Mount FAT32: Can't find a valid FAT filesystem

Question

Xubuntu 14.04. nfts-3g is installed.

/dev/sdc is the Flash drive. I have created new partition with fdisk (tried with cfdisk too). Tried with W95 FAT32 code and W95 FAT32 (LBA) code. ("b" and "c" in fdisk).

After writing the changes I try to mount it with:

mount -t vfat /dev/sdc1 /media/flash4gb/
mount: wrong fs type, bad option, bad superblock on /dev/sdc1,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

dmesg says:

[60591.890070] FAT-fs (sdc1): invalid media value (0x73)
[60591.890077] FAT-fs (sdc1): Can't find a valid FAT filesystem

NOTE: Usually the other software like: USB bootable USB creators working well. After they touch the drive, everything is fine. I am not sure FAT32, but the NTFS is well.

Solution

After creating the partition with fdisk you must create the FAT file system:

sudo mkfs.vfat -F 32 /dev/sdc1

Then you should be able to mount /dev/sdc1 with -t vfat.