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Pascal wrote:
> Le Mardi 30 Septembre 2003 19:23, Buchan Milne a �crit :
>
>>Pascal Cavy wrote:
>>
>>>The following scenario is implemented in cooker :
>>>
>>>1. connect an usb storage device to usb port
>>>
>>>2. dynamic creates an entry in /etc/fstab with supermount option - an
>>
>>icon appears on kde for the device
>>
>>
>>>none /mnt/removable supermount
>>
>>dev=/dev/sda1,fs=ext2:vfat,--,codepage=850,iocharset=iso8859-15,kudzu 0 0
>>
>>I was under the impression supemount wasn't used, but the 'user' option
>>was, like this:
>>/dev/sda1 /mnt/removable auto
>>user,iocharset=iso8859-15,noauto,kudzu,exec,codepage=850 0 0
>>
>>Maybe you booted up with one attached, and harddrake configured it?
>>
>>
>>>3. click on this icon to access the usb storage filesystem
>>
>>Yes, and something mounts it for you (ie KDE).
>>
>>
>>>4. How do I disconnect cleanly this device from the desktop now that is
>>>automatically mounted ?
>>>I cannot unmount it from the kde icon since the user option is not in
>>
>>/etc/fstab
>>
>>Right-click-unmount, or 'unmount /mnt/removable'.
>>
>>That is, unless something has changed ...
>
>
> This is not possible as only root can do it if the 'user' option is not
> specified in the fstab.
See the one I posted above which was created on my machine on insertion
of a USB flash disk, you will note it *does* have the user option.
>
> Let's clarify the test:
> 1. disconnect the USBSD (usb storage device)
I booted my cooker box without any USB device connected
> 2. remove any entry referencing it in the fstab
[EMAIL PROTECTED] bgmilne]$ grep sda /etc/fstab
(no entry for sda* in fstab)
> 3. connect the USBSD
Connected it here.
> 4. NOTHING is dynamically created in the fstab *******
An entry is added for me:
[EMAIL PROTECTED] bgmilne$ grep sda /etc/fstab
/dev/sda1 /mnt/removable auto
user,noauto,iocharset=iso8859-15,exec,kudzu,codepage=850 0 0
(note the user option is present)
[EMAIL PROTECTED] bgmilne]$ mount /mnt/removable/
[EMAIL PROTECTED] bgmilne]$ df /mnt/removable/
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/scsi/host0/bus0/target0/lun0/part1
64096 31130 32966 49% /mnt/removable
[EMAIL PROTECTED] bgmilne]$ umount /mnt/removable
> 5. run harddrake2
I don't have the harddrake package installed, and it is missing on my
local mirror.
> 6. look at the fstab :
> none /mnt/hd supermount
> dev=/dev/sdb1,fs=ext2:vfat,--,kudzu,codepage=850,iocharset=iso8859-15 0 0
>
> this is not correct for 2 reasons:
> a. only root can unmount it (so if a desktop icon is associated with this
> entry it cannot be used to unmount the USBSD FS)
> b. since it is a supermount entry for a removable writable device, writes
> should be synchronous, thus the sync option is missing or you can
loose data
> on disconnect
Or you need to run:
$ sync
>
> There is a conflict between hotplug and harddrake somewhere ...
> hotplug should create a fstab entry upon connect and remove it upon
> disconnect.
> harddrake should not interfere with this.
So what happens if you have an external USB storage device connected
permanently to your machine? Should you have to unplug and replug it to
be able to use it?
>
> Am I wrong somewhere ?
>
Your hotplug is broken.
AFAIK, hotplug can't detect the removal of USB storage devices, so my
fstab entry for it stays until the next boot (AFAICT).
Regards,
Buchan
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