[CentOS] Growing HW RAID arrays, Online

[Billy Crook]

On Sun, Feb 23, 2014 at 8:33 AM, Nux! <nux at li.nux.ro> wrote:
> 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".

So my question is 'why can't partitions be grown live like disks can?'
 I'm tempted to call this a bug.