oracle virtualbox increase disk size ubuntu

The user manual is quite clear on this subject: 'dynamic' means that host space for the drive is allocated dynamically (on demand). Regarding your question about whether your observation about the dynamic drive not enlarging is a bug: no it isn't a bug, because no claim is made that the drive capacity enlarges automatically, and your Ubuntu guest wouldn't support it if it did. O 'resize' is an in-place mod, which I regard as dangerous. Gparted or similar must be used to increase the filesystem partition. O 'resize' will only increase the size of the drive. O 'resize' will not work properly if you have used snapshots - those have to be got rid of first. The -resize argument for VBoxManage was introduced in VirtualBox v4, so you do have the right version. Resize only works with dynamic VDI or dynamic VHD, and the argument for -resize should be the size in megabytes of the new drive, not the size of the additional space.įor example, if you have a 10GB drive and you want a 15GB drive you say '-resize 15000' and not '-resize 5000'.

Oracle virtualbox increase disk size ubuntu