On 22.02.2014 22:27, James A. Peltier wrote:
partprobe can rescan partitions, but it can't resize them. You may be able to use gparted or the parted text mode to resize partitions online.
Sadly you can't really do this without reboot. I'd love to be wrong, but I hit the same problem in the past and I simply found no way of doing it. Even with centos cloud instances, this operation (resize partition) has to be done from initramfs before the filesystems go "live".
Lucian