Hello,
RHEL5 still uses an old udev version (095 based) which supports the
deprecated "last_rule" directive. I've encountered an annoying case in
which a RedHat-supplied rules file simply prevents me from adding
additional rules (in different rules file, because I want to avoid
modifying RedHat's rules file).
The file is 40-multipath.rules; they've got the following two rules
inside (among others):
PROGRAM=="/sbin/dmsetup info -c --noheadings -o name -j %M -m %m",
RESULT=="?*", NAME="%k", SYMLINK="mpath/%c", RUN+="/sbin/kpartx -a -p p
/dev/mapper/%c"
OPTIONS="last_rule"
Now, adding more SYMLINKS in a separate rule seems like an impossible task:
* I cannot do it in a later rule: because of the "last_rule" directive
is used.
* I cannot do it in an earlier rule: because of the NAME="%k", afaik you
cannot name a device twice, and empirically adding NAME="%k" in an
earlier rule prevents from the next NAME="%k" rule to run.
Furthermore, their usage of SYMLINK= (assignment, instead of appending
with +=) means that all previously set SYMLINKs are getting overwritten.
Did I get it right? I wonder if there is something creative to do here,
or is it a complete no-go.
Best Regards,
--
Oren Held
Host Side Development Team
IBM-XIV
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