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|
#!/bin/bash
# ============================================================================
# run_qemu.sh — Launch QEMU with UEFI firmware
#
# Usage: run_qemu.sh <arch> <disk_image>
#
# Requirements:
# x86_64: OVMF firmware (usually in /usr/share/OVMF/ or /usr/share/edk2/)
# aarch64: AAVMF firmware (usually in /usr/share/AAVMF/ or qemu-efi-aarch64)
# ============================================================================
set -e
ARCH="$1"
DISK="$2"
if [ -z "$ARCH" ] || [ -z "$DISK" ]; then
echo "Usage: $0 <arch> <disk_image>"
exit 1
fi
# ── Find UEFI firmware ─────────────────────────────────────────────────────
find_firmware() {
local candidates=("$@")
for path in "${candidates[@]}"; do
if [ -f "$path" ]; then
echo "$path"
return 0
fi
done
return 1
}
if [ "$ARCH" = "x86_64" ]; then
QEMU=qemu-system-x86_64
# Common OVMF paths across distros
OVMF=$(find_firmware \
/usr/share/OVMF/OVMF_CODE.fd \
/usr/share/edk2/ovmf/OVMF_CODE.fd \
/usr/share/edk2-ovmf/x64/OVMF_CODE.fd \
/usr/share/qemu/OVMF_CODE.fd \
/usr/share/OVMF/OVMF_CODE_4M.fd \
) || {
echo "ERROR: Cannot find OVMF firmware."
echo "Install it: apt install ovmf OR dnf install edk2-ovmf"
exit 1
}
echo "Using OVMF: $OVMF"
echo "Starting QEMU x86_64..."
echo "Press Ctrl+A, X to exit QEMU"
echo "─────────────────────────────────────"
exec $QEMU \
-machine q35 \
-cpu qemu64 \
-m 256M \
-drive if=pflash,format=raw,readonly=on,file="$OVMF" \
-drive format=raw,file="$DISK" \
-serial stdio \
-no-reboot \
-no-shutdown \
-d int,cpu_reset \
-D qemu_log.txt
elif [ "$ARCH" = "aarch64" ]; then
QEMU=qemu-system-aarch64
# Common AAVMF / EDK2 paths
AAVMF=$(find_firmware \
/usr/share/AAVMF/AAVMF_CODE.fd \
/usr/share/qemu-efi-aarch64/QEMU_EFI.fd \
/usr/share/edk2/aarch64/QEMU_EFI.fd \
/usr/share/edk2-aarch64/QEMU_EFI.fd \
) || {
echo "ERROR: Cannot find AAVMF firmware."
echo "Install it: apt install qemu-efi-aarch64 OR dnf install edk2-aarch64"
exit 1
}
echo "Using AAVMF: $AAVMF"
echo "Starting QEMU aarch64..."
echo "Press Ctrl+A, X to exit QEMU"
echo "─────────────────────────────────────"
# Create a pflash variable store (AAVMF needs separate code + vars)
VARS_FILE="${DISK}.vars.fd"
if [ ! -f "$VARS_FILE" ]; then
dd if=/dev/zero of="$VARS_FILE" bs=1M count=64 status=none
fi
exec $QEMU \
-machine virt \
-cpu cortex-a72 \
-m 256M \
-drive if=pflash,format=raw,readonly=on,file="$AAVMF" \
-drive if=pflash,format=raw,file="$VARS_FILE" \
-drive format=raw,file="$DISK" \
-serial stdio \
-no-reboot \
-no-shutdown \
-d int,cpu_reset \
-D qemu_log.txt
else
echo "Unknown architecture: $ARCH"
exit 1
fi
|
