A Hiba

Ha nem menne az icinga2 kliens telepítése, és a „critical/cli: Failed to create new self-signed certificate for CN 'forma.linuxmint.hu'. Please try again.” hibával megállna, akkor újabb kernelt kell telepíteni:

A hibajelenség

icinga2 node wizard
Welcome to the Icinga 2 Setup Wizard!

We will guide you through all required configuration details.

Please specify if this is an agent/satellite setup ('n' installs a master setup) [Y/n]:

Starting the Agent/Satellite setup routine...

Please specify the common name (CN) [forma.linuxmint.hu]:

Please specify the parent endpoint(s) (master or satellite) where this node should connect to:
Master/Satellite Common Name (CN from your master/satellite node): formo.linuxmint.hu

Do you want to establish a connection to the parent node from this node? [Y/n]:
Please specify the master/satellite connection information:
Master/Satellite endpoint host (IP address or FQDN): formo.linuxmint.hu
Master/Satellite endpoint port [5665]:

Add more master/satellite endpoints? [y/N]:
critical/cli: Failed to create new self-signed certificate for CN 'forma.linuxmint.hu'. Please try again.

icinga2 console
critical/Application: Error: getrandom

Additional information is available in '/var/log/icinga2/crash/report.1609833363.188512'

Aborted

uname -a
Linux sys-etr 3.10.0-327.el7.x86_64 #1 SMP Thu Nov 19 22:10:57 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

yum check-update
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile

yum update

rpm -q kernel
kernel-3.10.0-327.el7.x86_64
kernel-3.10.0-1160.6.1.el7.x86_64
kernel-3.10.0-1160.11.1.el7.x86_64

uname -a
Linux sys-etr 3.10.0-327.el7.x86_64 #1 SMP Thu Nov 19 22:10:57 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Újraindítás után

A frissítés sikerült:

uname -a
Linux sys-etr 3.10.0-1160.11.1.el7.x86_64 #1 SMP Fri Dec 18 16:34:56 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

Ezek után az Icinga2 kliens telepítése is működni fog.

Kapcsolódó hibajegyek

https://bugzilla.redhat.com/show_bug.cgi?id=1330000

A minimálisan jó kernel verzió: kernel-3.10.0-544.el7