How to predict drive number change for 7.3->8.1 upgrade?

Michael Sperber sperber at
Fri Sep 17 14:35:55 UTC 2010

"Marat N.Afanasyev" <amarat at> writes:

> you may try the following commands:
> sysctl kern.geom.debugflags=16
> foreach fs (your-filesystems)
> glabel label your-$fs-label your-$fs-device
> end
> echo geom_label_load="YES" >> /boot/loader.conf
> reboot
> and see if the labels appear in /dev/label

Is this safe to do?  The man page for glabel seems to imply that glabel
should be used before newfs, and tunefs after newfs.


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