not make problems.

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