2026-01-23 08:55:18 +01:00
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#!/bin/bash
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set -eux
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# from vm to make a shared folder
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echo "cheat sheet: mount -t 9p -o trans=virtio hostshare /mnt"
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# --- Configurable defaults ---
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ISO_URL="https://mirror.arizona.edu/archlinux/iso/latest/archlinux-x86_64.iso"
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ISO=${1:-$(basename $ISO_URL)}
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IMG=${2:-disk_qemu.qcow2}
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SIZE=${3:-16G}
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RAM=${4:-2G}
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CPUS=${5:-2}
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SHARE=${6:-$PWD/share}
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# --- Setup ---
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mkdir -p "$SHARE"
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echo "iso = $ISO"
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[ -f "$ISO" ] || wget "$ISO_URL"
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[ -f "$IMG" ] || qemu-img create -o nocow=on -f qcow2 "$IMG" "$SIZE"
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# --- Optional install script ---
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# Drop any file named install.sh in ./share to execute it inside the VM later:
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# e.g. `bash /mnt/share/install.sh` after mounting
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# --- Run QEMU with graphics + shared folder ---
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qemu-system-x86_64 \
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-enable-kvm \
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-m "$RAM" \
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-cpu host \
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-smp "$CPUS" \
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-cdrom "$ISO" \
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2026-03-10 19:16:17 +01:00
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-nic user \
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-drive file="$IMG",format=qcow
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#-boot d \
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# -netdev user,id=net0,dns=1.1.1.1 \
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# -device virtio-net-pci,netdev=net0 \
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# -display default,show-cursor=on \
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# -virtfs local,id=share,path="$SHARE",security_model=none,mount_tag=hostshare
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2026-01-23 08:55:18 +01:00
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