For the sbin/loader binary distributed in the initrd.img in this file: ftp://ftp.redhat.com/pub/redhat/linux/7.2/en/os/i386/images/bootnet.img the source can be found within this anaconda SRPM: ftp://ftp.redhat.com/pub/redhat/linux/7.2/en/os/i386/SRPMS/anaconda-7.2-7.src.rpm So, for the sbin/loader binary distributed in the initrd.img contained in: ftp://updates.redhat.com/7.2/en/os/images/i386/bootnet.img where is the source distributed?