I was able to successfully migrate from 4.4 to 5.0 in place. I created a guide for our webhost and thought to share it with the community in general. I registered as JasonPotkanski on the wiki. As a side note, if spam on the CentOS wiki is terrible, perhaps use of Bad Behavior may be used. -Jason Potkanski Citizendium ---- All right, Here is an unholy guide for Migrating Centos 4.4 to 5.0 in place. Since it doesn't exist on Centos anywhere or anyone has been able to report success doing it, I must be a pioneer and therefore this is a Steadfast exclusive. Never do this. You'll likely end up mucking up your system bad/and or requiring a $25 reinstall fee. And loose all your data if you were stupid not to backup. The only way you want to do this is if you are one of those sysadmin jocks like myself who love the idea of climbing Mt. Everest. Naked. This guide is also Precheck: 1. Backup yer stuff. 2. Make sure your backup is intact. 3. Backup your stuff again. 4. Move all your production services to another server. (You can't do this? Then stop here!) Getting started: 1. Import the new rpm key rpm --import http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5 2. Upgrade the Centos-release: rpm -U http://mirror.anl.gov/pub/centos/5.0/os/i386/CentOS/centos-release-5-0.0.el5.centos.2.i386.rpm http://mirror.anl.gov/pub/centos/5.0/os/i386/CentOS/centos-release-notes-5.0.0-2.i386.rpm 3. (Steadfast specific) in /etc/yum.repos.d you have two choices. Centos-release will add Centos-base.repo.rpmnew . You can move the Steadfast CentOS-Base.repo to something else and move the rpmnew to CentOS-Base.repo. Or, to save Steadfast bandwidth, edit the CentOS-Base.repo and replace $releasever with 5 (I.e. baseurl=http://mirror.steadfast.net/centos/5/addons/$basearch/ and so forth) 4. Remove unnecessary rpms that may conflict with yum kernel upgrade. Do a test run of yum upgrade kernel (Do you like pain?). Somethings that would conflict with a kernel upgrade can be safely removed. Examples from my experience: yum remove pcmcia-cs yum remove xorg-x11-xfs yum remove kudzu (Probably a bad idea) yum remove pm-utils yum remove gcc yum remove lksctp-tools ImageMagick yum remove oprofile yum remove *-devel yum remove ppp yum remove isdn* 5a. Setup for the next bit. This is the fun part. We are going to resolve rpm dependency hell manually. I used two terminal windows and a browser window. The first terminal window we are going to build a massive rpm -U The second terminal window was used for yum provides and yum remove as necessary. The browser window was pointed at http://mirror.centos.org/centos/5/os/i386/CentOS/ Copy shortcut and ctrl-f for find are your friend here. 5. Start with rpm -U http://mirror.centos.org/centos/5/os/i386/CentOS/kernel-2.6.18-8.el5.i686.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/initscripts-8.45.14.EL-1.el5.centos.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/autofs-5.0.1-0.rc2.42.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/hal-0.5.8.1-19.el5.i386.rpm These are probably your biggest conflict generators when you do yum upgrade. From there we work to resolve dependencies against libraries and packages that are missing. After a long hard cut and paste slog: rpm -U http://mirror.centos.org/centos/5/os/i386/CentOS/kernel-2.6.18-8.el5.i686.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/initscripts-8.45.14.EL-1.el5.centos.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/autofs-5.0.1-0.rc2.42.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/hal-0.5.8.1-19.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/udev-095-14.5.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/mkinitrd-5.1.19.6-1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/nfs-utils-1.0.9-16.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/procps-3.2.7-8.1.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/e2fsprogs-1.39-8.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/e2fsprogs-libs-1.39-8.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/selinux-policy-targeted-2.4.6-30.el5.noarch.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/kudzu-1.2.57.1.13-1.el5.centos.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/glibc-2.5-12.i686.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/glib2-2.12.3-2.fc6.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/sysklogd-1.4.1-39.2.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/ntsysv-1.3.30.1-1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/dbus-1.0.0-6.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/dbus-glib-0.70-5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/openldap-2.3.27-5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/glibc-common-2.5-12.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/SysVinit-2.86-14.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/cryptsetup-luks-1.0.3-2.2.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/dmidecode-2.7-1.28.2.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libusb-0.1.12-5.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libvolume_id-095-14.5.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/pm-utils-0.19-3.el5.centos.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/nash-5.1.19.6-1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libevent-1.1a-3.2.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/selinux-policy-2.4.6-30.el5.noarch.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libgssapi-0.10-2.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/krb5-libs-1.5-17.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/chkconfig-1.3.30.1-1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/nfs-utils-lib-1.0.8-7.2.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/policycoreutils-1.33.12-3.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/hwdata-0.194-1.noarch.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/python-2.4.3-19.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/newt-0.52.2-9.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/openssl-0.9.8b-8.3.el5.i686.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/openssh-4.3p2-16.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/openssh-server-4.3p2-16.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libselinux-1.33.4-2.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/pam-0.99.6.2-3.14.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/pciutils-2.2.3-4.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libselinux-python-1.33.4-2.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libsemanage-1.9.1-3.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libsepol-1.15.2-1.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/audit-libs-1.3.1-1.