Change swap size after upgrade

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http://askubuntu.com – I have just upgraded my cpu/mobo/RAM and I would like to now increase the swap size without having to reformat my entire drive. Is this possible? My hard drive set up is as follows. mount /dev/mapper/ubuntu-root on / type ext4 (rw,errors=remount-ro) proc on /proc type proc (rw,noexec,nosuid,nodev) sysfs on /sys type sysfs (rw,noexec,nosuid,nodev) none on /sys/fs/fuse/connections type fusectl (rw) none on /sys/kernel/debug type debugfs (rw) none on /sys/kernel/security type securityfs (rw) udev on /dev type devtmpfs (rw,mode=0755) devpts on /dev/pts type devpts (rw,noexec,nosuid,gid= (HowTos)