Package: kexec-tools

"kexec-tools" package binaries on CentOS:

/sbin/kdump /sbin/kexec /sbin/mkdumprd /sbin/vmcore-dmesg /usr/sbin/makedumpfile

You may install this package on CentOS with yum install kexec-tools

"kexec-tools" package binaries on Debian:

/sbin/coldreboot /sbin/kdump /sbin/kexec /sbin/vmcore-dmesg

You may install this package on Debian with apt-get install kexec-tools