Increase space Virtual Box and Linux Partition

Clone the disk

VBoxManage clonehd “path/WebServer.vmdk” “path/WebServer.vdi” –format vdi

resize 20*1024 = 20GB

VBoxManage modifyhd “path/WebServer.vdi” –resize 20480

reconvert into vmdk

VBoxManage clonehd “path/WebServer.vdi” “path/WebServer.vmdk” –format vmdk

File -> Virtual Media Manager -> Removed existing images (note, I removed them only from the registry).

1. Open the Oracle VM VirtuaBox Manager
Click on File -> Virtual Media Manager (or Ctrl+D)
2. Delete the hard disk entry in question (select and press “Del” on keyboard)
3. Open “Settings” of the Virtual Machine, go to “Storage”, click “Add Attachment”, select “Add Hard Disk” and “Choose existing disk“, then selected the vdi file and you are done.

1. Download “gparted-live-x.xx.x-x-ixxx.iso” file from http://gparted.sourceforge.net/download.php. Mount this iso file as CD. Virtual Machine -> Settings -> Storage -> Controller IDE (Right Click) -> Add CD/DVD -> Select gparted-live-x.xx.x-x-ixxx.iso file
2. Run virtual machine, Virtual Machine will boot from this CD. Choose default values with pressing “Enter”, “Enter” … until Gpart ISO GUI starts. Select tool gpart program and start.
3. Extend disk size as below;
   • Right click on partitions and if “possible” click on “Disable Active Partion”.
   • Extend Partition as much as possible from GUI (for this case 500GB).
   • Right click the partition which is disabled and select “Enable Active Partion”.
   • Apply and wait until the operations finished.
   • Shut down virtual machine.
   • Unmount gparted-live-x.xx.x-x-ixxx.iso.
     $ Virtual Machine -> Settings -> Storage-> Controller IDE (Right Click on gparted-live-x.xx.x-x-ixxx.iso) -> Remove Attachement
   • Start the virtual machine.

vgdisplay

df -h

File system              Dim. Usati Dispon. Uso% Montato su
/dev/mapper/centos-root   19G  6,2G     13G  34% /
devtmpfs                 910M     0    910M   0% /dev
tmpfs                    920M     0    920M   0% /dev/shm
tmpfs                    920M  8,6M    912M   1% /run
tmpfs                    920M     0    920M   0% /sys/fs/cgroup
/dev/sda1               1014M  188M    827M  19% /boot
tmpfs                    184M     0    184M   0% /run/user/0

 

resize2fs /dev/mapper/centos-root

lvextend -l+100%FREE /dev/mapper/centos-root

resize2fs /dev/mapper/centos-root

xfs_growfs /dev/mapper/centos-root

df -ha

—– what did the provider to remeber—-

First step extend last partition:
fdisk /dev/sda
p > take note of beginning of sda4 just in case
d > 4
n > 4 > > >
t > 4 > e8 (to mark it as LVM partition)
w

reboot

Resize the lvm :
pvscan > to make sure we have free space
pvresize /dev/sda4

lvscan > to take note of lv path
lvextend -l +100%FREE /dev/centos/root

xfs_growfs /dev/mapper/centos-root -d