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booting mips64el Linux in qemu using Windows NT4 ARC ROM
Raw
Dockerfile
# Dockerfile to build a bootable Debian image for MIPS Magnum platform using GRUB as bootloader
# Steps to build and run:
# mkdir tmpdir && cd tmpdir
# podman build -v $(pwd):/workspace --target build .
# podman build -v $(pwd):/workspace --target grubexe .
# podman build -v $(pwd):/workspace --device /dev/fuse --cap-add SYS_ADMIN --target rootfs .
# podman build -v $(pwd):/workspace --target final .
# qemu-system-mips64el -M magnum -m 128 -net nic -net user -global ds1225y.filename=nvram -bios NTPROM.RAW -hda disk.img
# rootfs may take a while, you can use your host debootstrap to speed it up.
# GRUB actually faults after loading the kernel/initrd, this also happens on when using
# mips-arc on a SGI Indy
FROM debian:latest as build
RUN apt-get update && \
apt-get install -y git automake libtool pkg-config make gettext autopoint libx11-dev libpci-dev libpng-dev libfreetype-dev gcc-mipsel-linux-gnu python3 flex bison gawk fonts-dejavu xfonts-unifont help2man libfuse3-dev libtasn1-dev libdevmapper-dev liblzma-dev && \
rm -rf /var/lib/apt/lists/* && \
apt-get clean
ADD https://git.savannah.gnu.org/git/grub.git /grub
WORKDIR /grub
VOLUME /workspace
RUN mkdir -p /workspace/grub && \
./bootstrap && \
./configure --target=mipsel-linux-gnu --with-platform=arc --prefix=/workspace/grub 'TARGET_CFLAGS=-Wa,-march=r4000 -mips3' 'TARGET_CCASFLAGS=-Wa,-march=r4000 -mips3'
RUN make
RUN make install
FROM debian:latest as rootfs
RUN apt-get update && apt-get install -y debootstrap e2fsprogs qemu-user-static guestmount && \
rm -rf /var/lib/apt/lists/* && \
apt-get clean
VOLUME /workspace
WORKDIR /workspace
RUN <<EOF cat > mkroot.sh && chmod +x mkroot.sh && ./mkroot.sh
#!/bin/bash
set -euo pipefail
DISKNAME=rootfs.ext4
TOTAL_SZ=2G
MOUNTDIR=\$(mktemp -d)
cleanup() {
guestunmount "\$MOUNTDIR" || true
rmdir "\$MOUNTDIR"
}
trap cleanup EXIT
truncate -s \$TOTAL_SZ \$DISKNAME
mkfs.ext4 \$DISKNAME
guestmount -a \$DISKNAME -m /dev/sda "\$MOUNTDIR"
debootstrap --foreign --arch=mipsel --variant=minbase --components=main,non-free bookworm "\$MOUNTDIR" http://deb.debian.org/debian/
cp /usr/bin/qemu-mipsel-static "\$MOUNTDIR"/usr/bin/
chroot "\$MOUNTDIR" /bin/bash <<EOT
/debootstrap/debootstrap --second-stage
apt install -y locales
locale-gen en_US.UTF-8
echo -e "password\npassword" | passwd
apt install -y linux-image-4kc-malta
EOT
cp "\$MOUNTDIR"/vmlinux .
cp "\$MOUNTDIR"/initrd.img .
