第5章 Preparing network-based repositories

Procedure

1. Install the nfs-utils package:

   # dnf install nfs-utils

2. Copy the DVD ISO image to a directory on the NFS server. This example assumes the DVD ISO is copied to the /nfs/rhel10-install/ directory on the NFS server.

3. Open the /etc/exports file using a text editor and add a line with the following syntax:

   /exported_directory/ clients

   • Replace /exported_directory/ with the full path to the directory with the ISO image.

   • Replace clients with one of the following:

     • The host name or IP address of the target system
     • The subnetwork that all target systems can use to access the ISO image
     • To allow any system with network access to the NFS server to use the ISO image, the asterisk sign (*)

     See the exports(5) man page for detailed information about the format of this field.

     For example, a basic configuration that makes the /nfs/rhel10-install/ directory available as read-only to all clients is:

     /nfs/rhel10-install *

4. Save the /etc/exports file and exit the text editor.

5. Enable the NFS service in firewalld:

   # firewall-cmd --permanent --add-service nfs
   # firewall-cmd --permanent --add-service=mountd
   # firewall-cmd --permanent --add-service=rpc-bind
   # firewall-cmd --reload

6. Start the nfs service:

   # systemctl enable --now nfs-server.service

   If the service was running before you changed the /etc/exports file, reload the NFS server configuration:

   # systemctl reload nfs-server.service

   The ISO image is now accessible over NFS and ready to be used as an installation source.

   When configuring the installation source, use nfs: as the protocol, the server host name or IP address, the colon sign (:), and the directory holding the ISO image. For example, if the server host name is myserver.example.com and you have saved the ISO image in /nfs/rhel10-install/, specify nfs:myserver.example.com:/rhel-10-install/ as the installation source.