Michael Brown 1fbc3bca70 [efi] Automatically open network device matching loaded image device path
It is unintuitive to have to include an "ifopen" at the start of an
autoexec.ipxe script.  Commit efe8126 ("[cachedhcp] Automatically open
network device matching cached DHCPACK") causes the chainloaded device
to be opened automatically, using the cached DHCPACK to identify the
chainloaded device.

In the case of a UEFI HTTP(S) boot, the firmware does not provide
access to the DHCPACK and we are forced to instead extract the very
limited amount of information encoded into the loaded image's device
path.

Mark the device matching the loaded image's device path to be opened
automatically, so that the chainloaded device will be opened in the
same way for both TFTP and HTTP(S) boots.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
2026-03-02 00:08:18 +00:00
2015-02-26 17:59:53 +00:00

iPXE network bootloader

Build Coverity Release

iPXE is the leading open source network boot firmware. It provides a full PXE implementation enhanced with additional features such as:

  • boot from a web server via HTTP or HTTPS,

  • boot from an iSCSI, FCoE, or AoE SAN,

  • control the boot process with a script,

  • create interactive forms and menus.

You can use iPXE to replace the existing PXE ROM on your network card, or you can chainload into iPXE to obtain the features of iPXE without the hassle of reflashing.

iPXE is free, open-source software licensed under the GNU GPL (with some portions under GPL-compatible licences).

You can download the rolling release binaries (built from the latest commit), or use the most recent stable release.

For full documentation, visit the iPXE website.

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