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Date:      Sun, 17 Nov 2002 14:26:26 +0100
From:      Dan Lukes <dan@obluda.cz>
To:        freebsd-hackers@freebsd.org
Cc:        dima@sinp.msu.ru
Subject:   Re: active vn-devices
Message-ID:  <3DD79902.7060106@obluda.cz>
In-Reply-To: <20021115105829.S500-100000@localhost>
References:  <20021115105829.S500-100000@localhost> <20021115084206.GB29453@sunbay.com>

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Ruslan Ermilov wrote, On 11/15/02 09:42:

> > How can I list active (i.e. configured with vnconfig) /dev/vn* devices?
> >
> No way.


	Tricky way.

	Try to configure each vn device - with NO file name requesting NEGATIVE 
size.

	If you got EBUSY, the device is configured. If you got EDOM, the device 
is free. You can also try attach an EACCESS or EPERM unaccesible file.

					Dan


-- 
Dan Lukes     tel: +420 2 21914205, fax: +420 2 21914206
root of  FIONet, KolejNET,  webmaster  of www.freebsd.cz
AKA: dan@obluda.cz, dan@freebsd.cz,dan@kolej.mff.cuni.cz



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