In
my
previous
post I had five lines added to /etc/yum.conf.
[local] name="media"
baseurl=file:///media/Enterprise%20Linux%20dvd%2020090127/Server enabled=1
gpgkey=file:///media/Enterprise%20Linux%20dvd%2020090127/RPM-GPG-KEY-oracle
The ones except gpgkey are self-explanatory. The parameter gpgkey is
used to point to a file that contains the public key for the packages
you install so that yum can verify the package‘s authenticity if needed.
The file I use is the key file that contains the public key to verify the
oracle-validated rpm.
oracle-validated rpm is used to install the
necessary packages for Oracle installations, it also updates the kernel
parameters and creates a default oracle user. Using it is an easy way to
prepare your server for Oracle installations, the other option is to check
the installation prerequisites from the documentation and install the
packages, update the kernel parameters and create the user
yourself.
MOS Note 579101.1 explains how to install the
oracle-validated rpm.
I tried to install this rpm without checking
the note and I did not use the gpgkey parameter in /etc/yum.conf
initially. This is what you get if you do not set it.
[root@oeltest tmp]# yum install
oracle-validated-1.0.0-18.el5.i386.rpm
Install 19
Package(s) Update
0 Package(s)
Remove 0 Package(s)
Total download size: 37 M
Is this ok [y/N]: y
Downloading Packages:
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Total
2.6 GB/s | 37 MB
00:00 warning:
rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID
1e5e0159 Public key
for oracle-validated-1.0.0-18.el5.i386.rpm is not
installed The error indicates that yum cannot verify
this rpm so it does not install it. When you update /etc/yum.conf with
the gpgkey parameter the error goes away.
-----------------------------------------------------------------------------------------------------
http://docs.oracle.com/cd/E37670_01/E39381/html/ol_import_gpg.html
2.4 Downloading and Importing
a GPG Key
Under some circumstances, such as when installing additional software
in a virtual machine domain, you might need to download and import the GPG
key to use with yum. To
obtain a GPG key from the public yum repository and then import it, you
can use the wget and rpm commands as shown in the
following example:
# wget http://public-yum.oracle.com/RPM-GPG-KEY-oracle-el5
# rpm --import ./RPM-GPG-KEY-oracle-el5
