Using Geom to mirror root partitions?

Poul-Henning Kamp phk at
Wed Nov 19 03:12:40 PST 2003

In message <20031119110556.GA83112 at>, Josef Karthauser writes:
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>On Sat, Nov 15, 2003 at 09:42:18AM +0100, Poul-Henning Kamp wrote:
>> In message <20031115014133.GB31237 at>, Josef Karthauser w=
>> >What's the best way to prepare for this?  Should I leave some
>> >unallocated space at the beginning of the disk so that any magic geom
>> >bits can be inserted later?
>> Rather:  leave a bit free at the end.
>How much would you recommend I leave?  Proportional to the disk size, or
>just enough space for data structures?

In theory one sector should do fine, but make it a bit more.

Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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