I just got a micro sd card that I plan on using with the Raspberry Pi.
I used the KDE partition manager to delete the original partition on the card and to write a new 12GiB ext4 partition. After doing this, the card still says that 6% of it, 30.02 MiB, is being used.
Basically, I want to completely wipe of the card of all contents so as to prepare it for a new OS. Would a command like
dd do the trick or would that destroy the partition as well?