RUN

RUN

[Adam Kane]

Hi list,

Is it possible to use more than one RUN+= statement in a udev line, or 
execute more than one thing?  I am wanting to execute more than one 
thing upon my usb key being plugged in.

Here is what I have in udev.rules

BUS="scsi", SYSFS{model}="USB2FlashStorage", SYMLINK="usbdrive", 
RUN+="/bin/mount /dev/usbdrive"

The RUN+ statement is mounting the drive to /media/usbdrive, as 
specified in the /etc/fstab.  I would like to to also run "/bin/sh 
/media/usbdrive/test.sh"

I have tried the following with no success:

BUS="scsi", SYSFS{model}="USB2FlashStorage", SYMLINK="usbdrive", 
RUN+="/bin/mount /dev/usbdrive ; /bin/sh /media/usbdrive/test.sh"


BUS="scsi", SYSFS{model}="USB2FlashStorage", SYMLINK="usbdrive", 
RUN+="/bin/mount /dev/usbdrive && /bin/sh /media/usbdrive/test.sh"


BUS="scsi", SYSFS{model}="USB2FlashStorage", SYMLINK="usbdrive", 
RUN+="/bin/mount /dev/usbdrive", RUN+="/bin/sh /media/usbdrive/test.sh"


Hope this makes sense.

Thanks in advance,

Adam Kane

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Re: RUN

[Bauke Jan Douma]

Adam Kane wrote on 10-07-07 22:32:
> Hi list,
> 
> Is it possible to use more than one RUN+= statement in a udev line, or 
> execute more than one thing?  I am wanting to execute more than one 
> thing upon my usb key being plugged in.
> 
> Here is what I have in udev.rules
> 
> BUS="scsi", SYSFS{model}="USB2FlashStorage", SYMLINK="usbdrive", 
> RUN+="/bin/mount /dev/usbdrive"
> 
> The RUN+ statement is mounting the drive to /media/usbdrive, as 
> specified in the /etc/fstab.  I would like to to also run "/bin/sh 
> /media/usbdrive/test.sh"
> 
> I have tried the following with no success:
> 
> BUS="scsi", SYSFS{model}="USB2FlashStorage", SYMLINK="usbdrive", 
> RUN+="/bin/mount /dev/usbdrive ; /bin/sh /media/usbdrive/test.sh"
> 
> 
> BUS="scsi", SYSFS{model}="USB2FlashStorage", SYMLINK="usbdrive", 
> RUN+="/bin/mount /dev/usbdrive && /bin/sh /media/usbdrive/test.sh"
> 
> 
> BUS="scsi", SYSFS{model}="USB2FlashStorage", SYMLINK="usbdrive", 
> RUN+="/bin/mount /dev/usbdrive", RUN+="/bin/sh /media/usbdrive/test.sh"

Something like RUN+="eval bin/mount /dev/usbdrive"; /media/usbdrive/test.sh"?
Or put all commands in one script and run that:
RUN+="mount_and_test.sh"


> Adam Kane

bjd


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Re: RUN

[Adam Kane]

Using  the ; separator will not work.  I tried adding eval, and still no 
luck.

Putting the commands in one script is not feasible as I do not want the 
script to reside on the machine, instead on the thumb drive.  Does that 
make sense?

Adam

Bauke Jan Douma wrote:
> Adam Kane wrote on 10-07-07 22:32:
>> Hi list,
>>
>> Is it possible to use more than one RUN+= statement in a udev line, 
>> or execute more than one thing?  I am wanting to execute more than 
>> one thing upon my usb key being plugged in.
>>
>> Here is what I have in udev.rules
>>
>> BUS="scsi", SYSFS{model}="USB2FlashStorage", SYMLINK="usbdrive", 
>> RUN+="/bin/mount /dev/usbdrive"
>>
>> The RUN+ statement is mounting the drive to /media/usbdrive, as 
>> specified in the /etc/fstab.  I would like to to also run "/bin/sh 
>> /media/usbdrive/test.sh"
>>
>> I have tried the following with no success:
>>
>> BUS="scsi", SYSFS{model}="USB2FlashStorage", SYMLINK="usbdrive", 
>> RUN+="/bin/mount /dev/usbdrive ; /bin/sh /media/usbdrive/test.sh"
>>
>>
>> BUS="scsi", SYSFS{model}="USB2FlashStorage", SYMLINK="usbdrive", 
>> RUN+="/bin/mount /dev/usbdrive && /bin/sh /media/usbdrive/test.sh"
>>
>>
>> BUS="scsi", SYSFS{model}="USB2FlashStorage", SYMLINK="usbdrive", 
>> RUN+="/bin/mount /dev/usbdrive", RUN+="/bin/sh /media/usbdrive/test.sh"
>
> Something like RUN+="eval bin/mount /dev/usbdrive"; 
> /media/usbdrive/test.sh"?
> Or put all commands in one script and run that:
> RUN+="mount_and_test.sh"
>
>
>> Adam Kane
>
> bjd
>

