XCP-NG 8.3 kernel loading issue in EFI mode with iPXE + multiboot2 patches

[netmax79]

Hi,

i just tried to invenst some time to get XCP-NG installer booted in EFI mode using iPXE + multiboot2 patches.

It's working fine for XCP-NG 8.2.1 but not for the new 8.3.0 release. It looks like the kernel behaves somewhat different. Maybe there were some changes in the build process?

The resulting error message from iPXE is:

ipxe: Could not boot: Requested memory not available (https://ipxe.org/46038185)

[olivierlambert]

Just a thought: could you try to use iPXE with debug mode in case it provides more info?

[netmax79]

That task is already on my list, i will report back results once i tried that.

[netmax79]

I just rebuild iPXE with DEBUG=segment, the resulting error is:

ipxe: Preparing segment [200000,836380,c00000)
ipxe: Segment [200000,836380,c00000) does not fit into available memory
ipxe: Could not boot: Requested memory not available (https://ipxe.org/46038185)

[netmax79]

After some more testing, it seems that this is only happening on my test VM which is running on an XCP-NG 8.2 Host.
I tried to boot the same iPXE stack physical hardware (DELL R660) and that seems to work without any issue.

The problem is still a bit weird because the older installer (8.2.1) boots just fine also in a VM.