cp /etc/fstab /etc/fstab.bak
dd if=/dev/zero of=/swapfile bs=1G count=4
echo 'md99  none  swap  sw,file=/swapfile 0 0' >> /etc/fstab
swapon -a
echo 'tmpfs  /tmp  tmpfs  rw,mode=01777 0 0' >> /etc/fstab
rm -fR /var/tmp
ln -s /tmp /var/tmp
rm -fR /tmp/*
mount /tmp
mount
reboot