Hi list, just putting a new server through its automatic shutdown triggered by the UPS / apcupsd. All worked faultlessly, including powering up when power came back on to the UPS.
So then I go to log in and get "POWER FAILURE" followed by "Authentication failure" - this is on the console
via SSH I just get "POWER FAILURE" and the ssh connection drops.
So I guess the, log everyone out and stop further logins instruction is still lurking around somewhere.
How do I regain control of my server?? Does this mean I need to boot with a rescue disk and edit some file somewhere??
How do I prevent this re-occurring, after a perfect shutdown and restart, only to get stymied here.
Google has lots of help for dealing with various corruptions due to power failure - not the case here, the POST, grub, init restart all look just fine. TIA
On Tue, Jul 09, 2013 at 07:50:34PM +1200, Rob Kampen wrote:
So then I go to log in and get "POWER FAILURE" followed by "Authentication failure" - this is on the console
via SSH I just get "POWER FAILURE" and the ssh connection drops.
Sounds like /etc/nologin; contents of which are displayed immediately before the login session terminates. Configured within apcupsd.conf with a configuration setting of NOLOGINDIR pointing to /etc by default; I don't believe it can be disabled, however.
So I guess the, log everyone out and stop further logins instruction is still lurking around somewhere.
How do I regain control of my server??
Remove /etc/nologin.
Does this mean I need to boot with a rescue disk and edit some file somewhere??
"ssh root@host rm -f /etc/nologin" will remove it.
How do I prevent this re-occurring, after a perfect shutdown and restart, only to get stymied here.
apcupsd should be handling this automatically when mains power is restored. Perhaps check the package documentation / project bugtracker.
John
On 07/09/2013 08:04 PM, John R. Dennison wrote:
On Tue, Jul 09, 2013 at 07:50:34PM +1200, Rob Kampen wrote:
So then I go to log in and get "POWER FAILURE" followed by "Authentication failure" - this is on the console
via SSH I just get "POWER FAILURE" and the ssh connection drops.
Sounds like /etc/nologin; contents of which are displayed immediately before the login session terminates. Configured within apcupsd.conf with a configuration setting of NOLOGINDIR pointing to /etc by default; I don't believe it can be disabled, however.
Thanks John, I'll look for this file.
So I guess the, log everyone out and stop further logins instruction is still lurking around somewhere.
How do I regain control of my server??
Remove /etc/nologin.
Does this mean I need to boot with a rescue disk and edit some file somewhere??
"ssh root@host rm -f /etc/nologin" will remove it.
How do I prevent this re-occurring, after a perfect shutdown and restart, only to get stymied here.
not an option, already set no root login via ssh. however I have console access, so a <Ctrl><Alt>F7 got me another tty and root login from there worked.
now to debug the apcupsd.... Thanks for the help - appreciated
apcupsd should be handling this automatically when mains power is restored. Perhaps check the package documentation / project bugtracker.
John
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Rob Kampen