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===== Driver FAQ ===== === How do I check if a network card is supported? === When a PCI network card is detected, its PCI ID is used to identify it and choose an appropriate driver. Each network card driver has a list of PCI IDs it supports. The format of a PCI ID is ''VVVV:DDDD'', where the ''VVVV'' field is called the Vendor ID and the ''DDDD'' field is called the Device ID. - Find out the PCI ID of the network card: * On Linux using ''lspci -nn''. Look for ''Ethernet controller''. * In gPXE using ''show net0/busid''. Ignore for first byte, e.g. busid ''01:10:ec:81:39'' -> PCI ID ''10ec:8139''. - Check if there is a gPXE driver for this PCI ID: * Ask ''gpxebot'' on #etherboot IRC like this: ''gpxebot: lspci 10ec:8139''. * Search the gPXE source code for the Device ID, looking for lines of code like this: PCI_ROM(0x10ec, 0x8139, "rtl8139", "Realtek 8139", 0), === What if there is no driver for my network card? === === Can open source Linux or BSD drivers be used with gPXE? === === How can I use the UNDI driver if there is no native driver? === === Why write native drivers if UNDI works with every network card? ===