Perform the following steps to install yb-voyager using yum for RHEL 9 and CentOS 9:

1. Update the yum package manager, and all the packages and repositories installed on your machine using the following command:

   sudo dnf update
   

2. Install the yugabyte yum repository using the following command:

   sudo dnf install https://downloads.yugabyte.com/repos/reporpms/yb-yum-repo-1.1-0.noarch.rpm -y
   

3. Install the epel-release repository using the following command:

   sudo dnf install https://dl.fedoraproject.org/pub/epel/epel-release-latest-9.noarch.rpm -y
   

4. Install mysql-community-release repository using the following command:

   sudo dnf install https://dev.mysql.com/get/mysql84-community-release-el9-1.noarch.rpm -y
   

5. Install the PostgreSQL repositories using the following command:

   sudo dnf --disablerepo=* install https://download.postgresql.org/pub/repos/yum/reporpms/EL-9-x86_64/pgdg-redhat-repo-latest.noarch.rpm -y
   

   These repositories contain the rest of the dependencies required to run yb-voyager.

6. Disable the default PostgreSQL yum module on your machine using the following command:

   sudo dnf -qy module disable postgresql
   

7. Install perl-open on your machine using the following command:

   sudo dnf install perl-open.noarch -y
   

8. Install Oracle Instant Clients using the following command:

   OIC_URL="https://download.oracle.com/otn_software/linux/instantclient/215000" && \
   sudo dnf install -y \
       ${OIC_URL}/oracle-instantclient-tools-21.5.0.0.0-1.x86_64.rpm \
       ${OIC_URL}/oracle-instantclient-basic-21.5.0.0.0-1.x86_64.rpm \
       ${OIC_URL}/oracle-instantclient-devel-21.5.0.0.0-1.x86_64.rpm \
       ${OIC_URL}/oracle-instantclient-jdbc-21.5.0.0.0-1.x86_64.rpm \
       ${OIC_URL}/oracle-instantclient-sqlplus-21.5.0.0.0-1.x86_64.rpm
   

9. Update the yum package manager and all the packages and repositories installed on your machine using the following command:

   sudo dnf update
   

10. Install yb-voyager and its dependencies using the following command:

    sudo dnf install yb-voyager
    

    To install a specific version of yb-voyager on your machine, use the following command:

    sudo dnf install yb-voyager-<VERSION>
    

11. Check that yb-voyager is installed using the following command:

    yb-voyager version
    

Upgrade yb-voyager

Upgrade yb-voyager using the following command:

sudo yum update yb-voyager