sys64738

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====== RPM handling ======

===== List package vendors =====

List packages from 3 party vendors (Not Red Hat).

   rpm -qa --qf '%{NAME} %{VENDOR}\n' | grep -v "Red Hat, Inc."
   
===== Query Package Install Order and Dates =====
  
  rpm -qa --last
  
 ===== Show all installed GPG keys =====

  rpm -q gpg-pubkey --qf '%{name}-%{version}-%{release} --> %{summary}\n' 
  
 ===== Extract files from RPM package  =====

  rpm2cpio httpd-2.2.3-31.el5_4.2.x86_64.rpm | cpio -idmv

===== Extract just one file from RPM package  =====

  rpm2cpio logrotate-1.0-1.i386.rpm |cpio -ivd etc/logrotate.conf
  
====== Yum handling ======
  

===== Only download packages  =====

You might want to download packages without installing them.

Make sure yum-downloadonly plugin is installed

  yum install yum-downloadonly
  
Update system but only download packages do not install them

  yum update -y --downloadonly
  
Default download cache is /var/cache/yum/. This cn be overidden with --downloaddir option

===== Transaction Check Error =====

Getting conflict errors between 32bit and 64 bit packages when doing yum update

Transaction Check Error:

file blablabla from install of hal-0.5.8.1-62.el5.i386.rpm conflicts with file from package hal-0.5.8.1-62.el5.x64.rpm


  rpm -Uvh --force /var/cache/yum/rhel-x86_64-server-5/packages/hal-0.5.8.1-62.el5.i386.rpm

Now re-run yum update. Now everything works fine.

sys64738

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