Re: (u)mounting of USB devices
On Tuesday 20 December 2005 15:19, Michelle Konzack wrote:
> Hello *,
>
> because I have not found a suitable answer on other mailing lists I try
> it here. :-)
>
> I have:
>
> A desktop which MUST run WITHOUT GNOME and KDE. There is only fvwm and
> some programs, because it is used in Enterprises and some schools.
>
> I mount USB devices with wmmount and:
>
> __( '/home/michelle.konzack/.wmmount' )_____________________________
> /
>
> | mountcmd=/bin/mount %m
> | umountcmd=/bin/umount %m
> |
> | opencmd=/usr/X11R6/bin/xterm -fn 10x20 -e mc %m ~/
> |
> | namecolor=red
> | namefont=-*-helvetica-medium-r-*-*-10-*-*-*-*-*-*-*
> |
> | usagecolor=blue
> | usagefont=-*-helvetica-medium-r-*-*-10-*-*-*-*-*-*-*
> |
> | ledcolor=red
> |
> | icon /usr/share/wmmount/blank.xpm
> | icon /usr/share/wmmount/cdrom.xpm
> | icon /usr/share/wmmount/floppy.xpm
> | icon /usr/share/wmmount/harddisk.xpm
> | icon /usr/share/wmmount/zip.xpm
> |
> | mountpoint /media/usbkey
> | name=USB
> | iconnumber=0
> | usagedisplay=1
> |
> | mountpoint /media/usbreader/cf
> | name=CompactFlash
> | iconnumber=0
> | usagedisplay=1
> |
> | mountpoint /media/usbreader/sd
> | name=SecureDigital
> | iconnumber=0
> | usagedisplay=1
> |
> | mountpoint /media/usbreader/sm
> | name=SmartMedia
> | iconnumber=0
> | usagedisplay=1
> |
> | mountpoint /media/usbreader/ms
> | name=MemoryStick
> | iconnumber=0
> | usagedisplay=1
> |
> | mountpoint /dev/fd0u1680
> | name=Floppy
> | iconnumber=2
> | usagedisplay=1
> |
> | mountpoint /media/cdrom
> | name=CD-Rom
> | iconnumber=1
> | usagedisplay=1
> |
> | mountpoint /zip
> | name=ZIP-Drive
> | iconnumber=4
> | usagedisplay=1
> |
> | mountpoint /dev/fd0u1440
> | name=fd0u1440
> | iconnumber=2
> | usagedisplay=1
>
> \____________________________________________________________________
>
> and
>
> __( '/home/Misc/FLOPPY/etc/fstab' )_________________________________
> /
>
> | /dev/hdc /media/cdrom iso9660 noauto,user,ro 0 0
> | /dev/hdd1 /media/zip auto noauto,user 0 0
> | /dev/fd0u1680 /media/floppy auto noauto,user 0 0
> | /dev/fd0u1440 /media/floppy auto noauto,user 0 0
> |
> | /dev/sda1 /media/usbreader/cf auto noauto,user 0 0
> | /dev/sdb1 /media/usbreader/sd auto noauto,user 0 0
> | /dev/sdc1 /media/usbreader/sm auto noauto,user 0 0
> | /dev/sdd1 /media/usbreader/ms auto noauto,user 0 0
> |
> | /dev/sde1 /media/usbkey auto noauto,user 0 0
>
> \____________________________________________________________________
>
> Now my problem:
>
> If we connect an USB key (e.g. IBM 256 MB) to the external USB Port and
> mount it while clicking on the "name" USB1 it will be mounted correctly.
>
> Now we umount and put an other USB Key (e.g. Emprex 128 MB) in, and we
> can not mount anymore because the NEW USB key is detected on /dev/sdf1.
>
> Question: How can this problem solved? Is there a switch to
> disable this kernel-module memory effect?
>
> We can only remount on /dev/sde1 if we unload and reload
> the module usb-storage.
>
This looks like a job for udev, which can assign meaningful names to
USB storage devices.
Why it should not free up /dev/sde1 when you unmount it I do not know,
I have never seen that problem here and I am forever using USB storage
devices of a variety of types. Have you looked at /var/log/syslog to see
if there are any errors being shown?
David
> Note: I have already coded a small BASH script which check all 5
> seconds if /dev/sde1 is mounted and if not, it unload the
> usb-storage module and reload it. But this is consuming
> unnecesary resources.
>
>
> Thanks for your Help
> Michelle
>
> --
> Linux-User #280138 with the Linux Counter, http://counter.li.org/
> ##################### Debian GNU/Linux Consultant #####################
> Michelle Konzack Apt. 917 ICQ #328449886
> 50, rue de Soultz MSM LinuxMichi
> 0033/3/88452356 67100 Strasbourg/France IRC #Debian (irc.icq.com)
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