48 lines
1.2 KiB
Bash
48 lines
1.2 KiB
Bash
#!/usr/bin/env bash
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# inspired by https://github.com/oraoto/archlinux-firecracker/blob/master/scripts/build-arch-rootfs.sh
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DISK_SIZE=4G
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DISK_FILE=../output/arch-rootfs.ext4
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DISK_ROOT=../output/mount
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cd $(dirname "${BASH_SOURCE[0]}")
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# Allocate rootfs disk
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fallocate -l 4G $DISK_FILE
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mkfs.ext4 $DISK_FILE
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# Mount rootfs to mount
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mkdir -p $DISK_ROOT
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sudo mount $DISK_FILE $DISK_ROOT
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yes y | sudo pacstrap -i -c $DISK_ROOT bash filesystem systemd-sysvcompat pacman iproute2
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echo "nameserver 1.1.1.1" | sudo tee $DISK_ROOT/etc/resolv.conf
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sudo tee $DISK_ROOT/etc/systemd/system/firecracker-network.service <<-'EOF'
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[Unit]
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Description=Firecracker Network
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[Service]
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Type=oneshot
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ExecStart=ip link set eth0 up
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ExecStart=ip addr add 172.16.0.2/24 dev eth0
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ExecStart=ip route add default via 172.16.0.1 dev eth0
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RemainAfterExit=yes
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[Install]
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WantedBy=multi-user.target
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EOF
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sudo ln -s /etc/systemd/system/firecracker-network.service $DISK_ROOT/etc/systemd/system/multi-user.target.wants/
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# Remove default (locked) root password
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# See https://github.com/archlinux/svntogit-packages/commit/0320c909f3867d47576083e853543bab1705185b
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sudo sed 's/^root:.*/root::14871::::::/' -i $DISK_ROOT/etc/shadow
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sudo umount $DISK_ROOT
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rmdir $DISK_ROOT
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