(I just joined this list so this isn't going to thread properly, sorry)
Chris Lumens wrote:
This example did come up elsewhere too - briefly, I know we don't test
ipv6-only on the installer team. The QA team might, but I do not know
for sure. Any bug reports here would be helpful.
Testing has been a major focus lately and has certainly improved, but
any test system is only as good as its test cases. I know we do not
have an ipv6-only one here. We probably don't have a lot of others that
we could use. Suggestions welcome!
Hi,
I was the main person at FB that was getting us onto CentOS 7 anaconda and
helping with v6-only kickstart installs so I thought I'd chime in here.
For v6 testing I would suggest having a router on the LAN so you get the
full v6 router advertisement experience in addition to statically
configuring things (even radvd on a box/VM should be fine).
There were basically four bugs that tripped us up doing v6-only installs,
and three of them were related to race conditions with v6 RA or kernel
accept_ra problems. One was in dracut, one was NM/kickstart (that Josef
mentioned), one in Anaconda and one in NetworkManager.
I opened bug reports on these and reported my workarounds, so they're in
the process of getting fixed up. I typed up a lengthy post that gives some
background on these problems (with relevant bug ids) and my fixes in order
to do v6-only kickstart installs.
This may be helpful to other people who are in the same boat:
https://binaryfury.wann.net/2016/03/installing-centos-7-on-an-ipv6-only-system/
--bwann
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