Hello all:
I realize that fat32 mounting questions are posted all the time, but after a search I still couldn't find anything to resolve my problem.
I have a dual-boot system with WinXP running on the first hard drive, and linux on the 2nd.
After booting into linux, my fat32 partition at /dev/hda1 refuses to mount.

When I give the command 'mount -t vfat /dev/hda1 /mnt/hda1' I get this response:
mount: wrong fs type, bad option, bad superblock on /dev/hda1,
or too many mounted file systems

As far as I can tell, I'm doing everything correctly, but I'm still new at linux so it's possible I've done something wrong. Please help me!

Here is the text from my fstab file and the output of 'fdisk -l':

Hardware specs:
Distro: Knoppix 3.3
Kernel Version: 2.4.22-xfs

/etc/fstab:
proc /proc proc defaults 0 0
pts /dev/pts devpts mode=0622 0 0
/dev/fd0 /mnt/auto/floppy auto user,noauto,exec,umask=000 0 0
/dev/cdrom /mnt/auto/cdrom auto user,noauto,exec,ro 0 0
/dev/cdrom1 /mnt/auto/cdrom1 auto users,noauto,exec,ro 0 0
# Added by KNOPPIX
/dev/hda1 /mnt/hda1 auto noauto,users,exec 0 0
# Added by KNOPPIX
/dev/hdb1 /mnt/hdb1 ext3 noauto,users,exec 0 0
# Added by KNOPPIX
/dev/hdb2 /mnt/hdb2 vfat noauto,users,exec,umask=000,uid=knoppix,gid=knoppix 0 0

fdisk -l:
Disk /dev/hda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/hda1 * 1 9729 78148161 c W95 FAT32 (LBA)

Disk /dev/hdb: 30.7 GB, 30735581184 bytes
255 heads, 63 sectors/track, 3736 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/hdb1 * 67 3736 29479275 83 Linux
/dev/hdb2 1 66 530113+ 82 Linux swap

Partition table entries are not in disk order

Any suggestions?

Are you sure it is fat32 and not ntfs?

Pretty sure. When installing XP I specified that it should NOT upgrade the partition to NTFS, and fdisk reports it as FAT32.

I know this is old news, but may help someone else in the future. It looks like you already have a device mounted at /mnt/hda1. Try mounting into an empty mount point.