Ok guys let's figure this out: how do I find where the windows install iso stores it's bootloader code, because that's what I need to find. Afaict they basically nuked the hell out of iso9660 for windows 10 bootable CDs, but the bootloader is there somewhere.
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Replying to @hedgeberg
They all should be EFI by now, aren’t they? EFI/BOOT/bootx64.efi
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Replying to @honorary_bot
Except that the windows boot iso does not seem to have anything resembling a file structure and I am a novice at PC bootchains
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Replying to @hedgeberg @honorary_bot
It definitely has a file structure (at least a recent Windows Server 2016 image I'm looking at does). Try 7-zip to extract the ISO, it usually knows how to pull out El Torito images IIRC. For my image the EFI floppy images wind up at efi/microsoft/boot/efisys[_noprompt].bin
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Replying to @marcan42 @honorary_bot
Dude see newest tweet, didn't need infodump just needed different machine.
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Replying to @hedgeberg @honorary_bot
Yeah, sorry, I saw it after the replies. Weird, what tool were you using to extract the contents?
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Replying to @marcan42 @honorary_bot
Nautilus, which... Idfk what it was using for a backend. I was being lazy, ths machine I was testing this on was my airgap laptop since it was convenient, but it's horribly out of date too. I copied the windows iso's files and the uefi literally finds it without chainloading.
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It was one of those moments of "ok and now let's reboot and come back" and I came back to an "install Windows" screen and I was not remotely prepared for it to be working yet. It's almost /more/ upsetting when something works when it shouldn't than when it doesn't work at all.
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I know the feeling. It's frustrating when something works and you don't know *why* it works. What is this sorcery?!
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