Re: add/remove actions for usb devices

[Florian Iragne <florian.iragne@labri.fr>]

Patrick Mansfield wrote:
> On Mon, Mar 29, 2004 at 06:21:00PM +0200, Florian Iragne wrote:
> 
> 
>>on device add, it is correctly mounted. on device removal, the system 
>>freeze and i have to use magic keys to reboot the machine. I've enabled 
>>kernel verbose debug messgaes and other stuffs like this, but can't get 
>>any error message.
>>
>>does anyboddy have an idea to solve this problem? (unfortunately, i 
>>can't install udev from sources currently, so i can't activate its debug 
>>mode, or maybe it's possible through a configuration file?)
> 
> 
> The umount is likely hanging. This is probably a file system feature.
> 
> Try without your udev rule - unplug the device and then umount it.
> 
> -- Patrick Mansfield
ok, it's a file system failure, but why?

unplugging the device and then umount it "by hand", or umount the device 
  automatically when it's unplugged, what is the difference? if i make 
umount /dev/myDevice, i believe mount will told me there is a problem, 
but i make "umount /path/to/the/montpoint", which is perfectly right and 
works "by hand" but not automatically with the udev remove event.

I just can't says to users : well, ok, when you unplug your usb stick, 
type umount /home/yourUser/usbStick. I have a working script that does 
just what i want, but it's heavy and not so clean regarding the logical 
behaviour of the system. udev and hotplug have the possibilities i'm 
looking for, so i want to use them.

thanks for helping!

Florian


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