VirtualBox: Adding more disk space to a VM

virtualbox_adding_space.sh

# This is a short walk through adding more disk space
# in a VirtualBox machine. There's good detailed information here:
# http://trivialproof.blogspot.com.es/2011/01/resizing-virtualbox-virtual-hard-disk.html

# Change to where your VirtualBox VMs are. For a Linux distribution it could be:
cd ~/VirtualBox\ VMs/

# Find the name of the virtual machine you want to resize
cd YOUR_VIRTUAL_MACHINE

# Resize the VDI file. For example --resize 46080 would allocate 45 Gb of space
VBoxManage modifyhd YOUR_HARD_DISK.vdi --resize SIZE_IN_MB

# We're not done yet: You have to expand the partition in the larger virtual disk
# To do so, book with a GParted LIVE ISO: Settings → Storage and load your ISO
# Boot up so the VM will boot with CD/DVD (In our case the GParted ISO).
# In GParted you'll have to make your partition bigger to use all the
# empty space that is now available. Then shut down GParted iso, remove
# the iso from 'Storage' and boot your VM normally with the new disk space