mkdumprd does this:

if [ -f /etc/mdadm.conf ]
then
        cp /etc/mdadm.conf $MNTIMAGE/etc
        bin="$bin /sbin/mdadm"
        for i in `cat /etc/mdadm.conf | grep ARRAY | sed -e's/\(^.*level=\)\(.*$\)/\2/' | cut -d" " -f1`
        do
            findmodule $i
        done
fi


My mdadm.conf has this:

ARRAY /dev/md1 uuid=aebf2661:f2abc19d:9b68e17f:deb7fa33
ARRAY /dev/md5 uuid=65b98409:d47e87e6:45d32a1c:5f22a85e

When I run the stuff in backticks against it, I get this output:

$ cat /etc/mdadm.conf | grep ARRAY | sed -e's/\(^.*level=\)\(.*$\)/\2/' | cut -d" " -f1
ARRAY
ARRAY

...the findmodule command then fails to find any module called ARRAY (obviously).