dracut.sh: record the actual hostonly modules for hostonly mode

Previous in commit 7047294, dracut will include the loaded kernel module
list in initramfs, so other tools could check if the loaded kernel
module is changed and rebuild the host only initramfs in case some
module required to boot the machine is missing due to host only install.

It's better to use modalias list generated by dracut-install, that
list includes the device modalias list combined with current loaded
kernel module list. In this way, if any kernel module is yet to be
loaded when the initramfs is built, or got unloaded by accident the
module list will not change. This make the list more stable over
initramfs builds.

Signed-off-by: Kairui Song <kasong@redhat.com>

diff --git a/dracut-functions.sh b/dracut-functions.sh
index 1431dd1861da9a27815f5c426668f02b3c095aca..ccc489719678600fdf132136e92677523dcb3bed 100755 (executable)
--- a/dracut-functions.sh
+++ b/dracut-functions.sh
@@ -676,17 +676,6 @@ get_ucode_file ()
     fi
 }
 
-# Get currently loaded modules
-# sorted, and delimited by newline
-get_loaded_kernel_modules ()
-{
-    local modules=( )
-    while read _module _size _used _used_by; do
-        modules+=( "$_module" )
-    done <<< "$(lsmod | sed -n '1!p')"
-    printf '%s\n' "${modules[@]}" | sort
-}
-
 # Not every device in /dev/mapper should be examined.
 # If it is an LVM device, touch only devices which have /dev/VG/LV symlink.
 lvm_internal_dev() {

diff --git a/dracut.sh b/dracut.sh
index fd9903b6637f7bea13079ee81826500972ee1032..41fd76f9aa658ddd6a62d108230bb83f11caf5f8 100755 (executable)
--- a/dracut.sh
+++ b/dracut.sh
@@ -1490,7 +1490,7 @@ dinfo "*** Including modules done ***"
 ## final stuff that has to happen
 if [[ $no_kernel != yes ]]; then
     if [[ $hostonly ]]; then
-        echo "$(get_loaded_kernel_modules)" > $initdir/lib/dracut/loaded-kernel-modules.txt
+        cp "$DRACUT_KERNEL_MODALIASES" $initdir/lib/dracut/hostonly-kernel-modules.txt
     fi
 
     if [[ $drivers ]]; then