How to stop mounts on /media when inserting a USB device. (SD, Flash, etc.)
 

Hi group,

I thought I had posted this questions before but I can't find it if I did.

I need to stop my Linux system from mounting USB drives as /media/xxxn. My problem is I am attempting to create a script that I can use to build a file system on an SD card. When I use fdisk and create the partition, the kernel will use the old partition configuration until it is 'ejected' or a system reboot. I can do an 'eject' then I must re-plug the card and then the system does the mounts. I don't want it to do this!

Or is there a way to re-read the partition tables so that I don't need to eject and re-plug?

Thanks for your time.

Take a look at the files in /etc/udev/rules.d/.

You will probably have to configure the UDEV rules.

instead of doing an "eject" just , then you should be able to run fdisk on the device.

You should probably use partprobe. Just install parted, it should come with it.

See:
http://www.cyberciti.biz/tips/re-rea...ux-system.html
http://linux.die.net/man/8/partprobe

Must use eject and not umount
 

The problem is that the old partition map is still in the kernal's memory. So I need to use eject.

That works
 

I tried using parted and that works better but it still mounts the file systems if the partition table has changed.

It does modify the kernel's partition table.

Thanks.

hdparm -z allows forces kernel to re-read partition table of drive. Not sure if it can be used on usb drives.

for me a combination of umount /media/XXX and partprobe does the trick.

This depends largely on what is performing the automount. Many distros set up the desktop environment to perform the automount, in which case, you would need to find the setting in that environment to disable automounting. Some use backend scripts to perform the mount (ie, I've use a combination of udev,pmount, and kludges to make things work my way before).

What distro and what desktop environment are you using?

Well I am currently using Fedora Core 8 and Gnome, but I am looking for a universal fix. Have not tried at init 3 level.

Yes, that does work. But it still does the mount.

Do I really have to do the googling for you? ... :tisk:
Anyway: http://www.google.com/search?q=ubunt...vent+automount

Here are good clues:
http://ubuntuforums.org/showthread.php?t=13692

And this one is good too:

[SOLVED] It is a Gnome thing on my system
 

Thanks for all of your responses. The one that I found useful was:

System->Preferences->Hardware->Removable Devices
Then disable the first two lines in the Stoarge sections:

Mount removable drives
Mount removable media

Thanks again for your time.

I hate FC10, what a POS!
 

This option is not available in FC10, along with a lot of other stuff that used to be there!

durned fedora 10