It is possible to run UCS without a dedicated SWAP partition, but to use a SWAP file instead.
After the partitioning without a SWAP partition, do:
fallocate -l 4194304 /swapfile
chown root:root /swapfile
chmod 0600 /swapfile
mkswap -L SWAP /swapfile
swapon /swapfile
echo "/swapfile none swap defaults 0 0" >> /etc/fstab
to create a Swap file with a size of 4GB.
Remount with mount -a