sudo rpm -i hadoop-1.2.1-1.i386.rpm
rpm: RPM should not be used directly install RPM packages, use Alien instead!
rpm: However assuming you know what you are doing...
error: Failed dependencies:
	sh-utils is needed by hadoop-1.2.1-1.i386
	textutils is needed by hadoop-1.2.1-1.i386
	/usr/sbin/useradd is needed by hadoop-1.2.1-1.i386
	/usr/sbin/usermod is needed by hadoop-1.2.1-1.i386
	/sbin/chkconfig is needed by hadoop-1.2.1-1.i386
	/sbin/service is needed by hadoop-1.2.1-1.i386
	/bin/sh is needed by hadoop-1.2.1-1.i386