system-config-netboot) is no longer available in Red Hat Enterprise Linux 6. Deploying diskless systems is now possible in this release without the use of system-config-netboot.
tftp-server
xinetd
dhcp
syslinux
dracut-network
tftp service (provided by tftp-server) and a DHCP service (provided by dhcp). The tftp service is used to retrieve kernel image and initrd over the network via the PXE loader. Both tftp and DHCP services must be provided by the same host machine.
tftp service is disabled by default. To enable it and allow PXE booting via the network, set the Disabled option in /etc/xinetd.d/tftp to no. To configure tftp, perform the following steps:
tftp root directory (chroot) is located in /var/lib/tftpboot. Copy /usr/share/syslinux/pxelinux.0 to /var/lib/tftpboot/, as in:
cp /usr/share/syslinux/pxelinux.0 /var/lib/tftpboot/
pxelinux.cfg directory inside the tftp root directory:
mkdir -p /var/lib/tftpboot/pxelinux.cfg/
tftp traffic; as tftp supports TCP wrappers, you can configure host access to tftp via /etc/hosts.allow. For more information on configuring TCP wrappers and the /etc/hosts.allow configuration file, refer to the Red Hat Enterprise Linux 6 Security Guide; man hosts_access also provides information about /etc/hosts.allow.
tftp for diskless clients, configure DHCP, NFS, and the exported file system accordingly. Refer to Section 19.2, “Configuring DHCP for Diskless Clients” and Section 19.3, “Configuring an Exported File System for Diskless Clients” for instructions on how to do so.