sys-kernel/coreos-kernel: Add Fusion storage drivers back to initrd

The Fusion MPT SCSI storage drivers were missing from the new minimal
initrd because they are not together with the other storage driver
modules but live in their own "message/fusion/" folder.
Add the "message/fusion/" folder to the initrd modules so that we can
load the disk. Dependencies will be resolved by dracut-install as
needed.

Fixes flatcar/Flatcar#1924

Signed-off-by: Kai Lueke <kailuke@microsoft.com>

Author: pothos

changelog/bugfixes/2025-11-07-initrd-fusion-drivers.md

@@ -0,0 +1 @@
+- Alpha only: Added Fusion SCSI disk drivers back to the initrd after they got lost in the rework ([Flatcar#1924](https://github.com/flatcar/Flatcar/issues/1924))

sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-6.12.54.ebuild

@@ -116,7 +116,7 @@ src_compile() {
 	cp "${S}"/build/bootengine/lib/modprobe.d/* lib/modprobe.d/ || die
 	# Only include modules related to mounting /usr and for interacting with the emergency console
 	pushd "${S}/build/bootengine/usr/lib/modules/${KV_FULL}" || die
-	find kernel/drivers/{ata,block,hid,hv,input/serio,mmc,nvme,pci,scsi,usb} kernel/fs/{btrfs,overlayfs,squashfs} kernel/security/keys -name "*.ko.*" -printf "%f\0" | DRACUT_NO_XATTR=1 xargs --null "${BROOT}"/usr/lib/dracut/dracut-install --destrootdir "${S}"/build/minimal --kerneldir . --sysrootdir "${S}"/build/bootengine/ --firmwaredirs "${S}"/build/bootengine/usr/lib/firmware --module dm-verity dm-mod virtio_console || die
+	find kernel/drivers/{ata,block,hid,hv,input/serio,message/fusion,mmc,nvme,pci,scsi,usb} kernel/fs/{btrfs,overlayfs,squashfs} kernel/security/keys -name "*.ko.*" -printf "%f\0" | DRACUT_NO_XATTR=1 xargs --null "${BROOT}"/usr/lib/dracut/dracut-install --destrootdir "${S}"/build/minimal --kerneldir . --sysrootdir "${S}"/build/bootengine/ --firmwaredirs "${S}"/build/bootengine/usr/lib/firmware --module dm-verity dm-mod virtio_console || die
 	popd || die
 	# Double compression only makes the image bigger and slower
 	find . -name "*.ko.xz" -exec unxz {} + || die