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Re: RUN

[Kay Sievers]

On 7/11/07, Adam Kane <adamk@inguin.com> wrote:
> Using  the ; separator will not work.  I tried adding eval, and still no
> luck.
>
> Putting the commands in one script is not feasible as I do not want the
> script to reside on the machine, instead on the thumb drive.  Does that
> make sense?
>
> Adam
>
> Bauke Jan Douma wrote:
> > Adam Kane wrote on 10-07-07 22:32:
> >> Hi list,
> >>
> >> Is it possible to use more than one RUN+= statement in a udev line,
> >> or execute more than one thing?  I am wanting to execute more than
> >> one thing upon my usb key being plugged in.
> >>
> >> Here is what I have in udev.rules
> >>
> >> BUS="scsi", SYSFS{model}="USB2FlashStorage", SYMLINK="usbdrive",
> >> RUN+="/bin/mount /dev/usbdrive"
> >>
> >> The RUN+ statement is mounting the drive to /media/usbdrive, as
> >> specified in the /etc/fstab.  I would like to to also run "/bin/sh
> >> /media/usbdrive/test.sh"
> >>
> >> I have tried the following with no success:
> >>
> >> BUS="scsi", SYSFS{model}="USB2FlashStorage", SYMLINK="usbdrive",
> >> RUN+="/bin/mount /dev/usbdrive ; /bin/sh /media/usbdrive/test.sh"
> >>
> >>
> >> BUS="scsi", SYSFS{model}="USB2FlashStorage", SYMLINK="usbdrive",
> >> RUN+="/bin/mount /dev/usbdrive && /bin/sh /media/usbdrive/test.sh"
> >>
> >>
> >> BUS="scsi", SYSFS{model}="USB2FlashStorage", SYMLINK="usbdrive",
> >> RUN+="/bin/mount /dev/usbdrive", RUN+="/bin/sh /media/usbdrive/test.sh"
> >
> > Something like RUN+="eval bin/mount /dev/usbdrive";
> > /media/usbdrive/test.sh"?
> > Or put all commands in one script and run that:
> > RUN+="mount_and_test.sh"

Today you can have only one RUN key, it will change some day, but I
never got to finish the smarter rule parsing which will allow any
number of keys in a rule.

You need to do:
   RUN+="/bin/sh -c '/program1; /program2'"
for now.

Kay

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Re: RUN

[Richard Michael]

> Today you can have only one RUN key, it will change some day, but I
> never got to finish the smarter rule parsing which will allow any
> number of keys in a rule.
> 
> You need to do:
>    RUN+="/bin/sh -c '/program1; /program2'"
> for now.

I have misunderstood either the poster's question or the paragraph in
"man udev" discussing the RUN key:

----excerpt----
RUN

  Add a program to the list of programs to be executed for a specific
device. This can only be used for very short running tasks.  Running an
event process for a long period of time may block all further events for
this or a dependent device. Long running tasks need to be immediately
detached from the event process itself.

----excerpt----

For example, this works:

SUBSYSTEM="*", RUN+="/root/udev-catch-remove"
ENV{DEVNAME}="/dev/foobar", RUN+="/path/to/prog"

Is this only working because the match keys are different?

Regards,
Richard

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Re: RUN

[Kay Sievers]

On Tue, 2007-07-10 at 20:59 -0400, Richard Michael wrote:
> > Today you can have only one RUN key, it will change some day, but I
> > never got to finish the smarter rule parsing which will allow any
> > number of keys in a rule.
> > 
> > You need to do:
> >    RUN+="/bin/sh -c '/program1; /program2'"
> > for now.
> 
> I have misunderstood either the poster's question or the paragraph in
> "man udev" discussing the RUN key:
> 
> ----excerpt----
> RUN
> 
>   Add a program to the list of programs to be executed for a specific
> device. This can only be used for very short running tasks.  Running an
> event process for a long period of time may block all further events for
> this or a dependent device. Long running tasks need to be immediately
> detached from the event process itself.
> 
> ----excerpt----
> 
> For example, this works:
> 
> SUBSYSTEM="*", RUN+="/root/udev-catch-remove"
> ENV{DEVNAME}="/dev/foobar", RUN+="/path/to/prog"
> 
> Is this only working because the match keys are different?

These are two rules with independent RUN keys, right?

The first on runs for _every_ event as the SUBSYSTEM match doesn't do
anything. The second may run when the env matches, but $DEVNAME is
usually not available at the time of rule processing. You can have any
number of rules with _one_ RUN key per rule and they will all be
executed.

The question was how to run two programs from a _single_ rule. The
obvious solution would be to specify two RUN keys, but that doesn't work
with todays in-memory rule presentation. It will change when I find the
time to work on that.

Thanks,
Kay


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Re: RUN

[Bryan Kadzban]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: RIPEMD160

Kay Sievers wrote:
> The question was how to run two programs from a _single_ rule.

