Generic YUM usage – lesser known options

Find a package which delivers a certain file:
# yum whatprovides "*/gnu/stubs-32.h" 

glibc-devel-2.12-1.80.el6.i686 : Object files for development using standard C: libraries.
Repo        : ol6_u3_base
Matched from:
Filename    : /usr/include/gnu/stubs-32.h

List a package and download the RPM 
# yum list dhcp
Loaded plugins: refresh-packagekit, security
Available Packages
dhcp.x86_64                  12:4.1.1-34.P1.0.1.el6                   ol6_latest

# yumdownloader dhcp.x86_64  --destdir  /KITS/YUM
Loaded plugins: refresh-packagekit
dhcp-4.1.1-34.P1.0.1.el6.x86_64.rpm                      | 815 kB     00:

List older versions of a package
# yum --showduplicate list  bind-utils
Loaded plugins: refresh-packagekit, security
Installed Packages
bind-utils.x86_64 32:9.8.2-0.10.rc1.el6         @anaconda-OracleLinuxServer-201206261930.x86_64/6.3
Available Packages
bind-utils.x86_64 32:9.7.0-5.P2.el6             ol6_latest                      
bind-utils.x86_64 32:9.7.0-5.P2.el6_0.1         ol6_latest                      
bind-utils.x86_64 32:9.7.3-2.el6                ol6_latest                      
bind-utils.x86_64 32:9.7.3-2.el6_1.P1.1         ol6_latest
....

Run RPM to upgrade a package with multiple packages 
# rpm -Uvh bind-9.8.2-0.17.rc1.0.2.el6_4.4.x86_64.rpm  bind-libs-9.8.2-0.17.rc1.0.2.el6_4.4.x86_64.rpm \ 
     bind-utils-9.8.2-0.17.rc1.0.2.el6_4.4.x86_64.rpm

 

Standard YUM commands:

1) Install a package
# yum install  glibc-headers-2.12-1.107.el6.x86_64

2) Check, drop and install a newer version of a package
Check the current status of Oracle RDBMS SERVER preinstall package 
# rpm -qa | grep -i preinstall
oracle-rdbms-server-11gR2-preinstall-1.0-6.el6.x86_64

Deinstall the 11.2 package
# yum remove oracle-rdbms-server-11gR2-preinstall.x86_64
Loaded plugins: refresh-packagekit, security

Check whether 12c preinstall package is available from our YUM repository 
#  yum list | grep preinstall
oracle-rdbms-server-12cR1-preinstall.x86_64

Install it 
# yum install oracle-rdbms-server-12cR1-preinstall.x86_64

 

Error:  Plugin “refresh-packagekit”  can’t be imported  using YUM

# yum list
Plugin "refresh-packagekit" can't be imported
Loaded plugins: security
Traceback (most recent call last):
  File "/usr/bin/yum", line 29, in <module>
    yummain.user_main(sys.argv[1:], exit_code=True)
  File "/usr/share/yum-cli/yummain.py", line 285, in user_main
    errcode = main(args)
  File "/usr/share/yum-cli/yummain.py", line 136, in main
    result, resultmsgs = base.doCommands()
  File "/usr/share/yum-cli/cli.py", line 434, in doCommands
    self._getTs(needTsRemove)
  File "/usr/lib/python2.6/site-packages/yum/depsolve.py", line 99, in _getTs
    self._getTsInfo(remove_only)
  File "/usr/lib/python2.6/site-packages/yum/depsolve.py", line 110, in _getTsInfo

Solution: Remove $ORACLE_HOME/lib from LD_LIBRARY_PATH

[root@hrac1 Desktop]#   env | grep LD
LD_LIBRARY_PATH=/u01/app/11.2.0/grid/lib:/lib:/usr/lib
You have new mail in /var/spool/mail/root
[root@hrac1 Desktop]# export LD_LIBRARY_PATH=/usr/lib 
[root@hrac1 Desktop]# yum list 
Loaded plugins: refresh-packagekit, security
ol6_u3_base                                              | 1.4 kB     00:00