Chris Adams writes: > Once upon a time, isdtor <isdtor at gmail.com> said: > > Yes, it looks like I'm out of luck and need to find a newer machine to test this with. Moving the tftp server works to an extent - server boots right into a grub prompt. > > Weird. I have a couple of Intel-based systems that do UEFI PXE boot > okay, but they're much newer than the 11th gen PowerEdge (I have some of > those still in service but they're not running UEFI mode). Also, > they're client-type systems, not servers (a Thinkpad notebook and an > Intel NUC), so possibly different firmware base. > > I vaguely remember in the distant past having some kind of problem like > this, and I think on those systems, I used a boot floppy (yes, that long > ago!) with gPXE on it. Not too happy to revive this old thread ... Has anyone managed to UEFI/PXE boot CentOS6? I managed to find newer hw and have this working perfectly with CentOS7. With 6, however, I again cannot boot beyond a grub prompt. CentOS7 bootx64.efi does not work for CentOS6 as it complains "kernel too old". Booting with CentOS6 /boot/efi/EFI/redhat/grub.efi, and the older style pxe config file as per https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/installation_guide/s1-netboot-pxe-config-efi results in a grub (legacy) prompt on the target machine.