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I tried to format a usb flash disk to FAT32 using fdisk /dev/sdb(I created a new partition and saved changes with w) and mkfs.vfat -F 32 /dev/sdb but when i eject and mount the volume again,it looks like it's empty.

dmesg | tail

outputs:

[ 8583.830684] usb-storage 3-2:1.0: USB Mass Storage device detected
[ 8583.830801] scsi host5: usb-storage 3-2:1.0
[ 8584.864614] scsi 5:0:0:0: Direct-Access     Generic  Flash Disk       5.00 PQ: 0 ANSI: 2
[ 8584.865005] sd 5:0:0:0: Attached scsi generic sg1 type 0
[ 8584.865070] sd 5:0:0:0: [sdb] 31283200 512-byte logical blocks: (16.0 GB/14.9 GiB)
[ 8584.865194] sd 5:0:0:0: [sdb] Write Protect is off
[ 8584.865196] sd 5:0:0:0: [sdb] Mode Sense: 0b 00 00 08
[ 8584.865314] sd 5:0:0:0: [sdb] No Caching mode page found
[ 8584.865318] sd 5:0:0:0: [sdb] Assuming drive cache: write through
[ 8584.870170] sd 5:0:0:0: [sdb] Attached SCSI removable disk
Lucian Dan
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1 Answers1

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mkfs.vfat -F 32 /dev/sdb

Running this command overwrites any partitioning of the disk. You should have used

mkfs.vfat -F 32 /dev/sdb1

instead. This will create the filesystem on the first partition of sdb.

Turbo J
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