On Jan 22, 2008 3:26 AM, Robert Cummings <robert@xxxxxxxxxxxxx> wrote:
>
> On Tue, 2008-01-22 at 09:20 +0100, Zoltán Németh wrote:
> > 2008. 01. 22, kedd keltezéssel 03.15-kor Robert Cummings ezt írta:
> > > On Tue, 2008-01-22 at 09:10 +0100, Zoltán Németh wrote:
> > > > 2008. 01. 21, hétfő keltezéssel 20.23-kor shiplu ezt írta:
> > > > > I configured autofs in my fedora so that when I plug any usb stick
> in
> > > > > /dev/sda1 it automatically mounts in /mnt/auto/usb0
> > > > >
> > > > > There is two lines where the problem arise.
> > > > >
> > > > > $util->run_command("ls -1 /mnt/auto/usb0 | wc -l"); // it shows
> 13 when I
> > > > > plug my usb stick.
> > > > > $list = scandir("/mnt/auto/usb0 "); // here $list is null
> > > > >
> > > > > This script is in a php file which is running by apache.
> > > > > the $util object is not actually running the command but it is
> inserting the
> > > > > command in a queue. There is daemon who has root access processing
> the
> > > > > queue.
> > > > > It means the command in $util->run_command() is executing with
> root
> > > > > privilege. this command mounts and get the total amount of
> file/folder very
> > > > > nicely
> > > > > But when I run the second line I see there is no file. How can I
> fill the
> > > > > list with those file list.
> > > > > It may look that the problem is regarding permission. But I don't
> think so.
> > > > > Becasue I use the same command I mean the same 2 lines with
> /mnt/cdrom, and
> > > > > it works very nicely
> > > > >
> > > > > It works,
> > > > > $util->run_command("ls -1 /mnt/cdrom | wc -l"); // it shows 200
> in my CD
> > > > > rom drive
> > > > > $list = scandir("/mnt/cdrom"); // here I get full list of
> files/folders
> > > > >
> > > > > Why its happening?
> > > >
> > > > I'm pretty sure it is because of the permissions on the mounted usb
> > > > stick. for example my ubuntu automounts my usb stick with
> permissions
> > > > 700 and user/group as me. so it would not be accessible by any other
> > > > user, except root. I think that's what happening in your case.
> > > >
> > > > However, I do not know where you can set that up...
> > >
> > > Doesn't the root directory of a mounted partition inherit the
> > > ownership/permissions of the directory upon which it is mounted?
> >
> > not if it is mounted with some umask and permissions and stuff specified
> > for mount, I think.
> > for example in the above case, my /media dir has permissions 755
> > owner/group root/root, but when automount mounts my usb stick
> > in /media/KINGSTON it becomes completely different
>
> The ownership/permissions of /media are not important it's the actual
> mountpoint that is important. In this case "KINGSTON" but that is
> probably being dynamically created. In which case to control the
> ownership/perms it may be necessary to configure the mount manually
> versus relying on automount. I'd be interested to see what happens if he
> creates /mnt/auto/usb0 with appropriate ownership/perms before plugging
> in the device and letting automount mount it.
>
How can I give permission to /mnt/auto/usb0 before accessing.
There is a way to use $util->run_command();
Let me check if $util->run_command("chmod -R 777 /mnt/auto/usb0") gives a
valid array output from
scandir() function.
> Cheers,
> Rob.
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