Systemd, ten years later: a historical and technical retrospective

Re:Systemd, ten years later: a historical and technical retr... by dijit on Tuesday May 05, 2020 @06:15AM (#23078370)

log_warning_msg is a function which is wrapping 'echo'.

if you 'echo' it will go to the console.

Your distro can/does log everything that goes to the boot console.

The function 'log_warning_msg' is provided by the sourced bash file: /lib/lsb/init-funtions ; you can find a copy here: http://www.linuxfromscratch.org/lfs/view/7.0/scripts/apds02....

It's just doing echo.

If you add "echo" it will print. I promise.

And anything printed goes to whatever your distro is using to log tty0 console output. (usually /var/log/dmesg or /var/log/messages)

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Re:Systemd, ten years later: a historical and technical retr... by theamk on Wednesday May 06, 2020 @06:36PM (#23097210)

Which distro logs tty0 console output from echo ? Debian does not. Fedora does not. Gentoo used to, but it broke.

Both /var/log/dmesg and /var/log/messages log printk output from inside the kernel. They do not log echo output from userspace.

Are you sure you are an admin?

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Re:Systemd, ten years later: a historical and technical retr... by dijit on Thursday May 07, 2020 @11:46AM (#23104330)

> Which distro logs tty0 console output from echo ? Debian does not. Fedora does not. Gentoo used to, but it broke.

None, anymore, that's a little bit the point.

Devuan does, so does Debian 7 and RHEL6.

I just tested it on all three in a VM.

yes, I'm sure I'm an admin.

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