Locad iso in ram grub2 iso#
The Ubuntu family all contain the same ISO file structure and format. Mounting the ISO as detailed in the Exploring_the_ISO_Contents section of the Grub2/ISOBoot guide may help determine the proper entries.Īdditionally, the user can search the Internet for menuentry examples or seek advice in forums specializing in the specific OS or utility. If an example of a desired ISO is not listed, the user may be able to determine the proper menuentry commands by comparing the file structure of the ISO with the menuentry commands of ISOs laid out in a similar fashion. General information on creating a GRUB 2 menuentry is provided on the Grub2/ISOBoot page. This page has been created to allow Ubuntu contributors to provide known, working menuentries for the ISOs of popular Linux and utility discs.
Locad iso in ram grub2 code#
WinPe starts to boot but there is an error code 0xc0000428 (The digital signature for this file couldn’t be verified). Using the following entries WinPE was correctly loaded from the USB Flash drive :Ĭhainloader (hd0,msdos1)/EFI/Boot/boot圆4_winpe.efiĪfter that, I've copied the WinPE ISO to the USB flash drive and added a menu entry: Grub2 is loaded and it's shown grub's menu. Then I've copied the grub2's files to the flash drive (including \EFI\boot\boot圆4.efi from GRUB2).
Renamed \EFI\boot\boot圆4.efi (WinPE) to \EFI\boot\boot圆4_winpe.efi A new method would have to be found, such as writing an EFI virtual optical disk. Not going to get the CD/DVD emulation in the manner that grub4dos does, though, if this method is attempted. A better idea might be to modify Grub2 and put in some of the capabilities that grub4dos has. Now, CSM is just an EFI module, so this could probably be done. The reason is that when UEFI exits, the system is not in real-mode, unless you have CSM enabled. For it to work under UEFI, it would probably have to include its own CSM. I wouldn't personally expect that grub4dos will eventually work in UEFI, because grub4dos is a real-mode program. I'm sure it will not be long before g4d will work under secure boot, but it will be limited I assume as many of my ISO will not pass the digital signature secure boot looks for when trying to boot an item.
Locad iso in ram grub2 windows 8#
I know the "purpose" of it and I get it (not really), just seems that it has almost made it impossible to do any repair work on Windows 8 machines as far as techs go.
Every Asus I have worked on, I just enable CSM in bios and secure boot is bypassed but like you said, Acer or in my experience, Acer Tablets, secure boot can't be "by passed" or "turned off" but my Win8PE SE x86 and 圆4 from a USB drive show up under secure boot and (U)EFI bios just fine and with the proper files in the EFI folder on root of my USB drive, I have no issue booting my PE stuff but I still miss my g4d, as it would boot my hard drive testing ISO and would be nice if need be to test a Windows 8 HDD with my favorite ISO that nothing will load under secure boot so that's why I have labeled secure boot as crap.
Other manufacturers like Asus make it optional.Īsus did a great job (for now) of being able to turn of secure boot. What is crap is the Acer support for secure boot.
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