43 lines
915 B
Bash
43 lines
915 B
Bash
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#!/bin/sh
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set -e
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if [ $# -lt 1 ]; then
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echo "usage: $0 <dest.img> [version]"
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exit 1
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fi
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dest="$1"
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version="${2:-$(uname -r)}"
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basedir="/lib/modules/$version"
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stagedir=$(mktemp -d)
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trap "rm -rf '$stagedir'" EXIT
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# Copy modules
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mkdir -p "$stagedir/etc"
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mkdir -p "$stagedir/$basedir"
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cp "$basedir"/modules.* "$stagedir/$basedir"
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grep -v '^#' /etc/modules | while read module; do
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modprobe -S "$version" -D "$module" | while read -r action file; do
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mkdir -p "$stagedir/$(dirname "$file")"
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cp "$file" "$stagedir/$file"
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done
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echo "$module" >> "$stagedir"/etc/modules
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done
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# Copy loader
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mkdir -p "$stagedir"/hooks/early
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cat <<'EOF' > "$stagedir"/hooks/early/modules
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#!/bin/sh
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if [ -f /etc/modules ]; then
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while read module; do
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modprobe "$module"
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done < /etc/modules
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fi
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EOF
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chmod +x "$stagedir"/hooks/early/modules
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# Make initramfs
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(cd "$stagedir" && find . | cpio --quiet -H newc -o | gzip -9) > "$dest"
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