xcat-core/xCAT/postscripts/makeinitrd

#!/bin/bash
#Used only by sysclone

# This SI post-install script is needed because the initrd that autoyast/kickstart/ubuntu builds when installing
# sles/rh/ubuntu on the golden node may not have the drivers when that initrd runs on the node that is
# being deployed with this image (specifically, drivers to be able to mount the disk).
# So rebuild the initrd on the to-node after putting the image on the disk, but before rebooting.

#todo: Make this script work on red hat by checking for dracut and using that if it exists.
#		And do whatever is necessary on ubuntu.

if [[ -f /sbin/dracut ]]; then
    # redhat6.x/centos6.x/rhels7.x
    echo "Running dracut to regenerate the initrd with the drivers needed by this node:"
    arch=`uname -m`
    #echo "arch=$arch"
    initrdfile=`find /boot -name "initramfs-*.$arch.img"`
    #echo "initrdfile=$initrdfile"
    kernelversion=`echo $initrdfile |sed -e 's:/boot/initramfs-\(.*\)\.img:\1:g'`
    #echo "kernelversion=$kernelversion"
    mv $initrdfile $initrdfile.org
    echo "dracut $initrdfile $kernelversion"
    dracut $initrdfile $kernelversion
else
    # suse/sles and redhat5.x/centos5.x
    echo "Running mkinitrd to regenerate the initrd with the drivers needed by this node:"
    osvers=`cat /etc/*release|sed -e 's/.*\([0-9]\{1,\}\.[0-9]\{1,\}\).*/\1/'`
    if [[ $osvers == 5\.* ]];then
        initrdfile=`find /boot -name "initrd-*.img"`
        #echo "initrdfile=$initrdfile"
        kernelversion=`echo $initrdfile |sed -e 's:/boot/initrd-\(.*\)\.img:\1:g'`
        #echo "kernelversion=$kernelversion"
        mv $initrdfile $initrdfile.org
        echo "mkinitrd $initrdfile $kernelversion"
        mkinitrd $initrdfile $kernelversion
    else
        mkinitrd
    fi
fi