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Re: 8 GB Flash drive formatted at 3.7 GB



Aaron Konstam wrote:
On Fri, 2009-12-18 at 23:25 -0600, Robert G. (Doc) Savage wrote:
On Fri, 2009-12-18 at 21:58 -0500, Marcel Rieux wrote:
On Fri, Dec 18, 2009 at 6:01 PM, Mikkel <mikkel infinity-ltd com> wrote:
On 12/18/2009 01:59 PM, Marcel Rieux wrote:
I have a Kingston Data Traveler 8GB Flash drive that was previously
formatted FAT32. I reformatted it ext3 simply by clicking on the icon
and choosing "Format", but it still has only 3.7 GB available.

Any way around this?

You reformatted the existing partition. So it is the same size as
the FAT32 partition. If you want to use the entire drive, you will
need to re-partition it. You will probably want to use gparted for
this. You have the choice of creating a second partition, expanding
the existing partition to use the full drive, or deleting the
current partition, and creating a new one.
Ar first sight, your suggestion made a lot of sense but I checked the
drive with gparted and it sees only one partition.

See: http://cjoint.com/data/mtd0lzbfUF.htm

Thanks for your answer!
Mikkel,

Have you tried looking at your drive with good ol' fdisk at a root
command prompt? If your Kingston is like my Vebatim, the output should
look much like this:

# fdisk -l /dev/sdb

Disk /dev/sdb: 8086 MB, 8086618112 bytes
249 heads, 62 sectors/track, 1023 cylinders
Units = cylinders of 15438 * 512 = 7904256 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *           1        1023     7896506   83  Linux

The key part to look for is the "8086 MB". If your 8 GB thumb drive only
shows something like 3.7 GB under fdisk, it's borked up internally and
you're done.
I thing borked is too pessimistic an analysis. There is a 4GB area on
the pen ddrive that is not partitioned nor is it formatted in any way,
according to fdisk. I wold just ignore the 4GB area and don;r worry
about it.

I don't know what you think you see here:
  Disk /dev/sdb: 4045 MB, 4045930496 bytes
  120 heads, 55 sectors/track, 1197 cylinders
  Units = cylinders of 6600 * 512 = 3379200 bytes
  Disk identifier: 0x04030201

     Device Boot      Start         End      Blocks   Id  System
  /dev/sdb1               1        1198     3951100    b  W95 FAT32

But the total size (see first line) is 4GB, and it is all in the partition (see last line). I have no idea what 4GB you think you see that isn't partitioned, and fdisk only allows you to see the partition table, not if an area is "formatted in any way" since the contents of partitions or non-partition areas of the drive are not examined.

I like fdisk, it isn't very smart and doesn't pretend to be, what it does it does correctly.

Other than looking at the /var/log/messages for an HPA message, I would say this is a 4GB drive.

--
Bill Davidsen <davidsen tmr com>
  "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot


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