#!/bin/bash
if [[ -z $drivers ]]; then
    block_module_test() {
	local blockfuncs='ata_scsi_ioctl|scsi_add_host|blk_cleanup_queue|register_mtd_blktrans|scsi_esp_register|register_virtio_device'

	egrep -q "$blockfuncs" "$1"
    }
    hostonly='' instmods sr_mod sd_mod scsi_dh scsi_dh_rdac scsi_dh_emc scsi_dh_alua
    hostonly='' instmods pcmcia firewire-ohci
    hostonly='' instmods usb_storage sdhci sdhci-pci

    # install keyboard support
    hostonly='' instmods atkbd i8042 usbhid hid-apple ehci-hcd ohci-hcd uhci-hcd xhci-hcd hyperv_keyboard hid-hyperv

    instmods "=drivers/pcmcia" =ide "=drivers/usb/storage"
    instmods $(filter_kernel_modules block_module_test) 
    # if not on hostonly mode, install all known filesystems if the required list is not set via the filesystems variable
    if ! [[ $hostonly ]]; then
	if [[ -z $filesystems ]]; then
	    n_omit_drivers=".*/fs/ocfs/.*|$omit_drivers"
	    n_omit_drivers=${n_omit_drivers%%|}
	    omit_drivers="$n_omit_drivers" instmods '=fs'
	    unset n_omit_drivers
	    # hardcoded list of exceptions
	    # to save a lot of space
	    rm -fr ${initdir}/lib/modules/*/kernel/fs/ocfs2
	else
	    instmods $filesystems
	fi
    else
	hostonly='' instmods $(get_fs_type "/dev/block/$(find_root_block_device)")
    fi
else
  hostonly='' instmods $drivers $filesystems
fi

[[ $add_drivers ]] && hostonly='' instmods $add_drivers

# force install of scsi_wait_scan
hostonly='' instmods scsi_wait_scan