Format USB Stick to EXT4 remains FAT32 - Raspberry Pi Forums

hello people, starting crazy , hope able me.
have usb stick plugged on raspberrypi running raspbian. usb stick detected on /dev/sda1 fat32 shown fdisk-l output.

want convert filesystem ext4 after being sure not mounted run sudo mkfs.ext4 /dev/sda1 -l untitled

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pi@raspberrypi ~ $ sudo mkfs.ext4 /dev/sda1 -l untitled mke2fs 1.42.5 (29-jul-2012) filesystem label=untitled os type: linux block size=4096 (log=2) fragment size=4096 (log=2) stride=0 blocks, stripe width=0 blocks 4096000 inodes, 16383992 blocks 819199 blocks (5.00%) reserved super user first data block=0 maximum filesystem blocks=0 500 block groups 32768 blocks per group, 32768 fragments per group 8192 inodes per group superblock backups stored on blocks:         32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,         4096000, 7962624, 11239424  allocating group tables: done writing inode tables: done 

when run again fdisk-l usb stick still detected fat32:

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disk /dev/sda: 67.1 gb, 67108864000 bytes 2 heads, 63 sectors/track, 1040253 cylinders, total 131072000 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: 0x00106023     device boot      start         end      blocks   id  system /dev/sda1   *          64   131071999    65535968    b  w95 fat32 

tried program named fstransform, worked 3 or 4 hours , in end said optimistically
fstransform: completed successfully. device '/dev/sda1' contains 'ext4' file-system

again fdisk-l output said filesystem fat32.. doing wrong??

can assume usb-stick empty or not interested in keeping of files on ?

should delete existing partition , create new 1 (with type linux) before formatting mkfs.xxx.

http://www.howtogeek.com/106873/how-to- ... -on-linux/

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