Configuring the TFTP Server

In the next step, you need to configure the TFTP server that you installed in the previous step. This section describes the process of configuring the TFTP server for BIOS-based systems. For information on how to configure the TFTP server for installing Parallels Cloud Server on EFI-based systems, see Configuring for EFI in the Red Hat Enterprise Linux Installation Guide at https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Installation_Guide/s1-netboot-pxe-config-efi.html .

To configure the TFTP server:

1. On the PXE server, open the /etc/xinetd.d/tftp file, and edit it as follows:

   service tftp

   {

   disable = no

   socket_type = dgram

   protocol = udp

   wait = yes

   user = root

   server = /usr/sbin/in.tftpd

   server_args = -v -s /tftpboot

   per_source = 11

   cps = 100 2

   flags = IPv4

   }

   Once you are done, save the file.

2. Copy the following files to the /tftpboot directory (if this directory does not exist, create it under the root ( / ) directory):
   • vmlinuz
   • initrd.img
   • menu.c32
   • pxelinux.0

   These files are necessary to start the installation of Parallels Cloud Server. You can find the first two files in the /isolinux directory of the Parallels Cloud Server distribution. The menu.c32 and pxelinux.0 files are located in the syslinux installation directory on the PXE server (usually, this is the /usr/share/syslinux or /usr/lib/syslinux directory).

3. Create the /tftpboot/pxelinux.cfg directory, and inside this directory, make the default file.
4. Open the default file for editing, and add the following strings to it:

   default menu.c32

   prompt 0

   timeout 100

   ontimeout PCS

   menu title Parallels Boot Menu

   label PCS

   menu label Install Parallels Cloud Server

   kernel vmlinuz

   append initrd=initrd.img ksdevice=eth0

   For detailed information on the parameters you can specify in the /tftpboot/pxelinux.cfg/default file and their configuration, see the documentation for syslinux and its man pages.

5. Restart the xinetd service:

   # /etc/init.d/xinetd restart

6. If necessary, configure your firewall on the PXE server to allow access to the TFTP server.

Note: When running the TFTP server, you might get the "Permission denied" error. In this case, you may try to fix the problem by running the following command on the server: # restorecon -Rv /tftboot/ .