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''Note: this page was previously way outdated. Now it is merely incomplete, inconsistent and untested. Uh, yeah.'' |
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!!! How to install [Linux] by booting it from [TFTP] |
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* The client should have a [PXE] boot-[ROM]. If it doesn't, it might still be possible to do this – read the notes at the [PXE] page about booting [PXE] off a FloppyDisk. Otherwise, ~EtherBoot is very widely supported, but the install process for ~EtherBoot is slightly different and not documented here. |
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Set up the client's [BIOS] to boot from the [LAN]. How to do this depends on your [BIOS] and [NIC]. |
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* Then, of course, you need a [TFTP] server: |
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# Install the [TFTP] [Package]s, such as <tt>tftpd-hpa</tt> or <tt>atftpd</tt> on [Debian]. |
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# Create a directory for the tftpboot files. <tt>/tftpboot</tt> is the standard location. |
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''See the [PXELINUX homepage | http://syslinux.zytor.com/pxe.php] for which files to copy here.'' |
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# Edit <tt>/etc/inetd.conf</tt> and change the <tt>tftpd</tt> line to something like this: |
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<verbatim> |
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tftp dgram udp wait root /root /usr/sbin/in.tftpd in.tftpd -vvv -p -u nobody -s /tftpboot |
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</verbatim> |
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Then restart inetd(8): <tt>killall -HUP inetd</tt> |
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* As with any network-based boot, you will also need a [DHCP] server: |
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# Edit <tt>/etc/dhcpd.conf</tt>. Here is a sample: |
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<verbatim> |
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option domain-name "example.com"; |
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option domain-name-servers ns1.example.com; |
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option subnet-mask 255.255.255.0; |
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default-lease-time 600; |
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max-lease-time 7200; |
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subnet 192.168.1.0 netmask 255.255.255.0 { |
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range 192.168.1.200 192.168.1.253; |
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option routers 192.168.1.1; |
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} |
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host clientname { |
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hardware ethernet 01:23:45:67:89:AB; |
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fixed-address 192.168.1.90; |
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filename "bpbatch.P"; |
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option option-135 "debian"; |
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} |
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</verbatim> |
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Then restart dhcpd(8): <tt>/etc/init.d/dhcp restart</tt> |
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* Finally, you need to share the install media somehow. Set up an [NFS], [FTP] or [HTTP] server, depending on your preferences. This is left as an exercise for the reader. :) |
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Now boot the client and you should get the [OS] installer. |
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!! If you can't use the network to continue with a [TFTP] install… |
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…then you probably didn’t supply the [Kernel] with a DeviceDriver for your [NIC]. The [PXE] [ROM] can happily download your [Kernel] and InitialRamDisk, but once it gives control over to the [Kernel], the [Kernel] needs to know about your network card. In that case, just pick a different kernel image with a wider range of drivers compiled in. (Remember, this is ''only to boot the install''. Once that comes up, you can always install whichever other [Kernel] you like.) Or else you can build your own boot [Kernel]. |
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!! See also |
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* [PXE] |
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* LinuxInstallationNotes |
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AristotlePagaltzis |
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---- |
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Part of CategoryHowto, CategoryNetworking |
