Quick Tip: Delete existing partitions during CentOS 7 installation

Got stuck recently during a remote gig installing CentOS. Vanilla install failed  due to a hardware error and had to be reinstalled but unlike the earlier versions there wasn’t a clearly defined path to delete existing partitions. So here is what we did;

Installation destination:

  1. Custom partitoning, create automatic partitions will prompt that there is not enough free space
  2. Click Done to go back
  3. Select Automatic partition, click Done
  4. Click the recover free space option on the Error prompt window
  5. Delete all exiting partitions (or as needed)
  6. Click preserve to save changes
  7. Click Done to go back
  8. The Disk free space displayed near the bottom has increased

That’s it. You can now proceed with the usual installation steps.