Hi all I don't have the full Centos 4 CD distro, only the minimal server one (single CD). I use whitebox 4 for desktop installs and then change the necessary files whitebox-release, diskdumputils, yum etc. & change it to centos...never had a problem. This time however, I don't know why, but I chose the "Everything" option in the package selection dialog during install. Post installation, I changed the server to centos, by changing the appropriate files & installed postgreSQL 8.1 from local HDD using yum localinstall option...it installed perfectly. Then I gave a yum -y update command & went to sleep...& found the errors below in the morning. I agree that it is not a centos problem...but whitebox too is a RHEL derived OS and quite strict about remaining with the upstream. One doubt I have is that maybe I'm mistaken & the fresh install was not a fresh install after all (done in the middle of night with drooping eyes)...the earlier install on this system was centos 4.2 with centos extras & dag repo enabled and I may have chosen not to format the system & keep data or maybe the upgrade method. Can someone look at the files below & tell me these are from out of centos 4.2 repo and confirm the above doubt (another prob is that the rpm database should have been recreated on fresh install & there should be an upgrade log file in my root from anaconda...not there) Comments? Also, how do I downgrade packages using yum to get out of this dependency hell? Can I do it with one yum command or do I have to uninstall packages creating problems one by one? Sanjay. Error: Missing Dependency: gcc = 3.4.3-9.EL4 is needed by package gcc-g77 Error: Missing Dependency: php = 4.3.9-3.2 is needed by package php-domxml Error: Missing Dependency: gcc4 = 4.0.0-0.14.EL4 is needed by package gcc4-gfortran Error: Missing Dependency: php = 4.3.9-3.2 is needed by package php-xmlrpc Error: Missing Dependency: cyrus-imapd = 2.2.10-1.RHEL4.1 is needed by package cyrus-imapd-devel Error: Missing Dependency: rpm = 4.3.3-7_nonptl.WB2 is needed by package rpm-devel Error: Missing Dependency: gcc = 3.4.3-9.EL4 is needed by package gcc-gnat Error: Missing Dependency: gcc = 3.4.3-9.EL4 is needed by package gcc-objc Error: Missing Dependency: libc-client = 2002e-8 is needed by package libc-client-devel Error: Missing Dependency: php = 4.3.9-3.2 is needed by package php-ncurses Error: Missing Dependency: kdegraphics = 7:3.3.1-3.3 is needed by package kdegraphics-devel Error: Missing Dependency: gtkhtml3 = 3.3.2-3 is needed by package gtkhtml3-devel Error: Missing Dependency: php = 4.3.9-3.2 is needed by package php-pear Error: Missing Dependency: ruby-libs = 1.8.1-7.EL4.0 is needed by package ruby-devel Error: Missing Dependency: iiimf-libs = 1:12.1-10.EL is needed by package iiimf-libs-devel Error: Missing Dependency: glibc-devel = 2.3.4-2 is needed by package nptl-devel Error: Missing Dependency: gcc4 = 4.0.0-0.14.EL4 is needed by package gcc4-c++ Error: Missing Dependency: freeradius = 1.0.1-2.RHEL4 is needed by package freeradius-postgresql Error: Missing Dependency: php = 4.3.9-3.2 is needed by package php-gd Error: python-devel conflicts with python < 2.3.4-14.2 Error: Missing Dependency: php = 4.3.9-3.2 is needed by package php-odbc Error: Missing Dependency: openoffice.org = 1.1.2-24.6.0.EL4 is needed by package openoffice.org-i18n Error: Missing Dependency: openldap-servers = 2.2.13-2 is needed by package openldap-servers-sql Error: Missing Dependency: lockdev = 1.0.1-3 is needed by package lockdev-devel Error: Missing Dependency: rpm = 4.3.3-7_nonptl.WB2 is needed by package rpm-build Error: Missing Dependency: java-1.4.2-gcj-compat = 0:1.4.2.0-26jpp is needed by package java-1.4.2-gcj-compat-devel Error: Missing Dependency: php = 4.3.9-3.2 is needed by package php-devel Error: Missing Dependency: gcc4 = 4.0.0-0.14.EL4 is needed by package libmudflap-devel Error: Missing Dependency: gcc = 3.4.3-9.EL4 is needed by package gcc-c++ Error: Missing Dependency: php = 4.3.9-3.2 is needed by package php-mbstring Error: Missing Dependency: oprofile = 0.8.1-11 is needed by package oprofile-devel Error: Missing Dependency: php = 4.3.9-3.2 is needed by package php-pgsql