Ubuntu Tips

Blog, Linux, Ubuntu


Ubuntu Tips

  • Disable audio power save mode to avoid static noise when no player active
    •     # Change live setting
    echo "0" | sudo tee /sys/module/snd_hda_intel/parameters/power_save

    # Change permanent setting
    echo "options snd_hda_intel power_save=0" | sudo tee -a /etc/modprobe.d/audio_disable_powersave.conf


Ubuntu Auto Upgrade

Blog, Linux, Ubuntu


Configure Ubuntu Auto Upgrade in terminal

  • Install dependencies
    •         sudo apt install unattended-upgrades
  • Edit /etc/apt/apt.conf.d/50unattended-upgrades and change the following:
    •         # Enable this setting in Unattended-Upgrade::Allowed-Origins
        "${distro_id}:${distro_codename}-updates";
  • To keep /boot folder small
    •         Unattended-Upgrade::Remove-Unused-Kernel-Packages "true";
        Unattended-Upgrade::Remove-Unused-Dependencies "true";
  • Optional:
    •         # Replace email address with administrator address and insure that email can be sent from cli
        Unattended-Upgrade::Mail "you@some.site";

        # Enable auto reboot
        Unattended-Upgrade::Automatic-Reboot "true";
        Unattended-Upgrade::Automatic-Reboot-Time "02:38";
        # For non-critical servers, add this:
        Unattended-Upgrade::Automatic-Reboot-WithUsers "true";
  • Edit /etc/apt/apt.conf.d/20auto-upgrades and change the following:
    •         # Some of these settings may already be active
        APT::Periodic::Update-Package-Lists "1";
        APT::Periodic::Download-Upgradeable-Packages "1";
        APT::Periodic::AutocleanInterval "7";
        APT::Periodic::Unattended-Upgrade "1";
  • Check if it works:
    •         sudo unattended-upgrades --dry-run --debug

References