[CentOS] systemctl reboot -- server not accessible after reboot
Hi, Such a simple problem, but I can't figure out the cause. Supermicro server with a Xeon E3-1200 cpu. 1U entry level item. Using CentOS 7 from ~$root --- systemctl reboot Server disconnects my ssh connection and never comes back up. Go to the server and the power is on but the server is not accessible by ssh. When I connect a monitor and keyboard --- non-responsive. It's like it's in suspend mode. I push and hold the power button until the server fully powers down. Push power again and everything boots, goes to prompt, and all is well. When I try systemctl reboot directly on the server. Same problem --- does not start to login prompt. Manually power down and power up again --- works and all is well. Anyone have this problem before? I've checked all the BIOS options and I can't find anything misconfigured. Thanks for your help. Mike ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] systemctl reboot -- server not accessible after reboot
Hi, I have this problem! Try: # shutdown -r now For a test, please... 2017-10-14 14:54 GMT-03:00 Mike <1100...@gmail.com>: > Hi, > > Such a simple problem, but I can't figure out the cause. > Supermicro server with a Xeon E3-1200 cpu. > 1U entry level item. > > Using CentOS 7 > > from ~$root --- systemctl reboot > > Server disconnects my ssh connection and never comes back up. > Go to the server and the power is on but the server is not accessible by > ssh. > When I connect a monitor and keyboard --- non-responsive. It's like > it's in suspend mode. > > I push and hold the power button until the server fully powers down. > Push power again and everything boots, goes to prompt, and all is well. > > When I try systemctl reboot directly on the server. > Same problem --- does not start to login prompt. > > Manually power down and power up again --- works and all is well. > > Anyone have this problem before? > I've checked all the BIOS options and I can't find anything misconfigured. > > Thanks for your help. > > Mike > ___ > CentOS mailing list > CentOS@centos.org > https://lists.centos.org/mailman/listinfo/centos > ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] systemctl reboot -- server not accessible after reboot
Am 14.10.2017 um 19:54 schrieb Mike: Hi, Such a simple problem, but I can't figure out the cause. Supermicro server with a Xeon E3-1200 cpu. 1U entry level item. Using CentOS 7 The version is a bit unprecise. Are you fully updated? On 7.3 and 7.4 I haven't seen that issue. from ~$root --- systemctl reboot Server disconnects my ssh connection and never comes back up. Go to the server and the power is on but the server is not accessible by ssh. When I connect a monitor and keyboard --- non-responsive. It's like it's in suspend mode. I push and hold the power button until the server fully powers down. Push power again and everything boots, goes to prompt, and all is well. When I try systemctl reboot directly on the server. Same problem --- does not start to login prompt. Manually power down and power up again --- works and all is well. Anyone have this problem before? I've checked all the BIOS options and I can't find anything misconfigured. Thanks for your help. Mike https://bugzilla.redhat.com/show_bug.cgi?id=1047614 Does that fit? Alexander ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] systemctl reboot -- server not accessible after reboot
On 10/14/2017 10:54 AM, Mike wrote: When I try systemctl reboot directly on the server. Same problem --- does not start to login prompt. so where does it stop? does it never finish BIOS short self-test after the shutdown? does it hang somewhere in the Linux loading sequence? if it goes to the graphic screen with the blue startup bar or whatever, I believe you can hit ESC to get the console messages. -- john r pierce, recycling bits in santa cruz ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] systemctl reboot -- server not accessible after reboot
On Oct 14, 2017, at 1:54 PM, Mike <1100...@gmail.com> wrote: > Server disconnects my ssh connection and never comes back up. > Go to the server and the power is on but the server is not accessible by ssh. > When I connect a monitor and keyboard --- non-responsive. It's like > it's in suspend mode. > > I push and hold the power button until the server fully powers down. > Push power again and everything boots, goes to prompt, and all is well. When you say that the monitor is plugged in, and the server is unresponsive, does that mean that the monitor doesn’t even come active? That sounds like it might have crashed the kernel in a way that the display isn’t showing. You could set up kdump to catch that. You could also set up a persistent journal (create /var/log/journal) and try again, then when you manually power it up, check to see if anything was logged in the journal. If the system’s keyboard is plugged in, you could try using the magic sysrq keys to get it to do something. (see https://en.wikipedia.org/wiki/Magic_SysRq_key ) Try ‘c’ to initiate a crashdump to force kdump to record a kernel dump, then you can examine the active processes. ‘k’ or ‘g’ might clean up the display if it’s bad. Also, remote syslog is always helpful for these kinds of situations, although if the network is down when it crashes then it won’t be as helpful, which is why I suggest looking at the journal. -- Jonathan Billings ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] sendmail
On Mon, Oct 2, 2017 at 7:25 PM, Pete Biggs wrote: > On Mon, 2017-10-02 at 23:18 +, Larry Martell wrote: >> On Mon, Oct 2, 2017 at 6:26 PM Stephen John Smoogen >> >> > Sendmail is not the standard email server for EL7 >> >> >> What is the the standard email server? >> > > Postfix Thanks. I was able to get postfix working in the docker container. ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
