Command line configuration for RPM.
On an RPM-based system (Fedora, SUSE, Mandriva, RHEL, etc.), download the key and then use rpm to install it.
Run these commands as root:
1) wget https://dl-ssl.google.com/linux/linux_signing_key.pub
2) rpm --import linux_signing_key.pub
You can verify the key installation by running:
3) rpm -qi gpg-pubkey-7fac5991-4615767f
To manually verify an RPM package, you can run the command:
4) rpm --checksig -v packagename.rpm
Command line configuration for YUM
As root, create a file 'google.repo' in /etc/yum.repos.d/ and add the following lines to it.
name=Google - i386
If your .repo file contains gpgcheck=1, signatures will automatically be verified during installation.
If you are running a 64-bit distribution, you should also add the x86_64 repository, which will provide you with native 64-bit versions of some of google's software:
name=Google - x86_64
You can then use yum as usual, e.g.
yum install picasa
yum install desktop-backgrounds-basic