How to Add Realtek R8125 Driver PPA for Ubuntu-Based

GNU/Linux Ubuntu Adding Realtek R8125 Driver PPA Repo Guide

Hi! The Tutorial shows you Step-by-Step How to Add Realtek R8125 Driver PPA Repository in Ubuntu-Based GNU/Linux OSes.

And Realtek R8125 Driver for Ubuntu PPA is developed thanks to the beneficent Work of Kelebek333.

Especially relevant, the Supported RTL8125 Controllers are:

• RTL8125
• RTL8125B(S)

Finally, this Setup is Valid for All the Ubuntu-based Distros like:

• Linux Mint
• Lubuntu
• Kubuntu
• Xubuntu
• Zorin OS
• Pop_OS!
• Elementary OS
• Kde Neon
• Linux Lite
• Bodhi Linux
• Q4OS
• Trisquel
• LXLE
• feren OS
• Peppermint
• Voyager Ubuntu
• Linux Ultimate Edition

1. 1. Launching Terminal

   How to QuickStart with Command Line on GNU/Linux:

   Console QuickStart Guide

   Getting-Started with Command Line on GNU/Linux Terminal

2. 2. Adding Realtek R8125 Driver Repo

   Then to Add Realtek R8125 Driver Repository for Ubuntu
   Execute:

   sudo add-apt-repository ppa:kelebek333/drivers

   And then for most Ubuntu-based OSes to Refresh Repos:

   sudo apt update

   In case of Not Found Issue then amend it manually, with the nano Editor like:

   sudo nano /etc/apt/sources.list.d/kelebek333*.list

   And try Set it to the nearest Release, so for instance Change “noble” in “mantic”.
   Again the Ubuntu Derivatives you may need to search Online for the Parent using the “based on” Keyword.
   Ctrl+x to Save and Exit.
   Last, Update the Apt Sources again.

3. 3. Disabling Secure Boot

   (In case, and only on PCs with BIOS and installed in UEFI Mode) So to Disable Secure Boot
   First, check your installation Mode with:

   [ -d /sys/firmware/efi ] && echo "EFI" || echo "BIOS"

   And then again to check Secure Boot state:

   mokutil --sb-state

   If it is Enabled then access you PC BIOS and Disable it! In case you may be interested to see: How to Access BIOS Guide.