Adding ZFS swap to EON

Adding a ZFS swap, sized to your liking with EON is easy once you have built a zpool. This is very HIGHLY recommended for performance reasons. Doing so will also make it possible to run update image (updimg.sh) on systems that do not have enough memory(systems that freeze in the midst of updimg.sh). A good size for starters are 1.0X, 1.5X and 2.0X RAM. After your zpool is built, simply do

zfs create -V 1G pool/swap

This will build a 1G swap(in this case it's named swap, but could be named to your preference). Then simply add the following to /mnt/eon0/.exec to auto mount at boot

/usr/sbin/swap -a /dev/zvol/dsk/pool/swap

Optional: You can also add it to /etc/vfstab but this would require running updimg.sh to preserve the changes.

echo "/dev/zvol/dsk/pool/swap - - swap - no -" >> /etc/vfstab

Please note the flexibility here. Let's say you need 2Gb of swap instead of the previous 1Gb. Simply:

swap -d /dev/zvol/dsk/pool/swap
zfs destroy pool/swap
zfs create -V 2G pool/swap
swap -a /dev/zvol/dsk/pool/swap

Your new, improved and resized swap is ready!