[CLUE-Tech] Mounting LEXAR Jumpdrive

[Kevin Cullis]

In one of the oldest aspects of Linux which sometimes the gurus don't
say is when a "device is busy" it normally means you're in that
directory/drive and causes it to be "busy"  Just get out of the
directory/drive then unmount it. It took me a while to figure it out,
but then it was after a number of tries and not knowing what I did to
fix it and nothing in Linux documentation that explained it either.

HTH

Kevin

On Wed, 2003-12-03 at 09:52, R. Savage 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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