On Fri, Sep 16, 2016 at 1:06 AM, Allan Jude <allanj...@freebsd.org> wrote:
> On 2016-09-16 01:04, Zaphod Beeblebrox wrote:
> > Are you using zvols to back the VMs? Make sure they are in
> > not 'geom' (the default), or GEOM will lock the device when it
> detects a
> > partition table being written to the zvol (from the installer inside
> > the VM)
> > Note that this setting requires you to export/import the pool or
> > to apply.
> > No, no. The whole point here is that I was booting the raw disk.
> > "ada1" as it were.
> You might try the dangerous 'shoot yourself in the foot mode' for geom:
> man 4 geom:
> 0x10 (allow foot shooting)
> Allow writing to Rank 1 providers. This would, for example,
> allow the super-user to overwrite the MBR on the root disk or
> write random sectors elsewhere to a mounted disk. The
> implications are obvious.
> sysctl kern.geom.debugflags=16
> I get where you're going here, but it doesn't apply because at this point
> I'm not even booting from ada1.
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