grub
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042F8BFA1B0EF93B
@ -1,5 +1,8 @@
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cmake_minimum_required(VERSION 3.28)
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# grab commands
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include(ExternalProject)
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# dear god
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project(lindows)
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@ -8,19 +11,47 @@ set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake.d/")
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find_package(NTFS3g REQUIRED)
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find_package(CoreUtils REQUIRED)
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find_package(MTools REQUIRED)
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# TODO: find_package for python (for GRUB)
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# TODO: find_package for bison (for GRUB)
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# TODO: find_package for flex (for GRUB)
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# TODO: find_package for sfdisk (for disk image generation)
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# TODO: find_package for mkfs.vfat (for GRUB)
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# TODO: add mmd to mtools
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# TODO: add mkdir to coreutils
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# make c drive mount point
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file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/lindows_c")
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file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/lindows_efi")
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# build grub
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file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/grub")
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ExternalProject_Add(GRUB
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GIT_REPOSITORY "https://git.savannah.gnu.org/git/grub.git"
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GIT_TAG "grub-2.12"
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GIT_SHALLOW TRUE
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GIT_PROGRESS TRUE
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UPDATE_COMMAND "" # the commit is fixed, we will never need to update
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# this should make it stop rebuilding every `make`
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CONFIGURE_COMMAND ./bootstrap
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COMMAND ./configure
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--host=x86_64-pc-linux-gnu
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--target=x86_64
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--with-platform=efi
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--disable-efiemu
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--prefix=${CMAKE_CURRENT_BINARY_DIR}/grub
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BUILD_COMMAND make
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BUILD_IN_SOURCE TRUE
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INSTALL_COMMAND make install
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)
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# this should probably be a shell script, i unfortunately do not care
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add_custom_command(OUTPUT lindows_c.img
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# create empty 16MiB disk image
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# create empty 128MiB disk image
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COMMAND "${CoreUtils_dd_EXECUTABLE}" ARGS
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if=/dev/zero
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of=lindows_c.img
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bs=1M
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count=16
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count=128
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# format disk with new NTFS filesystem
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COMMAND "${NTFS3g_Mkfs_EXECUTABLE}" ARGS -F # scary!
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-L Windows
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@ -31,8 +62,18 @@ add_custom_command(OUTPUT lindows_c.img
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lindows_c.img
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lindows_c
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# create dirs
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# create system folders
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COMMAND mkdir ARGS lindows_c/Windows
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COMMAND mkdir ARGS lindows_c/Windows/GRUB
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COMMAND mkdir ARGS lindows_c/Windows/GRUB/x86_64-efi
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# grub stuff
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COMMAND cp ${CMAKE_CURRENT_BINARY_DIR}/grub/lib/grub/x86_64-efi/* lindows_c/Windows/GRUB/x86_64-efi
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# copy linux kernel from host please replace with custom kernel
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COMMAND cp ARGS /boot/vmlinuz-linux lindows_c/Windows/vmlinuz-linux
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# create users folder
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COMMAND mkdir ARGS lindows_c/Users
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# unmount filesystem
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@ -41,25 +82,36 @@ add_custom_command(OUTPUT lindows_c.img
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# this makes the efi system partition
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add_custom_command(OUTPUT lindows_efi.img
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COMMAND mkdir ARGS -p lindows_efi/
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COMMAND "${CMAKE_CURRENT_BINARY_DIR}/grub/bin/grub-mkimage" ARGS
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-p /Windows/GRUB
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-O x86_64-efi
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-o lindows_efi/grubx64.efi
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-c ${CMAKE_CURRENT_SOURCE_DIR}/src/grub/grub-early.cfg
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part_gpt ntfs
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COMMAND "${CoreUtils_dd_EXECUTABLE}" ARGS
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if=/dev/zero
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of=lindows_efi.img
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bs=1M
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count=16
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COMMAND "${MTools_Format_EXECUTABLE}" ARGS -F -i lindows_efi.img
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count=33
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COMMAND mkfs.vfat lindows_efi.img -F 32
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COMMAND mmd -i lindows_efi.img ::/EFI
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COMMAND mmd -i lindows_efi.img ::/EFI/BOOT
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COMMAND ${MTools_Copy_EXECUTABLE} -i lindows_efi.img lindows_efi/grubx64.efi ::/EFI/BOOT/BOOTX64.EFI
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DEPENDS src/grub/grub-early.cfg
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)
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# make the full disk image
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add_custom_command(OUTPUT lindows.img
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COMMAND echo ARGS label: gpt > disk.sfdisk
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COMMAND echo ARGS unit: sectors >> disk.sfdisk
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COMMAND echo ARGS 1M 16M C12A7328-F81F-11D2-BA4B-00A0C93EC93B - >> disk.sfdisk
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COMMAND echo ARGS 17M 16M EBD0A0A2-B9E5-4433-87C0-68B6B72699C7 - >> disk.sfdisk
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COMMAND echo ARGS 1MiB 33MiB C12A7328-F81F-11D2-BA4B-00A0C93EC93B - >> disk.sfdisk
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COMMAND echo ARGS 34MiB 128MiB EBD0A0A2-B9E5-4433-87C0-68B6B72699C7 - >> disk.sfdisk
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COMMAND "${CoreUtils_dd_EXECUTABLE}" ARGS
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if=/dev/zero
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of=lindows.img
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bs=1M
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count=64
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count=256
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# partition disk
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COMMAND sfdisk ARGS lindows.img < disk.sfdisk
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# write partitions
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@ -67,14 +119,16 @@ add_custom_command(OUTPUT lindows.img
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if=lindows_efi.img
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of=lindows.img
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bs=1M
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count=16
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count=33
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seek=1
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conv=notrunc
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COMMAND "${CoreUtils_dd_EXECUTABLE}" ARGS
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if=lindows_c.img
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of=lindows.img
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bs=1M
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count=16
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seek=17
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count=128
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seek=34
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conv=notrunc
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DEPENDS lindows_c.img lindows_efi.img
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BYPRODUCTS disk.sfdisk
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)
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@ -13,6 +13,8 @@ Defines the following variables:
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True if the system has mtools
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``MTools_Format_EXECUTABLE``
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Path to mformat
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``MTools_Copy_EXECUTABLE``
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Path to mcopy
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#]=============================]
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@ -21,8 +23,12 @@ include(FindPackageHandleStandardArgs)
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# mformat
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find_program(MTools_Format_EXECUTABLE NAMES mformat)
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# mcopy
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find_program(MTools_Copy_EXECUTABLE NAMES mcopy)
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find_package_handle_standard_args(MTools
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FOUND_VAR MTools_FOUND
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REQUIRED_VARS
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MTools_Format_EXECUTABLE
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MTools_Copy_EXECUTABLE
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)
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2
src/grub/grub-early.cfg
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2
src/grub/grub-early.cfg
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@ -0,0 +1,2 @@
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set root=(hd0,gpt2)
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set prefix=($root)/Windows/GRUB
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