fsck on a read only partition?

[Poul-Henning Kamp]

In message <20070705002457.GZ45894 at elvis.mu.org>, Alfred Perlstein writes:
>Hello, how do I fsck my disk if it's mounted?
>
>I have downgraded the mount to read-only, but still geom seems
>to disallow fsck access to it. 
>
>Is there a way to tell the system to allow fsck to open it
>read/write?

Not apart from the dreaded debug option.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
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Never attribute to malice what can adequately be explained by incompetence.