On 12/31/2015 06:13 PM, david wrote: > 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? I am leaving my C6 (really RSEL6) servers as is with NTP. all my C7 are using Chrony.