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Adding Swap Files [FreeBSD]

1. Edit your kernel file and add the following line:

   pseudo-device vn

2. Compile the kernel and reboot.

3. Create the swap file by typing:

   dd if=/dev/zero of= bs=m count=10

4. Create /etc/vntab and add the following to it:

   /dev/vn0c swap

5. To add the swap file type:

   vnconfig -ae

6. Create /usr/local/etc/rc.d/vnconfig.sh so the swap file would be added automatically at bootup and add the following:

   /usr/sbin/vnconfig -ae