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Wrap a EFI stub loader with vmlinuz, initrd, and a short commandline inside a single EFI binary. Two files are generated: - mobylinux.efi is a raw EFI file which some hypervisors can boot directly - mobylinux-efi.iso: ISO image with just MobyLinux in the EFI partition also: - rename legacy BIOS mobylinux.iso to mobylinux-bios.iso - Build mobylinux-efi.iso as part of the standard mobylinux build Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
56 lines
2.3 KiB
Docker
56 lines
2.3 KiB
Docker
# Create a EFI Bootable ISO
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FROM ubuntu:15.10
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RUN apt-get update && apt-get -y upgrade && apt-get -y install \
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binutils mtools dosfstools xorriso \
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gdisk qemu
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RUN mkdir -p /tmp/efi
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COPY initrd.img.gz /tmp/efi
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COPY kernel/vmlinuz64 /tmp/efi
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COPY packages/gummiboot/linuxx64.efi.stub /tmp/efi
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# Create a EFI boot file with kernel and initrd. From:
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# https://github.com/haraldh/mkrescue-uefi/blob/master/mkrescue-uefi.sh
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RUN cd /tmp/efi && \
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echo "earlyprintk=serial console=ttyS0" > cmdline.txt && \
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objcopy \
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--add-section .osrel=/etc/os-release --change-section-vma .osrel=0x20000 \
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--add-section .cmdline=./cmdline.txt --change-section-vma .cmdline=0x30000 \
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--add-section .linux=./vmlinuz64 --change-section-vma .linux=0x40000 \
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--add-section .initrd=initrd.img.gz --change-section-vma .initrd=0x3000000 \
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./linuxx64.efi.stub \
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mobylinux.efi
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# create a ISO with a EFI boot partition
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RUN cd /tmp/efi && \
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mkdir -p iso && \
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dd if=/dev/zero of=iso/efi.raw bs=1024 count=70000 && \
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mkfs.vfat iso/efi.raw && \
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mmd -i iso/efi.raw ::/EFI && \
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mmd -i iso/efi.raw ::/EFI/BOOT && \
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mcopy -i iso/efi.raw mobylinux.efi ::/EFI/BOOT/BOOTX64.EFI && \
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xorriso -as mkisofs \
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-R -f -e efi.raw -no-emul-boot -o mobylinux-efi.iso iso
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# How to build a VHDX. Commented out because we are currently not using it
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# Don't delete: It took too long to figure out how to do this...
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# # create a disk image (150MB)
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# # This is a little odd, as we run this as part of the default command.
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# # Can't run this during the build step as it requires privilege.
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# # The Magic numbers in losetup are startsector (2048) times 512 and
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# # (endsector - startsector) * 512
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# CMD cd /tmp/efi && \
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# dd if=/dev/zero of=disk.raw bs=1024 count=51200 && \
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# sgdisk -N 1 -t 1:ef00 disk.raw && \
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# losetup -o 1048576 --sizelimit 51362816 /dev/loop/1 disk.raw && \
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# mkfs.vfat /dev/loop/1 && \
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# echo "drive c: file=\"/dev/loop/1\" mtools_skip_check=1" > /etc/mtools.conf && \
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# mmd c:/EFI && \
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# mmd c:/EFI/BOOT && \
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# mcopy mobylinux.efi c:/EFI/BOOT/BOOTX64.EFI && \
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# losetup -d /dev/loop/1 && \
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# qemu-img convert -O vhdx disk.raw mobylinux-boot.vhdx && \
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# cp /tmp/efi/mobylinux.efi /tmp/efi/mobylinuxefi.iso /tmp/efi/mobylinux-boot.vhdx /mnt/
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