Handle module alias properly

Some modules (like ext4) provide aliases by which the modules
can be accessed, too. But when using aliases directly dracut
fails to include the correct module. So translate the alias
into the correct module name before checking the module.

References: bnc#886839

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Thomas Renninger <trenn@suse.de>

diff --git a/dracut-functions.sh b/dracut-functions.sh
index edd8ea9ef0b40d4fc45a6e354cae19cf2b7034e4..7a12a7643162cad4b885c36e93ba94df348fac62 100755 (executable)
--- a/dracut-functions.sh
+++ b/dracut-functions.sh
@@ -1689,6 +1689,13 @@ instmods() {
             --*) _mpargs+=" $_mod" ;;
             *)
                 _mod=${_mod##*/}
+                # Check for aliased modules
+                _modalias=$(modinfo -k $kernel -F filename $_mod 2> /dev/null)
+                _modalias=${_modalias%.ko}
+                if [ "${_modalias##*/}" != "$_mod" ] ; then
+                    _mod=${_modalias##*/}
+                fi
+
                 # if we are already installed, skip this module and go on
                 # to the next one.
                 if [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && \