Hi Michael,
I have checked the files in the two ISO's ( one generated from the old geniso and one from teh new genfsimg ), and the files in them are very different. I have tried booting both ISO's from a VM on an ESXi host the the VM set first to BIOS and then to EFI boot. Results are : Set to BIOS boot : both ISO files will boot. Set to EFI boot : only the ISO generated with the old geniso file will boot. The one generated with the new genfsimg image is not seen as a bootable ISO file. It is not a great problem ... I have just added the old geniso file into src/util and I use that one to generate the ISO's. It is just strange that the new genfsimg does not seem to be creating a hybrid ISO file ... or at least not one that I am able to use in any of our environments. Dean. ----- Original Message ----- From: "Michael Brown" <mc...@ipxe.org> To: "Dean Westhead" <d...@westhead.net> Cc: "ipxe-devel" <ipxe-devel@lists.ipxe.org> Sent: Tuesday, 5 October, 2021 21:24:41 Subject: Re: [ipxe-devel] Generating a BIOS/UEFI hybrid ISO image On 05/10/2021 15:18, Dean Westhead wrote: > Yes ... that is what i have been trying .... and failing ! hehe ! > > it all "makes" without any errors and after installing the xorriso package > the genfsimg runs without any errors too. > > The only problem is that the outputted combined.iso will not boot a Dell UEFI > laptop and RUFUS only sees the ISO as BIOS only too. > > If I copy over to the src/util directory the old geniso file and add the rule > into into the Makefile.pcbios to use it, the resultant > ISO file works fine on both BIOS and UEFI machines. > > The ISO file is also about 1Mb smaller when created with the genfsimg than > with the geniso file .... almost like it is failing to add the > bin-x86_64-efi/ipxe.efi file. Did you try comparing the contents of the .iso images generated through both methods, including the contents of the embedded UEFI boot image (the ESP)? Michael _______________________________________________ ipxe-devel mailing list ipxe-devel@lists.ipxe.org https://lists.ipxe.org/mailman/listinfo/ipxe-devel