Increase the disk space of a ServiceNav Box

To enlarge a Linux partition here is the procedure to follow

Pre-requisites

Have achieved an increase in the size of the VM disk

Steps to follow

1. Connect to SSH as root (if you are connected with the coadmin account run the command sudo su - )
2. Issue the following command: echo 1 > /sys/block/sda/device/rescan
3. Issue the following command:  cfdisk
4. Go to " Free Space " then choose in the menu News partition / Logic Example: /dev/sda4 => WRITE
5. Note the name of the new partition: ex /dev/sda4
6. Issue the following command: partprobe
7. Issue the following command: pvcreate /dev/sdaX  Example: pvcreate /dev/sda4 (if that doesn't work restart the box)
8. Retrieve the name of the logical volume to be increased :  lvdisplay
9. Enter the command : vgextend GRPE_VOLUME_NAME /dev/sdaX
   • For example: vgextend template-ubuntu-snb-16-04-vg /dev/sda4
10. Retrieve the path of the LV PATH logical volume and resize it.
    • lvresize -l +100%FREE LV PATH  (to set 100%)
    • For example: lvresize -l +100%FREE /dev/template-ubuntu-snb-16-04-vg/root
11. Retrieve the name of the partition to be resized with the command df -h

Enter the following command: resize2fs /dev/mapper/template-ubuntu-snb-16-04-vg-root

Check with the command : df -h

 IMPORTANT 

If you need to create a primary partition, be careful not to exceed
exceed 3 partitions. Beyond that it is not possible to add
space.