resize virtualbox image

vbox_management

# resize
# 25600 = 25 * 1024MB

VBoxManage clonehd "NAME.vmdk" "NAME_CLONE.vdi" --format vdi
VBoxManage modifyhd "NAME_CLONE.vdi" --resize 25600
VBoxManage clonehd "NAME_CLONE.vdi" "NAME1.vmdk" --format vmdk

# download gparted iso and mount it in virtualbox
# extend the partition in gparted, apply changes
# unmount the iso

# reboot the machine

sudo su
lvm vgdisplay
# => Free  PE / Size       122880 / 480.00 GiB

lvm lvdisplay /dev/VolGroup/lv_root
# => Current LE             3978

# Calculate the sum of the values above. In this case : 122880 + 3978 = 126858 <- will be used in the next command

lvm lvresize -l 126858 /dev/VolGroup/lv_root
resize2fs     /dev/VolGroup/lv_root