I'm trying to install Grub-Customizer on my system, however I keep getting the following output when adding the PPA:
Adding deb entry to /etc/apt/sources.list.d/danielrichter2007-ubuntu-grub-customizer-lunar.list
Adding disabled deb-src entry to /etc/apt/sources.list.d/danielrichter2007-ubuntu-grub-customizer-lunar.list
Adding key to /etc/apt/trusted.gpg.d/danielrichter2007-ubuntu-grub-customizer.gpg with fingerprint 59DAD276B942642B1BBD0EACA8AA1FAA3F055C03
Hit:1 http://gb.archive.ubuntu.com/ubuntu lunar InRelease
Get:2 http://gb.archive.ubuntu.com/ubuntu lunar-updates InRelease [90.7 kB]
Ign:3 https://ppa.launchpadcontent.net/danielrichter2007/grub-customizer/ubuntu lunar InRelease
Hit:4 http://gb.archive.ubuntu.com/ubuntu lunar-backports InRelease
Hit:5 http://gb.archive.ubuntu.com/ubuntu lunar-security InRelease
Err:6 https://ppa.launchpadcontent.net/danielrichter2007/grub-customizer/ubuntu lunar Release
404 Not Found [IP: 185.125.190.52 443]
Hit:7 https://dl.google.com/linux/chrome/deb stable InRelease
Reading package lists... Done
E: The repository 'https://ppa.launchpadcontent.net/danielrichter2007/grub-customizer/ubuntu lunar Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
Ultimately, when I then do sudo apt-get install grub-customizer
it fails.
I'd read somewhere that it had originally been removed from Ubuntu 22.04 due to a logic error but this had been fixed?
Is there any way I can get it installed onto my system?
Thanks!