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iso (and a ramdisk is needed also for Windows 7 install from. efi file from a "loopback" device is - I believe - similar to the reason why Firadisk or Winvblock is needed for grub4dos booting Windows XP / PE's 1.x from. the one that in the screenshot you posted:Ĭan you post a more complete description of this "BIOS.IMG" or a screenshot of Isobuster or Ultraiso showing it? I am not sure to understand what you mean by "BIOS.IMG"ĭo you mean the "no-emulation bootsector" or "no-emulation image"? efi file, see:Ĭdob surely will be able to comment more appropriately on this. the \efi\microsoft\boot\efisys.bin is a "whole" image, a FAT 1.44 Mb floppy one, that contains the \efi\boot\*.efi and that can thus be chainloaded by GRUB2 as if it was the EFI image).īUT I wouldn't be so sure that the GRUB2 loopback approach does actually work chainloading a. iso, these files are also in the "normal" part of the CD/DVD, I believe that there are different kinds (how surprising ) of EFI/UEFI implementations, one, if you want more "strict", that looks for the "EF" image, and one that parses the UDF filesystem and finds the files in the "normal" part of the CD/DVD and these CD/DVD's are made in the attempt to cover all possibilties.Īlso, the mentioned "dual mode" switches for OSCDIMG use a somewhat third approach, linking to the efisys.bin file "directly" (i.e. there is a floppy image that contains a bootia32.efi or a boot圆4.efi or a bootia64.efi in folder \efi\boot\, probably that is the file to be chainloaded More technically it attempts to parse the "Large sectors" of the FAT image and if they are 0 it parses the "Small sectors". The posted batch was "targeted" to a "large" image only my bad.įind attached a modified version 0.02 of the batch that takes into account "small" images. iso's (which is a "1.44 Mb floppy image" even if the "type" is "No-emulation"). iso is likely to use an approach for EFI similar to the "standard" Windows 8/8.1.
BOOT.BIF DOWNLOAD FOR ISO HOW TO
The bigger question remains an unsolved mystery: How to boot the latest ATIH_WinPE.iso with Grub2? Edited Septemby zamaracĪs said, the PE based. Is it possible to improve your batch in a way, so it can point to the BIOS.img as well? Not sure if it even exists, since mentioned Linux and WinPE ATIH 2015 ISOs were presumingly generated from UEFI Windows 8.1, but it should as they are made (according to Acronis KB) to be universally bootable on BIOS & UEFI systems. ISOBuster doesn't seem to show its BIOS.img content either.
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Also ImDisk can't mount saved 2014 Boot.img - probably due to unknown offset. The file itself is CLEAN as reported.Īnother issue is, while UltraISO is able to extract (ElTorito BIOS) Boot.bif from a mounted ATIH2014_Linux.iso (but not EFI.img), and then Save As it to Boot.img or extract content to a folder, it can't extract BIOS.bif from a mounted ATIH2015_Linux.iso. B) You might consider downloading ATIH2015_WinE5.iso for the batch refinement - just follow safe download instructions. Instead the entire 500MB ISO or IMG must be mounted by ImDisk to view EFI.img content, and its unclear, how to extract the EFI.img. Still "half-assed", since with ATIH WinPE based ISOs (and possibly with Linux based, where EFI.img is very small) it doesn't show size in sectors or bytes in a way that would allow ImDisk to mount the EFI.img.
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Useful batch! It works well for ATIH Linux based ISOs.
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