You are faced with a time-bound task, and the only available tool to complete the task either doesn’t work on Linux or it’s unsupported, outdated and buggier than a Louisiana evening.

On Wed, February 2, 22:22:22 UTC, 2022, Patrick Volkerding announced the release of Slackware 15.0. The previous release, Slackware 14.2, was announced on 2016/06/30 so, I’ll leave it up to you to do the math on the time it took between these releases. One can say that it took too long of a development cycle to reach 15.0 from 14.2. Why it took so long?

So you installed Slackware and after selecting a package mirror in /etc/slackpkg/mirrors file, you as root did,

slackpkg update

But instead of updating the package list, slackpkg complained and threw this error,

I’ve been a Openbox & Xfce user most of my GNU/Linux life. Only recently, I’ve started using KDE Plasma. In Openbox one can easily run a command via its autostart file to set a random wallpaper,

feh --no-fehbg --bg-scale --randomize path/to/the/wallpaper/directory/* &

Xfce makes it even easier as there already is an option to set a random wallpaper at startup in its settings.
In KDE Plasma, I was unable to find any option to set a random wallpaper at the session startup so I came up with a little hack to achieve this.

Problem:

You installed Arch Linux or Manjaro or any other Arch derivative but you didn’t install Grub2 on the MBR of your HDD as you already have Grub2 installed there and you want to control the boot process from already installed Grub2 instance but booting Arch or Manjaro via that Grub2 menu is ending in kernel panic.