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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Why does the new version of Kubuntu take longer to start the wifi connection? (lemmy.ml)

submitted 1 year ago by [email protected] to c/[email protected]

16 comments fedilink hide all child comments

Kubuntu 23.10 connects to wifi, but only after all other startup programs have run.

I'm just curious as to why that is. And what controls this startup behavior.

I've had to change some startup scripts for rclone, to wait until a network connection is present before starting. Other than that it's not a problem.

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[–] [email protected] 11 points 1 year ago* (last edited 1 year ago) (1 children)

systemd-analyze plot > boottimes.svg

Open the SVG and have a look at what's happening during boot.

journalctl -b will give you some more info too. If you're using grub to boot (probably in /boot/grub/grub.cfg), you can change the loglevel and add the udev option to get a bunch more info. Helped me with a random issue recently. Here's mine for an example:

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Arch Linux' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-a96b3354-70dd-45ed-8c6c-95171e9f1e82' {
	load_video
	set gfxpayload=keep
	insmod gzio
	insmod part_gpt
	insmod ext2
	search --no-floppy --fs-uuid --set=root a96b3354-70dd-45ed-8c6c-95171e9f1e82
	echo	'Loading Linux linux ...'
	linux	/boot/vmlinuz-linux root=UUID=a96b3354-70dd-45ed-8c6c-95171e9f1e82 rw  loglevel=3 udev.log-priority=debug 
	echo	'Loading initial ramdisk ...'
	initrd	/boot/amd-ucode.img /boot/initramfs-linux.img
}

[–] mnmalst 9 points 1 year ago (1 children)

FYI: /etc/grub.d/10_linux should not be edited directly for permanent changes since those changes get replaced when grub is updated.

Use /etc/default/grub for permanent changes.

[–] [email protected] 6 points 1 year ago (2 children)

True, but for this purpose it's totally fine.

There's also a big disclaimer at the top of the file:

cat grub.cfg

DO NOT EDIT THIS FILE

It is automatically generated by grub-mkconfig using templates

from /etc/grub.d and settings from /etc/default/grub

Wording could probably be less DOOM SHALL BEFALL YE, as long as you aren't messing around and just adding logging it's not an issue.

More info on grub here: https://wiki.archlinux.org/title/GRUB

[–] mnmalst 5 points 1 year ago

Indeed, just wanted to make sure people are aware. :)

Cheers

[–] [email protected] 2 points 1 year ago (1 children)

If you know what you are doing, type "yes do as I say"

[–] [email protected] 1 points 1 year ago

That's the best part about Linux. You're allowed to do anything even when it's definitely a bad idea.