github.com/bradfitz/embiggen-disk (go): The embiggen-disk command live resizes a filesystem and LVM objects and partition tables as needed. It's useful within a VM guest to make its filesystem bigger when the hypervisor live resizes the underlying block device.
Keywords: btrfs|ext4|gpt|lvm|mbr|qemu|resize|resize2fs|virtual-machine|vm|vms