[CLUE-Tech] Mounting LEXAR Jumpdrive

[Match Grun]

I have been using the Lexar Jumpdrive for several months. Here is my
fstab entry on my desktop:

	/dev/sda1  /mnt/jumpdrive  vfat  noatime  0 0

And on my laptop:

	/dev/sdb1  /mnt/jumpdrive  vfat  noauto,user,rw  0 0

My laptop used to be sda1 with the original RH9 kernel. Since I upgraded
to 2.4.22, I had to change to sdb1.

I should really supply noatime on the laptop. This prevents a write
operation to the flash memory on file access (see Linux Journal,
December 2003, for details of this).

Remember, that these devices are vfat and no ext2/3 formats. That may be
your problem.

Match


On Wed, 03 Dec 2003 09:52:48 -0700
"R. Savage" <71OEsAV71 at estreet.com> wrote:

> I'm using RedHat Dist 9.0, Shrike, on a couple of 200 MHz Pentium I 
> computers. In order to transfer files (and also backup files), I have
> a couple of LEXAR 64 MB Jumpdrives, mounted in USB 1.1 extension hubs
> (so I don't have to crawl under the desk to insert and remove).
> 
> The jumpdrives mount cleanly when needed with the "mount" command
> (mount -t ext2 /dev/sda1 /mnt/LEXAR); they are not automounted from
> fstab, since I need them only occasionally. I login as root most of
> the time.
> 
> The problem is, after saving files to the jumpdrive, the "unmount" 
> command (umount /dev/LEXAR) doesn't work. I get the "device is busy" 
> response. Switching to other directories doesn't help; /dev/LEXAR
> stays "busy". The only solution seems to be to shutdown and restart -
> a minor inconvenience for the safety/backup involved. But it bothers
> me that I don't understand this behavior, and my status as "root"
> seems ill-defined. Can someone tell me what I'm doing wrong? Is this
> just normal behavior for a block memory device after mounting?
> 
> Thanks.
> 
> Dick Savage
> Franktown 
> 
> 
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