Resize home partition, add disk type vdi/vmdk

Vagrantfile

@@ -53,9 +53,10 @@ Vagrant.configure("2") do |config|
     end
 
     DISKS.each do |disk|
-      datadisk = "disks/" + disk["name"] + ".vmdk"
+      diskType = disk["type"] || "vmdk"
+      datadisk = "disks/" + disk["name"] + "." + diskType
       unless File.exist?(datadisk)
-        vb.customize ['createmedium', '--filename', datadisk,'--format', 'VMDK', '--variant', 'Standard', '--size', disk["size"] * 1024]
+        vb.customize ['createmedium', '--filename', datadisk,'--format', diskType, '--variant', 'Standard', '--size', disk["size"] * 1024]
       end
       vb.customize ['storageattach', "devbox",  '--storagectl', 'SATA Controller', '--port', disk["port"], '--device', 0, '--type', 'hdd', '--medium', datadisk]
     end

disks/disks.yml

@@ -5,6 +5,7 @@ storage_disks:
   port: 1
   device: "/dev/sdb"
   mount: "/home"
+  type: "vdi"
 - name: docker
   size: 40
   port: 3

doc/Virtualbox.md

@@ -21,3 +21,24 @@ Copy&Paste no longer working after update. Reinstall guest additions in guest sy
 Check system service: "systemctl status vboxadd"
 If necessary attach guest additions in virtualbox and reinstall them from mounted path in e.g. "/opt/VBoxGuestAdditions-6.0.10/init/vboxadd"
 
+### Resize disk
+Resize Virtualbox/Vagrant disk image outside on the host system and inside in the virtual machine.
+
+* Resize disk image
+```
+VBoxManage clonemedium "source.vmdk" "cloned.vdi" --format vdi
+VBoxManage modifymedium "cloned.vdi" --resize 120000
+VBoxManage clonemedium "cloned.vdi" "resized.vmdk" --format vmdk
+```
+
+* Resize disk inside virtual machine
+```
+lsof /home
+umount /home
+e2fsck -f /dev/sdX1
+fdisk -l  # delete disk and re-add with new size
+e2fsck -f /dev/sdX1
+resize2fs /dev/sdX1
+partprobe
+systemctl restart lightdm
+```