Re: f36 - kernel update breaks resolv.conf

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On 31/05/2022 22.25, Eyal Lebedinsky wrote:
I am on f36 for a few weeks now, upgraded from f34.

This is the second time this happened. A 'dnf update' runs fine but hangs at the very end, after the list of 'Veritying'.
dnf (the python3 process) is in state D+ (though I could kill it).

dnf.log ends with
     2022-05-31T21:32:33+1000 DDEBUG RPM transaction start.
     2022-05-31T21:37:51+1000 DDEBUG RPM transaction over.

It is missing the usual final stanza, like
     2022-05-16T22:21:23+1000 DDEBUG RPM transaction over.
     2022-05-16T22:21:23+1000 DDEBUG timer: verify transaction: 672 ms
     2022-05-16T22:21:23+1000 DDEBUG timer: transaction: 2669 ms

dnf.rpm.log ends with this interesting line
     2022-05-31T21:37:06+1000 INFO '/etc/resolv.conf' -> '../run/systemd/resolve/stub-resolv.conf'
and sure enough I lost connectivity which may have lead to dnf hanging.
Rebooting leave my network setup broken in the same way.
Restoring resolv.conf to my usual hand made file gets things going.

This seems to happen when a kernel is updated but not at other times.

While I can "fix" it (I keep a resolv.conf.good) when it happens, I would rather sort it out permanently if it is a local issue.

Any idea?

Following help from the list (some off-list) I was encouraged to examine my whole setup
and discovered that as a result of moving the machine from bare metal to a VM I actually
had some old ifcfg-* files and was missing the new one. Once this was corrected things
are working.

Thanks everyone.

--
Eyal Lebedinsky (fedora@xxxxxxxxxxxxxx)
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