RUN · kernelthread

Adam Kane

author

2007-07-10 20:32 UTC #0 lore raw

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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Bauke Jan Douma

2007-07-10 22:01 UTC #1 lore raw

Adam Kane wrote on 10-07-07 22:32:

Quoted 21 lines

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"

Quoted 6 lines

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"

Quoted 1 line

Adam Kane

bjd

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Adam Kane

author

2007-07-10 22:08 UTC #2 lore raw

In reply to 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

Quoted 35 lines · Bauke Jan Douma

Adam Kane wrote on 10-07-07 22:32:
Quoted 21 lines
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"
Quoted 6 lines
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"

Quoted 4 lines

Quoted 1 line
Adam Kane
bjd

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Kay Sievers

2007-07-11 00:04 UTC #3 lore raw

In reply to Adam Kane

Quoted 43 lines · 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
Quoted 33 lines · Bauke Jan Douma
Adam Kane wrote on 10-07-07 22:32:
Quoted 21 lines
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"
Quoted 6 lines
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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Richard Michael

2007-07-11 00:59 UTC #4 lore raw

In reply to Adam Kane

Quoted 7 lines

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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Kay Sievers

2007-07-11 01:08 UTC #5 lore raw

In reply to Adam Kane

Quoted 20 lines · Richard Michael

Quoted 7 lines
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.

Quoted 8 lines

----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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Bryan Kadzban

2007-07-11 02:11 UTC #6 lore raw

In reply to Adam Kane

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

Quoted 1 line · Kay Sievers

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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Scott James Remnant

2007-07-11 08:36 UTC #7 lore raw

In reply to Adam Kane

Quoted 6 lines · Bryan Kadzban

Quoted 1 line · Kay Sievers
The question was how to run two programs from a _single_ rule.
Would duplicate rules (with the same criteria) work? I.e., something like:

Quoted 7 lines

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

Signature · 3 lines

Scott James Remnant
Ubuntu Development Manager
[email protected]

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Richard Michael

2007-07-11 13:12 UTC #8 lore raw

In reply to Adam Kane

Quoted 8 lines

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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Adam Kane

author

2007-07-13 00:10 UTC #9 lore raw

In reply to Adam Kane

Quoted 50 lines · Kay Sievers

Quoted 32 lines · 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
Quoted 22 lines · Bauke Jan Douma
Adam Kane wrote on 10-07-07 22:32:
Quoted 21 lines
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"
Quoted 12 lines
Quoted 6 lines
Quoted 6 lines
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"
Quoted 5 lines
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.

Quoted 5 lines

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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