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Author: dng@d404.nl
To: dng
Subject: Re: [DNG] Shutdown/halt versus WiFi and NFS
On 28-05-2022 10:23, Brad Campbell via Dng wrote:
> On 24/9/20 03:55, Michael S. Keller via Dng wrote:
>> My desktop is running Chimaera, and I saw this with Beowulf, but didn't spend much time on it then.
>> My network connection is via WiFi, and I have permanent NFS mounts in place. I run SysV init.
>> During halt or shutdown via init scripts, NetworkManager is terminated before the NFS unmount, which brings down the active NIC, and usually the unmount hangs forever, so I have to do a hard reset or power-off.
>> After futzing with it for a while, trying to find a more elegant solution, I ended up just renaming K01network-manager and K02sendsigs in rc0.d and rc6.d. Now shutdown and reboot run reliably.
>> Before that, I tried renaming K01network-manager to K06network-manager, to place it after the NFS unmount, but it ran earlier anyway.
>> I also tried shielding NetworkManager from sendsigs, and I think it would have worked if I could make K0.network-manager run later, but that was about the point I gave up and took a virtual hammer to the issue.
> 2 years on and I keep bumping up against this issue on my laptop. Truth be told I've been bumping up against it for a long while, but an enforced break saw me have time to look into it.
> I've tried shuffling dependencies in the scripts, but can't seem to sort it out.
> Mine are transient nfs mounts, but if I forget to unmount one before rebooting it hangs and has to be power cycled.
> $ cat /etc/devuan_version
> chimaera
> Love to hear any suggestions.
> Regards,
> Brad
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For my Raspberry Pi's to boot from nfs and to shutdown normally I had to
add the variable


to /etc/dhcpcd.conf.

Hope this helps.