Difference between revisions of "Configuring basic pxeboot server"

From Notes_Wiki
(Created page with "=Configuring basic pxeboot server= To configure a basic pxeboot server we can use following steps: #Install packages '<tt>dhcp</tt>', '<tt>tftp-server</tt>' and '<tt>syslinux...")
 
m
 
(4 intermediate revisions by the same user not shown)
Line 1: Line 1:
=Configuring basic pxeboot server=
[[Main Page|Home]] > [[CentOS]] > [[CentOS 6.x]] > [[Pxeboot server configuration]] > [[Configuring basic pxeboot server]]


To configure a basic pxeboot server we can use following steps:
To configure a basic pxeboot server we can use following steps:
Line 45: Line 45:
#*Example <tt>dhcpd.conf</tt> file:
#*Example <tt>dhcpd.conf</tt> file:
#:<pre>
#:<pre>
#::option domain-name "iiit.ac.in";
#::option domain-name "example.com";
#::option domain-name-servers 192.168.36.222, 192.168.36.204;
#::option domain-name-servers 192.168.36.222, 192.168.36.204;
#::ddns-updates off;
#::ddns-updates off;
Line 101: Line 101:
*The steps have been learned from http://wiki.centos.org/HowTos/PXE/PXE_Setup and http://wiki.centos.org/HowTos/PXE/PXE_Setup/Menus
*The steps have been learned from http://wiki.centos.org/HowTos/PXE/PXE_Setup and http://wiki.centos.org/HowTos/PXE/PXE_Setup/Menus
*http://wiki.centos.org/HowTos/PXE/PXE_Setup/Menus has more information on setting up multiple level menus which is not explained here.
*http://wiki.centos.org/HowTos/PXE/PXE_Setup/Menus has more information on setting up multiple level menus which is not explained here.
[[Main Page|Home]] > [[CentOS]] > [[CentOS 6.x]] > [[Pxeboot server configuration]] > [[Configuring basic pxeboot server]]

Latest revision as of 09:36, 14 July 2022

Home > CentOS > CentOS 6.x > Pxeboot server configuration > Configuring basic pxeboot server

To configure a basic pxeboot server we can use following steps:

  1. Install packages 'dhcp', 'tftp-server' and 'syslinux' 
    yum -y install dhcp tftp-server syslinux
  2. Edit file '/etc/xinetd.d/tftp' and change 'disable' to 'no'. 
    disable = no
  3. Start 'xinetd' service and enable it to run on start-up 
    service xinetd [re]start
    

    chkconfig xinetd on
  4. Copy required files from syslinux to tftpboot directory 
    cp /usr/lib/syslinux/pxelinux.0 /tftpboot
    

    cp /usr/lib/syslinux/menu.c32 /tftpboot
    

    cp /usr/lib/syslinux/memdisk /tftpboot
    

    cp /usr/lib/syslinux/mboot.c32 /tftpboot
    

    cp /usr/lib/syslinux/chain.c32 /tftpboot
  5. Create the directory for your PXE menus 
    mkdir /tftpboot/pxelinux.cfg
  6. Create a base directory for images. Create directories for each OS release you are supporting 
    mkdir -p /tftpboot/images/centos/5.5/x86_64
  7. In each of the folders created above copy files 'vmlinuz' and 'initrd.img' from images/pxeboot directory of OS installation DVD/CD1
  8. Add this to your existing or new '/etc/dhcpd.conf' 
    allow booting;
    

    allow bootp;
    

    option option-128 code 128 = string;
    

    option option-129 code 129 = text;
    

    next-server xxx.xxx.xxx.xxx;
    

    filename "/pxelinux.0";
    Note:
    • xxx.xxx.xxx.xxx is the IP address of your PXE server.
    • Example dhcpd.conf file:
    option domain-name "example.com";
    

    option domain-name-servers 192.168.36.222, 192.168.36.204;
    

    ddns-updates off;
    

    ddns-update-style none;
    

    

    allow booting;
    

    allow bootp;
    

    option option-128 code 128 = string;
    

    option option-129 code 129 = text;
    

    next-server 172.31.1.2;
    

    filename "/pxelinux.0";
    

    

    subnet 172.31.1.0 netmask 255.255.255.0
    

    {
    

    authoritative;
    

    option routers 172.31.1.1;
    

    max-lease-time 1296000;
    

    default-lease-time 340000;
    

    range 172.31.1.100 172.31.1.200;
    

    }
  9. Restart DHCP server and enable it on startup 
    service dhcpd [re]start
    

    chkconfig dhcpd on
  10. Download DVD or CD ISO images of the OS that we plan to install and host it on HTTP/FTP server the way we do for network installation. This server need not be same as DHCP server or TFTP server but should be reachable via machines which are going to boot using this TFTP server.
  11. If you are mounting ISO images to netinst directory with loopback device then it is best to configure the binding in '/etc/fstab' file so that even after reboot the ISO file gets again mounted on same directory. Sample fstab line may look like 
    <iso_file_path> <netinst_dir_path> iso9660 defaults,loop,ro 0 0
  12. Setup menu for pxeboot server by creating file '/tftpboot/pxelinux.cfg/default' with something like 
    default menu.c32
    

    prompt 0
    

    timeout 300
    

    ONTIMEOUT local
    

    

    MENU TITLE PXE Menu
    

    

    LABEL CentOS 5 x86_64 NO KS eth0
    

    MENU LABEL CentOS 5 x86_64 NO KS eth0
    

    KERNEL images/centos/x86_64/5.5/vmlinuz
    

    APPEND ks initrd=images/centos/5.5/x86_64/initrd.img ramdisk_size=100000 ksdevice=eth0 ip=dhcp url --url http://172.31.1.2/operating_systems/centos/5.5/x86_64/netinst/
    

    

    LABEL CentOS 5 x86_64 NO KS eth1
    

    MENU LABEL CentOS 5 x86_64 NO KS eth1
    

    KERNEL images/centos/x86_64/5.5/vmlinuz
    

    APPEND ks initrd=images/centos/5.5/x86_64/initrd.img ramdisk_size=100000 ksdevice=eth1 ip=dhcp url --url http://172.31.1.2/operating_systems/centos/5.5/x86_64/netinst/
    Note that two options are created above for single OS and client should choose the appropriate option based on whether client is connected to LAN using eth0 or eth1. If client is connected to LAN using eth2 or some other name then both these options wont work and we would have to either add another option for the client with proper network device name or change the network interface through which client connects to LAN for the installation.

Note that:


Home > CentOS > CentOS 6.x > Pxeboot server configuration > Configuring basic pxeboot server

Retrieved from "http://www.sbarjatiya.com/notes_wiki/index.php?title=Configuring_basic_pxeboot_server&oldid=6443"