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