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freebsd: Document how to build UEFI app on FreeBSD #52

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13 changes: 13 additions & 0 deletions README.md
View file Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -123,6 +123,8 @@ cargo build -p framework_tool
ls -l target/debug/framework_tool

# Build the UEFI application
# Needs mtools installed via your OS package manager
# See in FreeBSD section for building on FreeBSD
# Can't be built with cargo! That's why we need to exclude it in the other commands.
make -C framework_uefi
ls -l framework_uefi/build/x86_64-unknown-uefi/boot.efi
Expand Down Expand Up @@ -311,3 +313,14 @@ cargo build --no-default-features --features freebsd
# Running the tool
cargo run --no-default-features --features freebsd
```

Build UEFI tool

```
# Build just tool
gmake -C framework_uefi build/x86_64-unknown-uefi/boot.efi

# Build QEMU image
# TODO: Does not work yet, need a replacement for GNU parted
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@JohnAZoidberg JohnAZoidberg Aug 6, 2024

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@aokblast is there a scripted way to format a disk image on FreeBSD?
On Linux I used GNU parted.

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@aokblast aokblast Aug 6, 2024

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Hello, we have gpart which is the abbriviate of geom part that enable you to create and add partition. I found a post on stack exchange that have examples about this. Do I answer your question?

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@aokblast aokblast Aug 6, 2024 •
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Oh, you are talking about image. We have mkimg which can be used as following pattern (stolen from my previous commit :) )

cfgdirname=$(mktemp -d /tmp/config.XXXXX)
cp ${BASEBITSDIR}/etc/bsdinstall.example ${cfgdirname}
makefs -D -B little -t msdos -o fat_type=16 -o volume_label=CONFIG -o create_size=16m ${2}.config ${cfgdirname}
mkimg -s mbr \
 -b ${BASEBITSDIR}/boot/mbr \
 -p efi:=${espfilename} \
 -p freebsd:-"mkimg -s bsd -b ${BASEBITSDIR}/boot/boot -p freebsd-ufs:=${2}.part" \
 -p fat16b:=${2}.config\

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@JohnAZoidberg JohnAZoidberg Aug 7, 2024

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oh! That's cool. That looks super easy!

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@JohnAZoidberg JohnAZoidberg Aug 7, 2024

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Haven't tried, but might be as simple as this:

$(BUILD)/boot.img: $(BUILD)/boot.efi
 mkimg -s gpt \
 -p efi:=$<

But how can I use different make rules on FreeBSD 🤔

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@aokblast aokblast Aug 7, 2024

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What is the make rules you mentioned? Could you give me some detailed example?

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@aokblast aokblast Aug 7, 2024

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Oops, I forget some code segment. You have to create a partition image by mkfs than put file into it by directory. After that, you can use mkimg to create a full disk image. Here is a patch use this feature. You can take a release/amd64/make-memstick.sh as example. Hope I answered your question.

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@JohnAZoidberg JohnAZoidberg Aug 9, 2024

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Done! Now we just need to make sure it uses different commands on linux vs bsd

gmake -C framework_uefi MKFS=newfs_msdos
```
32 changes: 13 additions & 19 deletions framework_uefi/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -3,42 +3,36 @@ BUILD=build/$(TARGET)

SRC_DIR=.

# sudo pkg install qemu edk2-qemu-x64
QEMU?=qemu-system-x86_64
OVMF_FD?=/usr/local/share/edk2-qemu/QEMU_UEFI-x86_64.fd
QEMU_FLAGS=\
-M q35 \
-m 1024 \
-net none \
-vga std \
-bios /usr/share/OVMF/OVMF_CODE.fd
-bios /usr/local/share/edk2-qemu/QEMU_UEFI-x86_64.fd

.PHONY: qemu clean

all: $(BUILD)/boot.img

$(BUILD)/boot.img: $(BUILD)/boot.efi
mkdir -p temp/EFI/BOOT
cp $(BUILD)/boot.efi temp/EFI/BOOT/bootx64.efi
makefs -t msdos \
-o fat_type=16 \
-o sectors_per_cluster=1 \
-s 10000k \
$(BUILD)/boot.img temp
rm -rf temp

clean:
rm -r $(BUILD)

qemu: $(BUILD)/boot.img
$(QEMU) $(QEMU_FLAGS) $<

# Create ESP partition and filesystem
$(BUILD)/boot.img: $(BUILD)/efi.img
dd if=/dev/zero of=$@.tmp bs=512 count=100352
parted $@.tmp -s -a minimal mklabel gpt
parted $@.tmp -s -a minimal mkpart EFI FAT16 2048s 93716s
parted $@.tmp -s -a minimal toggle 1 boot
dd if=$< of=$@.tmp bs=512 count=98304 seek=2048 conv=notrunc
mv $@.tmp $@

# Create filesystem with updater (bootx64.efi)
$(BUILD)/efi.img: $(BUILD)/boot.efi
dd if=/dev/zero of=$@.tmp bs=512 count=98304
mkfs.vfat $@.tmp
mmd -i $@.tmp efi
mmd -i $@.tmp efi/boot
mcopy -i $@.tmp $< ::efi/boot/bootx64.efi
mv $@.tmp $@

$(BUILD)/boot.efi: ../Cargo.lock $(SRC_DIR)/Cargo.toml $(SRC_DIR)/src/*
mkdir -p $(BUILD)
cargo rustc \
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