Cannot remove flash memory

[Rutger van Haasteren]

According to the eject manual, if a device is still mounted, it will be
unmounted before ejecting. So eject is more appropriate than unmount before
removing a usb disc, since you want to detach it from your system. Qoute
from man eject:

"Eject - eject removable media
...
If the device is currently mounted, it is unmounted before ejecting."

For myself, I never had problems with it. Maybe your permissions are not set
right in /etc/fstab?
People with an iPod can check that it doesn't stop recharging after umount,
but it does after an eject.

Cheers,

Rutger

On 11/30/06, Peter Garrett <peter.garrett at optusnet.com.au> wrote:
>
> On Thu, 30 Nov 2006 10:46:05 +0000
> norman <norman at littletank.org> wrote:
>
> >
> > > > I'm not quite sure what the light means, but I ignore it, and
> haven't
> > > > had any problems whatsoever yet. I'm using gnome as opposed to kde,
> but
> > > > I doubt that makes any difference. So, I just make sure the device
> is
> > > > not mounted and then pull it off.
> > >
> > > It means the same as the flashing light on the front of most PCs.  The
> > > drive is in use. If you remove it when the light is on you may lose or
> > > corrupt data.  The whole purpose of the light is to tell you that
> there
> > > the memory is being written to or read from.
> >
> > I cannot believe that. It is now 15 minutes since I pressed eject and
> > the light is still flashing. Unless, of course, eject is not the same as
> > unmount.
>
> Try this sequence ( the device in this case is /dev/sda1 )
>
>                                $ pumount /dev/sda1
>
> Comment: OK, no errors so it is unmounted now...
>
> peter at prospero:~ $ pmount /dev/sda1
>
> Comment: No errors, so now it's mounted again.
>
> So, with the "stick" still plugged in, the system still "knows" it is
> there after the "pumount" command , but ...
>
> peter at prospero:~ $ eject /dev/sda1
> peter at prospero:~ $ pmount /dev/sda1
> Error: device /dev/sda1 does not exist
>
> ... after "eject", the system has total amnesia about it ;-)
>
> That's a /highly technical explanation/ of the difference, I know   *grin*
>
> Peter
>
>
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