Resize VirtualBox VM's disk (after being created by Vagrant). commands to run manually, first from windows host then on Linux vm

resize-vmi

# 1. First stop the VM
#   Back up what you can since it never hurts to do so!

# 2. convert .vmdk to .vmi and resize to 50G
#   if not in path VBoxManager is here by default: C:\Program Files\Oracle\VirtualBox\VBoxManage.exe
VBoxManage clonehd in.vmdk out.vmi --format VDI
VBoxManage modifyhd out.vmi --resize 51200

# 3. Go into VirtualBox settings for VM and remove the old vmdk disk and attach your new vmi in its place
#   This won't do anything to the disks but its always nice to have backups incase anything goes wrong

# 4. Boot up the vm with vagrant and connect via ssh
vagrant up
vagrant ssh

# 5. Resize the partition by deleting & recreating it (changes all get written to disk together, and only after you use w)
sudo fdisk /dev/sda1

# p to print partition table
# d to delete
# n to create new partion, then p for primary > then just use default values
# w to write changes to disk and exit

# 6. resize file system
resize2fs -p -F /dev/sda1

# Done!