sudo dd if=/dev/sdb of=./sdb.raw VBoxManage convertdd sdb.raw sdb.vdi --format VDI
VBoxManage modifyhd --resize 30000 ~/Documents/VM/Windows10.vdi VBoxManage showhdinfo ~/path/to/vmdrive.vdi
Gparted right Click both sd2 and sd5 and chose "Deactivate". resize the extended (sda2) partition. resize the lvm (sda5) partition.
sudo lvextend --size +10G /dev/mapper/xserver--vg-root sudo lvdisplay /dev/mapper/xserver--vg-root sudo resize2fs /dev/mapper/xserver--vg-root
--covert back VBoxManage clonehd sdb.vdi sdb.raw --format RAW
or qemu-img convert -f vmdk sdb.vmdk -O raw sdb.raw
sudo dd if=./sdb.raw of=/dev/sdb
diskutil list
diskutil unmountDisk /dev/disk2
sudo dd bs=1m if=em.raw of=/dev/rdisk2