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Increase the disk space of a ServiceNav Box

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To enlarge a Linux partition here is the procedure to follow

Prerequisites: Having achieved an increase in VM disk size

  1. Login as SSH as root (if you are logged in 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 3 partitions. Beyond that it is not possible to add space.

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