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#!/bin/sh
# the part below relates to systemd as init specifically
rpm -q systemd-sysvinit || exit 0
sub() {
local file="$1"
shift
for i in "$@"; do
grep -q "^$i" "$file" || echo "$i" >> "$file"
done
}
# aufs2 root is rw in reality; but don't bother if there's a record already
grep -q '[[:space:]]/[[:space:]]' /etc/fstab ||
sub /etc/fstab '/dev/root / auto defaults 0 0'