Hello list members,
My adventure into udev rules has taken an interesting turn. I did
discover a stupid error in the way I was attempting to assign static
disk device names on CentOS-5.5, so that's out of the way.
But in the process of exploring, I installed a trial copy of RHEL-6 on
the new machine to see if anything had changed (since I intend this box
to run CentOS-6 anyway).
Lots of differences, and it's obvious that RedHat does things a bit
differently here and there. My focus has been on figuring out how best
to solve my udev challenge, and I found that tools like 'scsi_id' and
udev admin/test commands have changed. The udev rules themselves seem
to be the same.
Regarding networking, all of my 'ifcfg-*' files from CentOS-5.5 worked
well, including bridging for KVM. Of course, one of the first things I
did was remove that atrocious NetworkManager package ... it needs to be
rewritten to make it a *lot* more intuitive. RedHat uses it during
installation to manually configure the NICs, which I think is a
mistake. I much prefer the way CentOS anaconda has done it so far, as a
separate install menu form.
The performance of the machine seemed to be better with the newer
kernel, which is encouraging. I suspect we can look forward to a number
of improvements. I've just managed to scratch the surface. I do expect
there may be a few challenges for those of us upgrading a system from
5.x to 6, where some user-written admin scripts could break depending on
the system commands they use.
I look forward to CentOS-6 and all the goodies we can expect, and I'm
quite happy to wait until the CentOS crew does their thing before
releasing it ... they deserve a lot of credit for doing a thorough job
all these years.
Chuck
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