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Old 11-28-2007, 11:08 PM   #1
patrarch
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Registered: Nov 2007
Posts: 2

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udev rule failing to create iscsi symlinks!


Hello. Any udev gurus out there?

I have a udev rule that simply creates a symbolic link in /dev given an iscsi device:

BUS="scsi", SYSFS{vendor}="EQLOGIC ", PROGRAM="/root/devpath2alias %k %n", SYMLINK="%c"

I know this rule is valid because it works perfectly when I run 'udevstart' manually, but I want the rule to run at boot, which it does not.

To generate the link name, I have a script that uses iscsi-ls to retrieve the TARGET NAME of an iscsi connection at /dev/sd[whatever]. Again, it works great - but not at boot.

Looking at the boot log, I noticed that the device nodes (/dev/sd[whatever]) are created AFTER my rule is executed! That is,

...
Nov 28 20:37:25 pndtest1 udev[7773]: configured rule in '/etc/udev/rules.d/95-local.rules' at line 4 applied, added symlink '%c'
...
Nov 28 20:37:26 pndtest1 udev[5145]: creating device node '/dev/sde4'
...

Is it possible that my rule is failing because the device node has not been assigned yet? If so, what would be the correct rule to write then? If not, why in the world is this happening?


Many many thanks for any help you can give me.

patrarch
 
Old 11-29-2007, 04:42 PM   #2
tuxrules
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Registered: Jun 2004
Location: Chicago
Distribution: Slackware64 14.1
Posts: 1,141

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No Udev guru here but did you refer to the guide?
http://reactivated.net/writing_udev_rules.html

Also it may be a typo but I see a _space_ at the end of
Code:
SYSFS{vendor}="EQLOGIC "
May be that's causing you problems..
 
  


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