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/audit-libs-python-1.3.1-1.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/module-init-tools-3.3-0.pre3.1.16.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/db4-4.3.29-9.fc6.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/readline-5.1-1.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/slang-2.0.6-4.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/mcstrans-0.1.10-1.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/cracklib-2.8.9-3.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/cracklib-dicts-2.8.9-3.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/kernel-headers-2.6.18-8.el5.i386.rpm Probably at this point you could --force things along as you have resolved all the dependecies against the new stuff ignoring the (installed). We should keep going to resolve all the installed dependencies. Another 3 hours: rpm -U http://mirror.centos.org/centos/5/os/i386/CentOS/kernel-2.6.18-8.el5.i686.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/initscripts-8.45.14.EL-1.el5.centos.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/autofs-5.0.1-0.rc2.42.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/hal-0.5.8.1-19.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/udev-095-14.5.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/mkinitrd-5.1.19.6-1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/nfs-utils-1.0.9-16.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/procps-3.2.7-8.1.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/e2fsprogs-1.39-8.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/e2fsprogs-libs-1.39-8.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/selinux-policy-targeted-2.4.6-30.el5.noarch.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/kudzu-1.2.57.1.13-1.el5.centos.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/glibc-2.5-12.i686.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/glib2-2.12.3-2.fc6.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/sysklogd-1.4.1-39.2.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/ntsysv-1.3.30.1-1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/dbus-1.0.0-6.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/dbus-glib-0.70-5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/openldap-2.3.27-5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/glibc-common-2.5-12.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/SysVinit-2.86-14.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/cryptsetup-luks-1.0.3-2.2.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/dmidecode-2.7-1.28.2.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libusb-0.1.12-5.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libvolume_id-095-14.5.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/pm-utils-0.19-3.el5.centos.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/nash-5.1.19.6-1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libevent-1.1a-3.2.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/selinux-policy-2.4.6-30.el5.noarch.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libgssapi-0.10-2.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/krb5-libs-1.5-17.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/chkconfig-1.3.30.1-1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/nfs-utils-lib-1.0.8-7.2.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/policycoreutils-1.33.12-3.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/hwdata-0.194-1.noarch.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/python-2.4.3-19.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/newt-0.52.2-9.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/openssl-0.9.8b-8.3.el5.i686.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/openssh-4.3p2-16.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/openssh-server-4.3p2-16.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libselinux-1.33.4-2.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/pam-0.99.6.2-3.14.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/pciutils-2.2.3-4.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libselinux-python-1.33.4-2.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libsemanage-1.9.1-3.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libsepol-1.15.2-1.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/audit-libs-1.3.1-1.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/audit-libs-python-1.3.1-1.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/module-init-tools-3.3-0.pre3.1.16.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/db4-4.3.29-9.fc6.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/readline-5.1-1.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/slang-2.0.6-4.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/mcstrans-0.1.10-1.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/cracklib-2.8.9-3.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/cracklib-dicts-2.8.9-3.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/kernel-headers-2.6.18-8.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/NetworkManager-0.6.4-6.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/glibc-headers-2.5-12.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/cyrus-sasl-2.1.22-4.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libuser-0.54.7-2.el5.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/sendmail-8.13.8-2.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/nss_ldap-253-3.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/python-ldap-2.2.0-2.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/squid-2.6.STABLE6-3.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/apr-util-1.2.7-6.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/httpd-2.2.3-6.el5.centos.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/cyrus-sasl-lib-2.1.22-4.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/dhcdbd-2.2-1.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/wpa_supplicant-0.4.8-10.1.fc6.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libnl-1.0-0.10.pre5.4.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/apr-1.2.7-11.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/gnupg-1.4.5-12.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/krb5-workstation-1.5-17.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/python-elementtree-1.2.6-5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libxml2-2.6.26-2.1.2.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libxml2-python-2.6.26-2.1.2.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/authconfig-5.3.12-2.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/netconfig-0.8.24-1.2.2.