I wrote: > I'll try to boot the system with debian buster but with the same new > kernel and report back.
Followup: I've tested this with a debian buster root filesystem with the same new 5.14.12 kernel: The behaviour is identical to the one with bullseye. So at this time I believe that this is not a regression in the debian ifupdown mechanisms. Can we leave this open for some time until I've verified what the problem is? I currently see two possibilities: - I've done something differently for my other root-NFS setups - There is a difference in newer kernels that causes this The message "RTNETLINK answers: File exists" typically occurs if there already is a route that some program is trying to set up. I've verified that it is not the default route: If I remove the default route and *then* try ifup I'm still getting the same behaviour: root@sun7i:~# ip route ls default via 10.23.5.254 dev eth0 10.23.5.0/24 dev eth0 proto kernel scope link src 10.23.5.173 root@sun7i:~# ip route del default root@sun7i:~# ip route ls 10.23.5.0/24 dev eth0 proto kernel scope link src 10.23.5.173 root@sun7i:~# ifup eth0 Internet Systems Consortium DHCP Client 4.4.1 Copyright 2004-2018 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/eth0/02:42:b3:f0:2d:3e Sending on LPF/eth0/02:42:b3:f0:2d:3e Sending on Socket/fallback Created duid "\000\001\000\001#\367\373\240\002B\263\360->". DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7 DHCPOFFER of 10.23.5.173 from 10.23.5.254 DHCPREQUEST for 10.23.5.173 on eth0 to 255.255.255.255 port 67 DHCPACK of 10.23.5.173 from 10.23.5.254 RTNETLINK answers: File exists DHCPDECLINE of 10.23.5.173 on eth0 to 255.255.255.255 port 67 [...] Of course I cannot remove the kernel link-scope route to the local network with NFS-root. So I couldn't check if that route causes the RTNETLINK message. All the experiments in this email were with a debian buster rootfs, they're identical to the behaviour with bullseye. Ralf -- Dr. Ralf Schlatterbeck Tel: +43/2243/26465-16 Open Source Consulting www: www.runtux.com Reichergasse 131, A-3411 Weidling email: [email protected]
