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Trouble mounting USB Flash drive

Hey everyone,

Up until now, Ubuntu has been mounting my flash drive automatically. However, recently it hasn't been mounting it at all. So I tried:

Code:

sudo mount -t vfat /dev/sda /media/usb

and it doesn't work. It gives me the error:

Quote:

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

So I do as I'm told and do:

Code:

dmesg | tail

When I do that, I get the following.

Code:

[17179692.936000] cramfs: wrong magic

[17179692.940000] VFS: Can't find ext3 filesystem on dev sda.

[17179692.940000] NTFS-fs warning (device sda): is_boot_sector_ntfs(): Invalid boot sector checksum.

[17179692.940000] NTFS-fs error (device sda): read_ntfs_boot_sector(): Primary boot sector is invalid.

[17179692.940000] NTFS-fs error (device sda): read_ntfs_boot_sector(): Mount option errors=recover not used. Aborting without trying to recover.

[17179692.940000] NTFS-fs error (device sda): ntfs_fill_super(): Not an NTFS volume.

[17179692.944000] FAT: invalid media value (0xb9)

[17179692.944000] VFS: Can't find a valid FAT filesystem on dev sda.

[17179703.072000] FAT: invalid media value (0xb9)

[17179703.072000] VFS: Can't find a valid FAT filesystem on dev sda.

Any help on this would be great. Thanks!

You could try the following.

Code:

sudo mount -t auto /dev/sda1 /media/usb

You could also try the following to see if there is any useful information when you plug in the drive.

Code:

sudo tail -n 0 -f /var/log/messages

When I do

Quote:

sudo tail -f /var/log/messages

I get the following

Quote:

Apr 3 23:40:06 ubuntu-laptop kernel: [17188935.028000] Type: Direct-Access ANSI SCSI revision: 00
Apr 3 23:40:06 ubuntu-laptop kernel: [17188935.032000] SCSI device sda: 4062208 512-byte hdwr sectors (2080 MB)
Apr 3 23:40:06 ubuntu-laptop kernel: [17188935.032000] sda: Write Protect is off
Apr 3 23:40:06 ubuntu-laptop kernel: [17188935.036000] SCSI device sda: 4062208 512-byte hdwr sectors (2080 MB)
Apr 3 23:40:06 ubuntu-laptop kernel: [17188935.036000] sda: Write Protect is off
Apr 3 23:40:06 ubuntu-laptop kernel: [17188935.036000] sda:
Apr 3 23:40:06 ubuntu-laptop kernel: [17188935.096000] sd 2:0:0:0: Attached scsi removable disk sda
Apr 3 23:40:06 ubuntu-laptop kernel: [17188935.096000] sd 2:0:0:0: Attached scsi generic sg0 type 0
Apr 3 23:40:26 ubuntu-laptop kernel: [17188954.900000] VFS: Can't find a valid FAT filesystem on dev sda.
Apr 3 23:40:43 ubuntu-laptop kernel: [17188971.840000] VFS: Can't find a valid FAT filesystem on dev sda.

Does this mean that my flash drive's file system is screwed? If so, how can I format it if I can't even get it to mount? Any ideas?

Just would like to let you know I fixed the problem. Apparently I needed format my USB device (it lost it's file system somewhere along the line) and everything is working well now.