Secure Digital card/Reformatting/Fat

How to reformat an SD card with a FAT filesystem on an OLPC XO laptop.

Warning: loses the contents of the SD card, and may not provide best performance.

Ingredients

• an OLPC XO laptop with OLPC OS 13.2.0,
• an SD card with any filesystem,

Recipe

• start Terminal activity,
• install GParted, type this:

sudo yum install -y gparted

• insert the SD card,
• start GParted, type this:

sudo gparted

• wait for the GParted window to appear,
• select the external SD card; GParted -> Devices -> /dev/mmcblk0 or /dev/mmcblk1,
• select the partition,
• unmount the partition; Partition -> Unmount,
• delete the partition; Partition -> Delete,
• create the filesystem; Partition -> New, File system: fat, Label: x, Add,
• apply all pending operations; Edit -> Apply All Operations,
• stop GParted; GParted -> Quit,
• eject and reinsert the SD card, or reboot,