Package: dracut

"dracut" package binaries on CentOS:

/sbin/dracut /sbin/lsinitrd /sbin/mkinitrd

You may install this package on CentOS with yum install dracut

"dracut" package binaries on Debian:

/usr/bin/dracut-catimages /usr/bin/dracut /usr/bin/lsinitrd

You may install this package on Debian with apt-get install dracut