At 08:40 PM 12/28/2015, you wrote: >On 12/28/2015 10:01 PM, david wrote: >>Folks >> >>I've been having lots of problems with Centos 7 on Raspberry Pi 2. >>The network seems to work for a while after a bootstrap, but then >>dies. The command >> systemctl restart network >>always fails. This occurs after installation and updates. >> >>I wonder of others have had this issue, or is my RPI2 defective? >>It's connected to my internal network by a wire-connection to a >>working Centos 6 gateway. I posted the results of journalctl >>earlier, so won't bother reposting. > >No problems on my Cubieboard2: medon.htt-consult.com that has been >up 4 1/2 days. The only messages on Network that I see are: > >messages-20151227:Dec 24 09:46:33 medon NetworkManager[523]: <info> >nameserver '2001:558:feed::2' >messages-20151227:Dec 24 09:46:33 medon NetworkManager[523]: <info> >nameserver '2001:558:feed::1' >messages-20151227:Dec 24 09:46:33 medon NetworkManager[523]: <info> >(eth0): DHCPv6 state changed unknown -> bound >messages-20151227:Dec 24 09:46:33 medon NetworkManager[523]: <info> >Policy set 'eth0' (eth0) as default for IPv6 routing and DNS. >messages-20151227:Dec 24 09:46:33 medon NetworkManager[523]: <info> >(eth0): DHCPv6 client pid 1395 exited with status 0 >messages-20151227:Dec 24 09:46:33 medon NetworkManager[523]: <info> >(eth0): DHCPv6 state changed bound -> done > >which was when I booted it up in my production rack. > > >> >>Is this the right mail=list to detect if and when the issue is addressed? > >Hopefully others with RPi2 will chime in and it will be here. Robert, and others In one of those Eureka moments, I believe I understand why my network is failing. Examination of the "journalctl" output led me to the following: - Chronyd is a REPLACEMENT for ntp - Running both of them at the same time leads to ntpd disabling the ethernet link. If I'm right, perhaps a note should be added into the Arm web page so other dummies like me don't make the same mistake. For extra bonus points, I wonder if someone could answer the question: - Is it OK to use chrony instead of ntp on Centos 6&7 on i386/x86_64 systems? Should I change over? David