Package: efibootmgr

"efibootmgr" package binaries on CentOS:

/usr/sbin/efibootmgr

You may install this package on CentOS with yum install efibootmgr

"efibootmgr" package binaries on Debian:

/bin/efibootmgr

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