If your SD card does not already contain a bootable (active) FAT32 partition, you can create one from a Linux Ubuntu host.
The following procedure provides a quick, step-by-step example of the procedure you can use from a Linux Ubuntu terminal to prepare an SD card with a bootable DOS / FAT32 filesystem.
/home/user/> sudo fdisk /dev/sdd Command (m for help): p Disk /dev/sdd: 15.9 GB, 15931539456 bytes 64 heads, 32 sectors/track, 15193 cylinders, total 31116288 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x938b698a Device Boot Start End Blocks Id System
Command (m for help): u Changing display/entry units to cylinders
Command (m for help): o Building a new DOS disklabel with disk identifier 0xdf0e79d5. Changes will remain in memory only, until you decide to write them. After that, of course, the previous content won't be recoverable. Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
Command (m for help): n Partition type: p primary (0 primary, 0 extended, 4 free) e extended Select (default p): p (The new partition is a primary partition.) Partition number (1-4, default 1): (Press Enter for default.) Using default value 1 First cylinder (2-15193, default 2): (Press Enter for default.) Using default value 2 Last cylinder, +cylinders or +size{K,M,G} (2-15193, default 15193): (Press Enter for default.) Using default value 15193
Command (m for help): a Partition number (1-4): 1 (Select Partition 1 to be active.)
Command (m for help): t Selected partition 1 Hex code (type L to list codes): c Changed system type of partition 1 to c (W95 FAT32 (LBA))
Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. WARNING: If you have created or modified any DOS 6.x partitions, please see the fdisk manual page for additional information. Syncing disks.
/home/user> sudo mkfs.vfat -F32 /dev/sdd1 mkfs.vfat 3.0.13 (30 Jun 2012) /home/user>
Your SD card should now be ready to use with the BSP boot images.