gmirror on root filesystem

Russell E. Meek rmeek at
Thu Jan 4 20:01:54 UTC 2007

Quoting Josh Paetzel <josh at>:

> I'm trying to use gmirror on my root filesystem.  I've set sysctl
> kern.geom.debugflags to 16 and yet can't label the root partition.
> # gmirror label -v root /dev/ad4s1a
> Can't store metadata on /dev/ad4s1a: Operation not permitted.
> I was able to do this for /var and /usr while they were mounted.
> Unless someone has any ideas the only solution I see is to put this
> disk in a different box to create the mirror.
> --
> Thanks,
> Josh Paetzel
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If using Kernel Secure Levels input the following into rc.conf and reboot.




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