Hi all, I wan to change from sendmail to qmail, but I have encountered some problem during the installation. My server configuration: Redhat 5.2 RPM Package: Summersoft RPM : qmail-1_03-6_src.rpm Problem, When I type : rpm --rebuild qmail-1_03-6_src.rpm It can't complete the whole process, it rebuild to some extent and then it only shows: + STATUS=0 + [ 0 -ne 0 ] + chown -R root . + chgrp -R root . + chmod -R a+rX,g-w,o-w . + echo Patch #0: Patch #0: + patch -p1 -s /var/tmp/rpm-tmp.59197: patch: command not found Bad exit status from /var/tmp/rpm-tmp.59197 (%prep) Does anyone what's going wrong and how to solve this problem? I really need some help. Thanks. Regards, Harris