Munin fails to start until reboot, on ALL RasPiOS 12 pre-release tests (32-bit or 64-bit, RPi 4 or 400)

[holta]

Thanks to @EMG70 for catching this:

1824 2023-06-16 14:06:47,709 p=3766 u=root n=ansible | fatal: [127.0.0.1]: FAILED! => {"changed": false, "msg": "Unable to start service munin-node: Job for munin-node.service failed because the control process exited with error code.\nSee "systemctl status munin-node.service" and "journalctl -xeu munin-node.service" for details.\n"}

Above excerpted from: http://sprunge.us/fMH1Pa?en
He later completed the LARGE-sized IIAB install after setting munin_enable: False in /etc/iiab/local_vars.yml: http://sprunge.us/OmBNOg?en

Which suggests that the following patch may not be quite enough:

• PR Temporarily Enable sysctl's IPv6 during Munin install/enable, so munin-node.service starts #3560

In order to work around:

• munin-node.service doesn't start until reboot [if IPv6 has just been disabled by sysctl] on Ubuntu 23.04 (Lunar Lobster) final release [similar on Debian 12 (Bookworm)] #3434

[holta]

FYI @EMG70 reconfirmed this ~4 days ago.

• How to pre-test RasPiOS 12 [cffi, cryptography, lxml "wheels" for Python 3.11 now exist!] #3526
• NGINX won't start: '"location" directive is not allowed here in /etc/nginx/conf.d/admin-console.conf' [RasPiOS 12 pre-release graphical desktop doesn't work, due to "XML syntax error" with /home/edwin/.config/openbox/lxde-rc.xml empty?] #3612

[holta]

Just FYI this problem continues on the latest pre-release of 64-bit "RasPiOS 12 with desktop" on RPi 4:

TASK [munin : Enable & Start 'munin-node' systemd service] *****************************************************************************************************
fatal: [127.0.0.1]: FAILED! => {"changed": false, "msg": "Unable to start service munin-node: Job for munin-node.service failed because the control process exited with error code.\nSee "systemctl status munin-node.service" and "journalctl -xeu munin-node.service" for details.\n"}

(And as usual, rebooting and then re-running sudo iiab to continue does at least work!)

iiab-diagnostics: http://sprunge.us/z6a7Ei?en