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/setuptool-1.19.2-1.el5.centos.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/cyrus-sasl-md5-2.1.22-4.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/cups-libs-1.2.4-11.5.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/net-snmp-5.3.1-14.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/net-snmp-libs-5.3.1-14.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/OpenIPMI-2.0.6-5.el5.3.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/lftp-3.5.1-2.fc6.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/pyOpenSSL-0.6-1.p24.7.2.2.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/stunnel-4.15-2.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/wget-1.10.2-7.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/xmlsec1-1.2.9-8.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libwvstreams-4.2.2-2.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/pam_ccreds-3-5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/dhcpv6_client-0.10-33.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/ipsec-tools-0.6.5-6.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/bind-libs-9.3.3-7.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/openssh-clients-4.3p2-16.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/bind-utils-9.3.3-7.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/curl-7.15.5-2.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/neon-0.25.5-5.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/ntp-4.2.2p1-5.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/perl-Crypt-SSLeay-0.51-11.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/php-5.1.6-5.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/php-common-5.1.6-5.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/php-cli-5.1.6-5.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/php-pgsql-5.1.6-5.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/gnutls-1.4.1-2.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libpng-1.2.10-7.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/lm_sensors-2.10.0-3.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/perl-String-CRC32-1.4-2.fc6.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/postgresql-libs-8.1.4-1.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/xmlsec1-openssl-1.2.9-8.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/audit-1.3.1-1.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/db4-utils-4.3.29-9.fc6.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/lvm2-2.02.16-3.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/perl-5.8.8-10.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/bc-1.06-21.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/ftp-0.17-33.fc6.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/parted-1.8.1-4.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/sqlite-3.3.6-2.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/guile-1.8.0-8.20060831cvs.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/php-gd-5.1.6-5.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/php-pdo-5.1.6-5.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libgcrypt-1.2.3-1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/libsysfs-2.0.0-6.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/device-mapper-1.02.13-1.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/cyrus-sasl-plain-2.1.22-4.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/swig-1.3.29-2.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/apmd-3.2.2-5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/util-linux-2.13-0.44.el5.i386.rpm http://apt.sw.be/packages/monit/monit-4.9-1.el5.rf.i386.rpm (Monit is from Dag repository) Notes: RPM warned that the hal upgrade script broke, however, it does not seem to affect the operation of the machine. 6. RPM and yum will now be broken. Took me a little while to resolve the problem, but this is what is needed to upgrade both: rpm -U http://mirror.centos.org/centos/5/os/i386/CentOS/yum-3.0.5-1.el5.centos.2.noarch.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/rpm-4.4.2-37.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/rpm-libs-4.4.2-37.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/rpm-python-4.4.2-37.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/rpm-build-4.4.2-37.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/beecrypt-4.1.2-10.1.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/beecrypt-python-4.1.2-10.1.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/popt-1.10.2-37.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/elfutils-libelf-0.125-3.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/elfutils-0.125-3.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/elfutils-libs-0.125-3.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/python-sqlite-1.1.7-1.2.1.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/yum-cron-0.1-1.el5.centos.noarch.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/yum-metadata-parser-1.0-8.fc6.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/yum-updatesd-3.0.5-1.el5.centos.2.noarch.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/dbus-python-0.70-7.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/pygobject2-2.12.1-5.el5.i386.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/python-urlgrabber-3.1.0-2.noarch.rpm http://mirror.centos.org/centos/5/os/i386/CentOS/m2crypto-0.16-6.el5.1.i386.rpm 6b. Kill the RPM database. Since we upgraded rpm and db4, rpm is going to complain about a database error. Resolve by: cd /var/lib/rpm Either rm __db.* or mv __db.* ~, your choice. rpm --rebuilddb 7. yum upgrade. This should now work. There may be a few orphaned packages that will break yum upgrade. Remove them. Take note of various conf files that get renamed (warning: /etc/httpd/conf.d/mrtg.conf saved as /etc/httpd/conf.d/mrtg.conf.rpmsave) You will likely track them down later to see whats changed to restart various services. 8. Reboot. Here is your biggest test. Will the machine come back? Now is a good time for a sin break...cigarette, alcohol, newgrounds.com or all of the above. Mine did, if yours does...this guide is vindicated. If not...prepare for an OS reinstall fee or a long drive to the data center and alka seltzer. 9. Victory! uname -a Linux locke.citizendium.org 2.6.18-8.1.1.el5 #1 SMP Mon Apr 9 09:46:54 EDT 2007 i686 athlon i386 GNU/Linux 10. Expect some services to have failed on startup. In my instance I had to alter and restore httpd.conf and squid.conf to get the services back up. You should also restore things removed that are likely needed on the system: yum install gcc yum install ImageMagick etc