trying to add a rule for USB external CD - a newbie

trying to add a rule for USB external CD - a newbie

[Ian Brown]

Hello,
 I am trying to add a rule for USB external CD  for udev;
this device uses scsi emulation; it;s device file is /dev/sr0

so I went to /etc/udev/rules.d and edited 50-udev.rules:
I added in the end this line:
KERNEL="sr[0-9]*", BUS="scsi", PROGRAM="/etc/udev/scripts/mount-cdrom.sh"

where mount-cdrom.sh has 2 lines :
echo "in mount-cdrom" >> /etc/udev/mountcdrom.log
mount /dev/sr0 /mnt/extcd
I restared udev (by /sbin/start_udev).

I  disconented the USB cdrom and connected it again.

I see that the cdrom is not mounted; On the other hand I see that we do create
the mount_cdrom log file.

What am I doing wrong?
Any idea?

Regards,
IB


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Re: trying to add a rule for USB external CD - a newbie

[Kay Sievers]

On Sun, Mar 26, 2006 at 06:17:01PM +0200, Ian Brown wrote:
> Hello,
>  I am trying to add a rule for USB external CD  for udev;
> this device uses scsi emulation; it;s device file is /dev/sr0
> 
> so I went to /etc/udev/rules.d and edited 50-udev.rules:
> I added in the end this line:
> KERNEL="sr[0-9]*", BUS="scsi", PROGRAM="/etc/udev/scripts/mount-cdrom.sh"
> 
> where mount-cdrom.sh has 2 lines :
> echo "in mount-cdrom" >> /etc/udev/mountcdrom.log
> mount /dev/sr0 /mnt/extcd
> I restared udev (by /sbin/start_udev).
> 
> I  disconented the USB cdrom and connected it again.
> 
> I see that the cdrom is not mounted; On the other hand I see that we do create
> the mount_cdrom log file.
> 
> What am I doing wrong?

Use RUN+=, at the time PROGRAM runs you don't have a device node.
And use "=" if you compare values.

Kay


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Re: trying to add a rule for USB external CD - a newbie

[Ian Brown]

Hello,
Thanks!
I had changed that line to:
KERNEL="sr[0-9]*", BUS="scsi", RUN+="/etc/udev/scripts/mount-cdrom.sh"

I am pulling the USB CD-ROM plug and pushing it again, and I
am getting:

 udev[21873]: parse error /etc/udev/rules.d/50-udev.rules, line 122:0,
rule skipped

Any idea?

Regards,
IB

On 3/26/06, Kay Sievers <kay.sievers@vrfy.org> wrote:
> On Sun, Mar 26, 2006 at 06:17:01PM +0200, Ian Brown wrote:
> > Hello,
> >  I am trying to add a rule for USB external CD  for udev;
> > this device uses scsi emulation; it;s device file is /dev/sr0
> >
> > so I went to /etc/udev/rules.d and edited 50-udev.rules:
> > I added in the end this line:
> > KERNEL="sr[0-9]*", BUS="scsi", PROGRAM="/etc/udev/scripts/mount-cdrom.sh"
> >
> > where mount-cdrom.sh has 2 lines :
> > echo "in mount-cdrom" >> /etc/udev/mountcdrom.log
> > mount /dev/sr0 /mnt/extcd
> > I restared udev (by /sbin/start_udev).
> >
> > I  disconented the USB cdrom and connected it again.
> >
> > I see that the cdrom is not mounted; On the other hand I see that we do create
> > the mount_cdrom log file.
> >
> > What am I doing wrong?
>
> Use RUN+=, at the time PROGRAM runs you don't have a device node.
> And use "=" if you compare values.
>
> Kay
>


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Re: trying to add a rule for USB external CD - a newbie

[Kay Sievers]

On Mon, Mar 27, 2006 at 09:09:27AM +0200, Ian Brown wrote:
> Hello,
> Thanks!
> I had changed that line to:
> KERNEL="sr[0-9]*", BUS="scsi", RUN+="/etc/udev/scripts/mount-cdrom.sh"
> 
> I am pulling the USB CD-ROM plug and pushing it again, and I
> am getting:
> 
>  udev[21873]: parse error /etc/udev/rules.d/50-udev.rules, line 122:0,
> rule skipped

What version of udev is that?

Kay


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