Network boot installations 编辑

Citrix Hypervisor supports booting hosts using the UEFI mode. UEFI mode provides a rich set of standardized facilities to the bootloader and operating systems. This feature allows Citrix Hypervisor to be more easily installed on hosts where UEFI is the default boot mode.

The following section contains information about setting up your TFTP and NFS, FTP, or HTTP servers to enable PXE and UEFI booting of Citrix Hypervisor server installations. It then describes how to create an XML answer file, which allows you to perform unattended installations.

Configure your PXE and UEFI environment for Citrix Hypervisor installation

Before you set up the Citrix Hypervisor installation media, configure your TFTP and DHCP servers. The following sections contain information on how to configure your TFTP server for PXE and UEFI booting. Consult your vendor documentation for general setup procedures.

In addition to the TFTP and DHCP servers, you require an NFS, FTP, or HTTP server to house the Citrix Hypervisor installation files. These servers can co-exist on one, or be distributed across different servers on the network.

Note:

PXE boot is not supported over a tagged VLAN network. Ensure that the VLAN network you use for PXE boot is untagged.

Additionally, each Citrix Hypervisor server that you want to PXE boot must have a PXE boot-enabled Ethernet card.

The following steps assume that the Linux server you are using has RPM support.

Configure your TFTP server for PXE boot

1. In your TFTP root directory (for example, /tftpboot), create a directory called xenserver

2. Copy the mboot.c32 and pxelinux.0 files from the installation media to the TFTP root directory.

   Note:

   We strongly recommend using mboot.c32 and pxelinux.0 files from the same source (for example, from the same Citrix Hypervisor ISO).

3. From the Citrix Hypervisor installation media, copy the files install.img (from the root directory), vmlinuz, and xen.gz (from the /boot directory) to the new xenserver directory on the TFTP server.

4. In the TFTP root directory (for example, /tftpboot), create a directory called pxelinux.cfg.

5. In the pxelinux.cfg directory, create your configuration file called default.

   The content of this file depends on how you want to configure your PXE boot environment. Two sample configurations are listed below. The first example configuration starts an installation on any machine that boots from the TFTP server. This installation requires manual responses. The second example configuration is for an unattended installation.

   Note:

   The following examples show how to configure the installer to run on the physical console, tty0. To use a different default, ensure that the console you want to use is the rightmost.

       default xenserver
       label xenserver
           kernel mboot.c32
           append xenserver/xen.gz dom0_max_vcpus=2 \
               dom0_mem=1024M,max:1024M com1=115200,8n1 \
           console=com1,vga ---  xenserver/vmlinuz \
           xencons=hvc console=hvc0 console=tty0 \
           ---  xenserver/install.img
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