How To Install greenboot on CentOS 8
Introduction
In this tutorial we learn how to install greenboot on CentOS 8.
What is greenboot
Generic Health Check Framework for systemd.
We can use yum or dnf to install greenboot on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install greenboot.
Install greenboot on CentOS 8 Using dnf
Update yum database with dnf using the following command.
sudo dnf makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install greenboot using dnf by running the following command:
sudo dnf -y install greenboot
Install greenboot on CentOS 8 Using yum
Update yum database with yum using the following command.
sudo yum makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install greenboot using yum by running the following command:
sudo yum -y install greenboot
How To Uninstall greenboot on CentOS 8
To uninstall only the greenboot package we can use the following command:
sudo dnf remove greenboot
greenboot Package Contents on CentOS 8
/etc/greenboot
/etc/greenboot/check
/etc/greenboot/check/required.d
/etc/greenboot/check/required.d/00_required_scripts_start.sh
/etc/greenboot/check/wanted.d
/etc/greenboot/check/wanted.d/00_wanted_scripts_start.sh
/etc/greenboot/green.d
/etc/greenboot/red.d
/usr/lib/systemd/system/greenboot-healthcheck.service
/usr/lib/systemd/system/greenboot-task-runner.service
/usr/lib/systemd/system/redboot-task-runner.service
/usr/lib/systemd/system/redboot.target
/usr/libexec/greenboot
/usr/libexec/greenboot/greenboot
/usr/share/doc/greenboot
/usr/share/doc/greenboot/README.md
/usr/share/licenses/greenboot
/usr/share/licenses/greenboot/LICENSE
References
Summary
In this tutorial we learn how to install greenboot on CentOS 8 using yum and dnf.