Re: GEOM oddity with verbose boot

From: Poul-Henning Kamp <phk_at_phk.freebsd.dk>
Date: Fri, 19 Dec 2003 14:06:48 +0100
In message <20031219125316.GB3682_at_mail.evip.pl>, Wiktor Niesiobedzki writes:

>Ofcourse, it finds, but what makes me worry, is how there could be a valid bsd
>label, if there is a valid UFS2 superblock?
>If I understand correctly, in first 8192 bytes of partition are at the same
>time:
>- UFS2 superblock
>- BSD label

The UFS2 superblock can be located four different places, at 0, at
8k, 64k or 256k into the partition.

The BSDlabel is at 512 bytes offset (on i386).

-- 
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.
Received on Fri Dec 19 2003 - 04:06:51 UTC

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