I hope that the answer to this isn't posted up somewhere else, I have
looked around and I haven't found much of anything, augeas documentation
seems to be thin. Is there even full documentation for all the augeas
function and language syntax? What I am trying to do is edit the
grub.conf file and modify some parameters for each kernel line, remove
rhgb, add audit = 1. I would like for this to happen on all kernels
listed in /etc/grub.conf, so for audit I have:
#Set audit=1 for grub.conf
augeas {"kernel_audit":
context => "/files/etc/grub.conf",
changes => "set title[*]/kernel/audit 1",
onlyif => "get title[*]/kernel/audit != 1",
}
This suprisingly works, but only for the first entry in grub.conf I say
surprisingly because running the set command via augtool fails, so this
behaviour is a bit different for the ruby bindings. Does anyone with
some wicked augeas skill know how to express what I am trying to express
here? Is it even possible?
Second problem, rhgb. This is an empty node, as in it comes back rhgb =
(none) in augtool, I am trying to write an onlyif rule but how do you
match none?
#Remove rhgb from kernel lines if it exists
augeas {"kernel_rhgb":
context => "/files/etc/grub.conf",
changes => "remove title[*]/kernel/rhgb",
onlyif => "match title[1]/kernel/rhgb == ['none']",
}
Now again I would really like it to match all, and remove from all,
removal from all seems to work, but the match, as I said, fails. I have
tried a lot of variants to the point where I don't think it is a text
match, but I am not sure how to match it. Again I am just getting
started with this stuff, my apologies if the answer is glaringly
obvious, but please at least point me in the right direction.
-Erinn
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