سلام در حين نصب دايركت ادمين اين ارور رو برميگردونه

کد:

Cannot find /etc/sysconfig/rhn/up2date... up2date may break things.
*** cannot find /usr/bin/patch.  Please make sure that patch is installed (yum install patch) ***
Installation didn't pass, halting install.
Once requirements are met, run the following to continue the install:
  cd /usr/local/directadmin/scripts
  ./install.sh

Common pre-install commands:
 http://help.directadmin.com/item.php?id=354
من روي لينك هلپش هم رفتم و كاري كه گفته رو انجام دادم ولي بازم اينو برميگردونه؟