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| − | NetBoot using PXE and TFTP.
| + | [[Category:Linux]] |
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| − | This will boot using an official installation image.
| + | NetBoot using PXE and TFTP. See [[NetBoot server principle]] |
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| − | Reminder:
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| − | * NetBoot requires a DHCP server
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| − | * TFTP is NOT secure at all. You should only use it into your internal network !!
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| − | => Don't forget to adjust your firewall rules
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| − | =Installation=
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| − | '''Trivial FTP (TFTP) client'''
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| − | <syntaxhighlight lang="bash">
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| − | apt-get install tftp-hpa
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| − | </syntaxhighlight>
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| − | '''Trivial FTP (TFTP) server'''
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| − | <syntaxhighlight lang="bash">
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| − | apt-get install tftpd-hpa
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| − | </syntaxhighlight>
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| − | '''SysLinux [netboot utilities]'''
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| − | <syntaxhighlight lang="bash">
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| − | apt-get install syslinux mtools initramfs-tools
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| − | </syntaxhighlight>
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| − | Syslinux contains some starter files you can use for your netboot clients.
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| − | =Configuration=
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| − | ==Create target TFTP folders==
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| − | <syntaxhighlight lang="bash">
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| − | mkdir -m 755 -p /tftpboot
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| − | </syntaxhighlight>
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| − | ==TFTP configuration==
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| − | <syntaxhighlight lang="bash">
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| − | vim /etc/default/tftpd-hpa
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| − | </syntaxhighlight>
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| − | It should look like:
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| − | <syntaxhighlight lang="bash">
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| − | # /etc/default/tftpd-hpa
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| − | RUN_DAEMON="yes"
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| − | TFTP_USERNAME="tftp"
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| − | TFTP_DIRECTORY="/tftpboot"
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| − | TFTP_ADDRESS="0.0.0.0:69"
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| − | TFTP_OPTIONS="--secure"
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| − | </syntaxhighlight>
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| − | '''Don't forget to add the RUN_DAEMON setting.'''
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| − | The TFTP server files [= the files that will be used by the TFTP clients] are in the "TFTP_DIRECTORY" instruction.
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| − | ==> You should use the folder we just created: ''/tftpboot''
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| − | IMPORTANT !!
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| − | '''You must not change the default user or port number''' !!
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| − | <syntaxhighlight lang="bash">
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| − | service tftpd-hpa restart
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| − | </syntaxhighlight>
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| − | ==TFTP automatic start on boot==
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| − | Sometimes the "RUN_DAEMON" is not enough for TFTP automatic startup... :(
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| − | In that case you have to create a new script:
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| − | <syntaxhighlight lang="bash">
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| − | vim /etc/network/if-up.d/tftpd-hpa
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| − | </syntaxhighlight>
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| − | Put the following content:
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| − | <syntaxhighlight lang="bash">
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| − | #!/bin/sh
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| − | restart tftpd-hpa
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| − | </syntaxhighlight>
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| − | Adjust the script's rights:
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| − | <syntaxhighlight lang="bash">
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| − | chmod 755 /etc/network/if-up.d/tftpd-hpa
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| − | </syntaxhighlight>
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| − | Reboot your server ! The TFTP should be up and running now :)
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| − | ==Firewall configuration==
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| − | Adjust your firewall script and add the following rules:
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| − | <syntaxhighlight lang="bash">
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| − | IPTABLES=`which iptables`
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| − | LAN_ADDRESS="172.16.50.0/24"
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| − | $IPTABLES -A INPUT -p udp -s $LAN_ADDRESS --dport 69 -j ACCEPT
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| − | </syntaxhighlight>
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| − | ==Test the server==
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| − | 1. Create a file on the server
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| − | <syntaxhighlight lang="bash">
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| − | vim /tftpboot/hello.txt
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| − | </syntaxhighlight>
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| − | 2. Connect to the server
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| − | Install TFTP client:
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| − | <syntaxhighlight lang="bash">
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| − | apt-get install tftp-hpa
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| − | </syntaxhighlight>
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| − | Connect to the server and get file:
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| − | <syntaxhighlight lang="bash">
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| − | tftp 192.168.1.156
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| − | get hello.txt
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| − | quit
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| − | </syntaxhighlight>
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| − | Check the received file:
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| − | <syntaxhighlight lang="bash">
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| − | cat hello.txt
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| − | </syntaxhighlight>
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| − | =TFTP management=
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| − | Just use the "service" command:
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| − | <syntaxhighlight lang="bash">
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| − | service tftpd-hpa {status|restart|start|stop}
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| − | </syntaxhighlight>
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NetBoot using PXE and TFTP. See NetBoot server principle
Setup NetBoot files
Use an Ubuntu ISO image as NetBoot
Download the latest Ubuntu netboot image for the target architecture(s) from: http://cdimage.ubuntu.com/netboot/
You have to take the netboot.tar.gz archive.
cd /tftpboot/
mkdir rescue
cd rescue
wget http://archive.ubuntu.com/ubuntu/dists/trusty/main/installer-amd64/current/images/netboot/netboot.tar.gz
tar -xzvf netboot.tar.gz
rm netboot.tar.gz
Register files in DHCP server
Edit your DHCP server configuration:
Adjust it like that:
#### NETBOOT settings
# PXE file to serve.
# >> elilo.efi => for ia64 clients;
# >> pxelinux.0 => for x86
# These files should be at the root of your TFTP server
# Note: The file name can be add in the "host" section too. Then, the "host" will override the current setting
filename "rescue/pxelinux.0";
# set the server that serve this NETBOOT file
next-server 172.16.50.2;
# Ensure that the new client (the one booting) is not stealing someone else IP @
ping-check = 1;
Mind the "rescue/" in the filename section.
You can always override that setting later on for each host.
Restart the DHCP server
service isc-dhcp-server restart
Next step: Diskless server / workstation
