IIRC the line 49 RRQ "/pxelinux/efidefault" octet tsize 0 blksize 512 In the output below means look in /var/lib/tftpboot//pxelinux/efidefault Not /var/lib/tftpboot//pxelinux/pxelinux.cfg/efidefault i.e. it is rooted at the root of your tftpboot structure.
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-----Original Message----- From: Adam Bishop [mailto:Adam.Bishop@ja.net] Sent: Monday, April 14, 2014 10:57 AM To: centos@centos.org Subject: [CentOS] PXE booting UEFI
Good Afternoon,
As per the installation guide, section 30.2.2 I’ve created an efidefault file at /var/lib/tftpboot/pxelinux/pxelinux.cfg/efidefault
However, this file is never requested by the 64 bit PXE loader (bootx64.efi), as shown by tcpdump:
75 RRQ "/pxelinux/42272635-0011-5053-ACF2-82A100E615F2" octet tsize 0 blksize 512 59 RRQ "/pxelinux/01-00-50-56-A7-BA-BF" octet tsize 0 blksize 512 47 RRQ "/pxelinux/C13F3F6E" octet tsize 0 blksize 512 46 RRQ "/pxelinux/C13F3F6" octet tsize 0 blksize 512 45 RRQ "/pxelinux/C13F3F" octet tsize 0 blksize 512 44 RRQ "/pxelinux/C13F3" octet tsize 0 blksize 512 43 RRQ "/pxelinux/C13F" octet tsize 0 blksize 512 42 RRQ "/pxelinux/C13" octet tsize 0 blksize 512 41 RRQ "/pxelinux/C1" octet tsize 0 blksize 512 40 RRQ "/pxelinux/C" octet tsize 0 blksize 512 49 RRQ "/pxelinux/efidefault" octet tsize 0 blksize 512
I’ve worked around this by placing a separate efidefault in the root of the pxelinux directory - however this is undesirable as this means I have to maintain separate configs for BIOS and UEFI.
Does anyone know why this is not behaving as documented?
Regards,
Adam Bishop Systems Development Specialist
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