✎ httpboot - Etherboot/gPXE Wiki

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o====== HTTP booting ======

{{ screenshots/uniboot1.png?360x200|Linux booting via HTTP}}

Booting from HTTP with gPXE is as simple as replacing the DHCP filename field with an %%http://%% URL.  For example, if you currently have ///etc/dhcpd.conf// containing

    next-server my.tftp.server;
    filename "/pxe.0";

then you can just copy //pxe.0// to your web server and edit ///etc/dhcpd.conf// to contain

    filename "http://my.web.server/pxe.0";

===== Scalability =====

HTTP can handle much larger files than TFTP, and scale to much larger distances.  You can easily download multi-megabyte files, such as a Linux kernel and a root filesystem, and you can download from servers that are not on your local area network.  We have successfully tested booting across the Atlantic using HTTP!

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