1.) gg and dG
The easiest way is to type "gg" to bring yourself to the first line of the file and the "dG" clears the contents.
Hit Escape and colon and then type: 1,$d and all contents / lines of the file will be cleared.........
At first it was configured as a RAID 0, then I deleted the Virtual Disk Group.
I thought both drives would be shown and detected in Linux as sda and sdb but it actually shows nothing.
To make them work you have to hit Ctrl+R before the system boots (when prompted) and create a Virtual Disk Group. In my case I created each one as RAID 0 (with a single drive only) as I just wanted JBOD but there is no such option or default in these Dell Pe........