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working on disk image generation

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mykola2312 2024-08-02 19:44:40 +03:00
parent eac04907e9
commit c8ba7e29e8
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.gitignore vendored
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obj/
bin/

47
Makefile
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CC = gcc
CLFAGS = -g -Wall
LDFLAGS = -g
DISK = bin/disk.img
DISK_SIZE = 268435456
DISK_LOOP = /dev/loop690
PART1_START_SECTOR = 2048
PART1_END_SECTOR = 4096
PART1_ID = 1
PART1_TYPE = 0x9F
PART1_LOOP = /dev/loop691
PART2_START_SECTOR = 6144
PART2_END_SECTOR = 71680
PART2_ID = 2
PART2_TYPE = 0x83
PART2_LOOP = /dev/loop692
PART3_START_SECTOR = 73728s
PART3_END_SECTOR = $$(( ($(DISK_SIZE) / 512) - 1 ))
PART3_ID = 3
PART3_TYPE = 0x83
PART3_LOOP = /dev/loop693
.PHONY: clean
$(DISK):
# create img file
truncate -s 256m $(DISK)
# format img file in MBR and create partitions
sudo losetup $(DISK_LOOP) $(DISK)
sudo parted $(DISK_LOOP) mklabel msdos
sudo parted $(DISK_LOOP) mkpart primary $(PART1_START_SECTOR)s $(PART1_END_SECTOR)s # 1 - test pattern partition
sudo parted $(DISK_LOOP) mkpart primary $(PART2_START_SECTOR)s $(PART2_END_SECTOR)s # 2 - 32MB small EXT2 partition
sudo parted $(DISK_LOOP) mkpart primary $(PART3_START_SECTOR)s $(PART3_END_SECTOR)s # 3 - "root" EXT2 partition
# set MBR partition types
sudo parted $(DISK_LOOP) type $(PART1_ID) $(PART1_TYPE)
sudo parted $(DISK_LOOP) type $(PART2_ID) $(PART2_TYPE)
sudo parted $(DISK_LOOP) type $(PART3_ID) $(PART3_TYPE)
# detach loopback devices
sudo losetup -d $(DISK_LOOP)
clean:
rm -f bin/*
rm -f obj/*