Date: Thu, 25 May 2000 13:46:06 -0400 From: Brian McGovern <bmcgover@cisco.com> To: brendan@bmk.com.au Cc: questions@freebsd.org Subject: Re: How do I set up a swap file ? Message-ID: <200005251746.NAA52096@bmcgover-pc.cisco.com>
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> > I want to set up a swap file ( ie. a file on an existing ufs ) to be > used as additional swap space. > The easiest (and only) way I can think of doing it is to use the vn device, so you'd do something like: dd if=/dev/zero of=/<blah>/swapfile bs=1024 count=262144 vnconfig /dev/vn0 /<blah>/swapfile swapon /dev/vn0c In short, the first line creates a swap file. In this case, it should be ~256MB, unless I did my path wrong (possible). The second like uses the vn driver to map your file to the /dev/vn* devices. The third line tells swapon to add this "device" as swap space. Overall, it'll work, as I've used this method before. However, there will be quite a performance hit over a native swap partition. -Brian To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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