Hey all. I have a proxmox server running a CentOS 6.6 VM. The root partition is filling up because of Xymon monitoring logs so I decided it was high time to add another hard drive for storage purposes. After I added the hard drive to the VM, I shut it down manually, within the OS, then stopped and started the VM from Proxmox as is required per Proxmox instructions before the new HDD is recognized by the VM. The next step is to create the partition with fdisk so I did so. Primary, 1, write. Disks successfully synced. Then make the file system. When I do mkfs.ext4 -L /dev/sdb1 I can see it removing device blocks, but never finishes because the VM shuts itself down.

Anyone have any ideas what might be causing this?

Did you download the image from the internet?

It's from a build straight off our PXE Kickstart server. Same one that's deployed to the rest of our machines in our environment which consist of around 120 machines.