Would duplicate rules (with the same criteria) work?  I.e., something
like:

BUS="scsi", ATTRS{model}="USB2FlashStorage", SYMLINK+="usbdrive",
RUN+="/bin/mount /dev/usbdrive"
BUS="scsi", ATTRS{model}="USB2FlashStorage", RUN+="/bin/sh
/media/usbdrive/test.sh"

(Where I've fixed the keys to match what udev >= 098 expects.)

Assuming these fire in the same order as they're in the rules file (and
multiple rules are allowed to have the same criteria), it should work
for what Adam needs (I think).
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Re: RUN

[Scott James Remnant]

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On Tue, 2007-07-10 at 22:11 -0400, Bryan Kadzban wrote:

> Kay Sievers wrote:
> > The question was how to run two programs from a _single_ rule.
> 
> Would duplicate rules (with the same criteria) work?  I.e., something
> like:
> 
> BUS=="scsi", ATTRS{model}=="USB2FlashStorage", SYMLINK+="usbdrive",
> RUN+="/bin/mount /dev/usbdrive"
> BUS=="scsi", ATTRS{model}=="USB2FlashStorage", RUN+="/bin/sh
> /media/usbdrive/test.sh"
> 
> (Where I've fixed the keys to match what udev >= 098 expects.)
> 
You could also use a GOTO/LABEL combination

BUS!="scsi", GOTO="usbdrive_end"
ATTRS{model}!="USB2FlashStorage", GOTO="usbdrive_end"

SYMLINK+="usbdrive"
RUN+="/bin/mount /dev/usbdrive"
RUN+="/bin/sh /media/usbdrive/test.sh"

LABEL="usbdrive_end"

Scott
-- 
Scott James Remnant
Ubuntu Development Manager
scott@ubuntu.com

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Re: RUN

[Richard Michael]

> You can have any number of rules with _one_ RUN key per rule and they
> will all be executed.
> 
> The question was how to run two programs from a _single_ rule. The
> obvious solution would be to specify two RUN keys, but that doesn't
> work with todays in-memory rule presentation. It will change when I
> find the time to work on that.

That clarifies it, thanks.

Perhaps the man page could indicate:

RUN

  If more than one program must be run for an event, a rule with one RUN
key must be written for each program.  For example, to run three
programs, write three rules with identical match keys, each running one
of the three programs.

Does that decribe the situation accurately?

Richard

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Re: RUN

[Adam Kane]

Kay Sievers wrote:
> On 7/11/07, Adam Kane <adamk@inguin.com> wrote:
>> Using  the ; separator will not work.  I tried adding eval, and still no
>> luck.
>>
>> Putting the commands in one script is not feasible as I do not want the
>> script to reside on the machine, instead on the thumb drive.  Does that
>> make sense?
>>
>> Adam
>>
>> Bauke Jan Douma wrote:
>> > Adam Kane wrote on 10-07-07 22:32:
>> >> Hi list,
>> >>
>> >> Is it possible to use more than one RUN+= statement in a udev line,
>> >> or execute more than one thing?  I am wanting to execute more than
>> >> one thing upon my usb key being plugged in.
>> >>
>> >> Here is what I have in udev.rules
>> >>
>> >> BUS="scsi", SYSFS{model}="USB2FlashStorage", SYMLINK="usbdrive",
>> >> RUN+="/bin/mount /dev/usbdrive"
>> >>
>> >> The RUN+ statement is mounting the drive to /media/usbdrive, as
>> >> specified in the /etc/fstab.  I would like to to also run "/bin/sh
>> >> /media/usbdrive/test.sh"
>> >>
>> >> I have tried the following with no success:
>> >>
>> >> BUS="scsi", SYSFS{model}="USB2FlashStorage", SYMLINK="usbdrive",
>> >> RUN+="/bin/mount /dev/usbdrive ; /bin/sh /media/usbdrive/test.sh"
>> >>
>> >>
>> >> BUS="scsi", SYSFS{model}="USB2FlashStorage", SYMLINK="usbdrive",
>> >> RUN+="/bin/mount /dev/usbdrive && /bin/sh /media/usbdrive/test.sh"
>> >>
>> >>
>> >> BUS="scsi", SYSFS{model}="USB2FlashStorage", SYMLINK="usbdrive",
>> >> RUN+="/bin/mount /dev/usbdrive", RUN+="/bin/sh 
>> /media/usbdrive/test.sh"
>> >
>> > Something like RUN+="eval bin/mount /dev/usbdrive";
>> > /media/usbdrive/test.sh"?
>> > Or put all commands in one script and run that:
>> > RUN+="mount_and_test.sh"
>
> Today you can have only one RUN key, it will change some day, but I
> never got to finish the smarter rule parsing which will allow any
> number of keys in a rule.
>
> You need to do:
>   RUN+="/bin/sh -c '/program1; /program2'"
> for now.
>
> Kay
Thank you Kay, this solution has proved viable.

Adam

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