Provisioning Free Oracle Compute Instance

Using the instance

Download the public and private key when creating the instance.

chmod 400 <private-key.key>
 
ssh -i <private-key.key> <username>@<public-ip>
# <username> is the default username for the instance. 
# For Oracle Linux and CentOS images, the default username is "opc". 
# For Ubuntu images, the default username is "ubuntu".

If you are using oracle linux, you have to enable EPEL repository to install packages like htop, wget, curl, etc.

~ dnf search epel
 
Last metadata expiration check: 0:02:43 ago on Sat 28 Sep 2024 01:04:40 PM GMT.
=============================== Name & Summary Matched: epel ================================
oracle-epel-release-el9.aarch64 : Extra Packages for Enterprise Linux (EPEL) yum repository
                                : configuration
oracle-epel-release-el9.src : Extra Packages for Enterprise Linux (EPEL) yum repository
                            : configuration

From the above command, we get a list of repo's that are available.

~ rpm -q oracle-epel-release-el9.aarch64
 
oracle-epel-release-el9-1.0-1.el9.aarch64

~ dnf repolist --all | grep -i epel
 
ol9_developer_EPEL            Oracle Linux 9 EPEL Packages for Developm disabled

Let's enable the EPEL repo

~ sudo dnf config-manager --enable ol9_developer_EPEL

Let's verify if it has been enabled:

~ dnf repolist --all | grep -i epel

Install your package

~ sudo dnf install htop