[GRLUG] trouble mounting fat32 thumb drive

Eric Beversluis ebever at researchintegration.org
Tue Jun 11 09:08:51 EDT 2013


I've got a thumb drive formatted as FAT32. It mounts (albeit slowly) and
works ok on  windows 7 boxes and mounts automatically on my fedora 17
box. But when I try to mount it on a clearos box (based on centos), it
won't mount: Tells me it "can't find a valid FAT files system on dev
sde."

Disk /dev/sde: 32.2 GB, 32191283200 bytes
255 heads, 63 sectors/track, 3913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xc3072e18
   Device Boot      Start         End      Blocks   Id  System
/dev/sde1   *           1        3914    31436784    c  W95 FAT32 (LBA)
[root at clearos mnt]# mount -t vfat /dev/sde /mnt/thumb
mount: wrong fs type, bad option, bad superblock on /dev/sde,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so



[root at clearos mnt]# dmesg | tail
sd 9:0:0:0: [sde] 62873600 512-byte logical blocks: (32.1 GB/29.9 GiB)
sd 9:0:0:0: [sde] Write Protect is off
sd 9:0:0:0: [sde] Mode Sense: 43 00 00 00
sd 9:0:0:0: [sde] Assuming drive cache: write through
sd 9:0:0:0: [sde] Assuming drive cache: write through
 sde: sde1
sd 9:0:0:0: [sde] Assuming drive cache: write through
sd 9:0:0:0: [sde] Attached SCSI removable disk
FAT: invalid media value (0xb9)
VFS: Can't find a valid FAT filesystem on dev sde.



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