On windows host I changed the vdi size by typing - VBoxManage.exe modifyhd vdi_file --resize 50000

It was completed and I can see the new size of the file in my windows explorer.

Inside the settings of the virtualbox it shows that the Ubuntu.vdi is 48.83GB with actual size of 24.66GB.

But when I try to install vivado I receive a message that there is not enough disk space on /opt/Xilinx to install. Under the Disk Space Required it says space required - 15.21GB space available - 11.05GB. Should be approximately 22GB available after resizing the vdi file.

Why doesn't the install see the size increase when virtualbox does see it?

  • Ok, I installed gparted in Ubuntu ran it and I get a window showing the /dev/sda1 partition ext4 file system with a size of 28.93gb. I select this entry and try to resize it but I am unable to do so.
    – rklein
    Nov 13, 2015 at 16:30
  • You have to run it in a live environment. You can't resize the partition if it's mounted. Boot the virtual machine with the disk image you used to create it, and select "try ubuntu". Gparted should be included on the live disk, and you can fix it from there. Nov 13, 2015 at 19:50

1 Answer 1


Increasing the size of the disk does not automatically increase the size of the partitions on it. You have to use a tool like gparted to do that. Once you start gparted it will show you all the unused space, and you simply drag the partition boundaries around to fill that up.

  • Not on a virtual disk.
    – Pilot6
    Nov 13, 2015 at 16:29
  • Yes, I certainly had to do that on my virtual machine. And it appears that the OP needs to do it as well. Nov 13, 2015 at 19:50

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