EOF
FROM debian:latest as grubexe
RUN apt-get update && apt-get install -y libdevmapper1.02.1 libarchive13 && \
rm -rf /var/lib/apt/lists/* && \
apt-get clean
VOLUME /workspace
WORKDIR /workspace
RUN /workspace/grub/bin/grub-mkimage -O mipsel-arc -p "(arc/scsi0/disk0/rdisk0,msdos1)/grub" -o grub.exe disk part_msdos normal fat
FROM debian:latest as final
RUN apt-get update && apt-get install -y wget unzip dosfstools mtools fdisk && \
rm -rf /var/lib/apt/lists/* && \
apt-get clean
VOLUME /workspace
WORKDIR /workspace
RUN <<EOF cat > grub.cfg
set pager=1
set timeout=30
set timeout_style=menu
set default=debian
menuentry "Debian GNU/Linux, with Linux" --class debian --class gnu-linux --class gnu --class os -id debian {
echo 'Loading Linux kernel ...'
linux (arc/scsi0/disk0/rdisk0,msdos1)/vmlinux root=/dev/sda2
echo 'Loading initial ramdisk ...'
initrd (arc/scsi0/disk0/rdisk0,msdos1)/initrd.img
}
EOF
RUN <<EOF cat > ./mkboot.sh && chmod +x mkboot.sh && ./mkboot.sh
#!/bin/bash
set -euo pipefail
DISKNAME=boot.fat
BOOTDIR=\$(mktemp -d)
ROUND_TO=1M
cp -r /workspace/grub/lib/grub "\$BOOTDIR"
cp vmlinux "\$BOOTDIR"
cp initrd.img "\$BOOTDIR"
cp grub.cfg "\$BOOTDIR"/grub/grub.cfg
mkdir -p "\$BOOTDIR"/os/nt/
cp grub.exe "\$BOOTDIR"/os/nt/osloader.exe
DIR_SZ=\$(du -sb "\$BOOTDIR" | cut -d $'\t' -f1)
BUFFER_SZ=\$((1024 * 1024))
TOTAL_SZ=\$((DIR_SZ + BUFFER_SZ))
truncate -s \$TOTAL_SZ \$DISKNAME
truncate -s %"\$ROUND_TO" \$DISKNAME # Round to nearest N-MB
truncate -s ">16M" \$DISKNAME # Ensure minimum size of 16MB
mkfs.vfat -F 16 \$DISKNAME
mcopy -i \$DISKNAME -s "\$BOOTDIR"/* ::
rm -rf "\$BOOTDIR"
EOF
RUN <<EOF cat > ./mkimage.sh && chmod +x ./mkimage.sh && ./mkimage.sh
#!/bin/bash
set -euo pipefail
DISKNAME=disk.img
ROUND_TO=1M
ROOTFS_SZ=\$(stat -c %s rootfs.ext4)
BOOTFS_SZ=\$(stat -c %s boot.fat)
BOOTBUFFER_SZ=4096
BOOTPART_SZ=\$(( BOOTFS_SZ + BOOTBUFFER_SZ ))
BOOTPART_SZ_K=\$(( (BOOTPART_SZ + 1023) / 1024 ))
BUFFER_SZ=4096
TOTAL_SZ=\$((ROOTFS_SZ + BOOTFS_SZ + BUFFER_SZ))
echo "Total size: \$TOTAL_SZ"
truncate -s \$TOTAL_SZ \$DISKNAME
truncate -s %"\$ROUND_TO" \$DISKNAME
cat <<EOT | fdisk -u \$DISKNAME
o
n
p
+\${BOOTPART_SZ_K}K
t
6
n
p
w
EOT
BOOT_OFFSET=\$(partx -n 1 -go START disk.img)
ROOT_OFFSET=\$(partx -n 2 -go START disk.img)
dd if=boot.fat of=\$DISKNAME seek="\$BOOT_OFFSET" conv=notrunc status=progress
dd if=rootfs.ext4 of=\$DISKNAME seek="\$ROOT_OFFSET" conv=notrunc status=progress
EOF
RUN wget http://web.archive.org/web/20150809205748if_/http://hpoussineau.free.fr/qemu/firmware/magnum-4000/setup.zip && \
unzip -o setup.zip NTPROM.RAW && \
rm setup.zip
RUN echo qemu-system-mips64el -M magnum -m 128 -net nic -net user -global ds1225y.filename=nvram -bios NTPROM.RAW -hda disk.img
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