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I have Ubuntu installed on a VirtualBox VM. How can I resize the Linux partition (not the virtual drive)?

I already performed the VM resize using VBoxManage modifyhd to resize the virtual drive, but I need to resize the Linux partition. I do not have a GUI to gparted, so I need to resize the partition from the command line.

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If you use LVM:

1) Expand physical volume (sda3 replace by your partition name):

sudo pvresize /dev/sda3

2) Check free space:

sudo vgdisplay

3) Add space to logical volume (VG00/share replace by your LV name):

sudo lvresize –L -r 100G VG00/share

4) Check changes:

sudo lvdisplay

If you don't use LVM:

All below commands work for unmounted partition, so you should boot from another source, for example, from iso (liveCD image).

1) Change partition size: sudo fdisk /dev/sda3:

  • remove old partition (d)
  • create new one, bigger (n)
  • write changes (w)

2) Expand file system:

sudo e2fsck -f /dev/sda3
sudo resize2fs /dev/sda3

3) Reboot system, boot as usual.

4) Check partitions:

df

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