I'm a noob with linux and need to run CentOS because Redhat Enterprise cost bucks. I'm need to verify if certain packages are installed so I can install and test a program. This is what I've done so far:

 

I used the rpm -q command for these programs and verified that these packages were installed:

 

httpd

mod_ssl

nmap

openssh

openssl

 

I ran the same command for postgresql but it shows the package is not installed even though when I installed CentOS I selected it to be installed. I found some help online that suggested I use the 'yum search postgresql' command; I tried it and a bunch of entries showed 'base' 'update' and installed. It is a large list so I won't include it in this post unless asked for.

 

Can I assume that it is installed? Is there another way I can check?

 

Any help is appreciated.

You don't say which version you are using, but if you run

 







 

It should give you the option to install it if it isn't already.

 

If it is installed, it should just go:

 

Quote:Parsing package install argumentsNothing to do

 

Quote:I'm a noob with linux and need to run CentOS because Redhat Enterprise cost bucks. I'm need to verify if certain packages are installed so I can install and test a program. This is what I've done so far: 

I used the rpm -q command for these programs and verified that these packages were installed:

 

httpd

mod_ssl

nmap

openssh

openssl

 

I ran the same command for postgresql but it shows the package is not installed even though when I installed CentOS I selected it to be installed. I found some help online that suggested I use the 'yum search postgresql' command; I tried it and a bunch of entries showed 'base' 'update' and installed. It is a large list so I won't include it in this post unless asked for.

 

Can I assume that it is installed? Is there another way I can check?

 

Any help is appreciated.

Yes! You're right.

 

I ran the yum 'install postgresql' command and it installed postgresql-7.4.16-RHEL4.1. I then did the rpm -q postgresql command again and it showed it was there. It wasn't the 8.2.3 version but at least it shows postgresql is installed. I might be able to make do with this version. Still, I haven't found any help installing the postgresql-8.2.3.tar.gz version.

 

Thanks for your help

 

Quote:You don't say which version you are using, but if you run 

Code:

yum install postgresql

<div>


 

It should give you the option to install it if it isn't already.

 

If it is installed, it should just go:

 

<blockquote data-ipsquote="" class="ipsQuote" data-ipsquote-contentapp="forums" data-ipsquote-contenttype="forums" data-ipsquote-contentid="2888" data-ipsquote-contentclass="forums_Topic">Parsing package install argumentsNothing to do

 

Quote:I'm a noob with linux and need to run CentOS because Redhat Enterprise cost bucks. I'm need to verify if certain packages are installed so I can install and test a program. This is what I've done so far: 

I used the rpm -q command for these programs and verified that these packages were installed:

 

httpd

mod_ssl

nmap

openssh

openssl

 

I ran the same command for postgresql but it shows the package is not installed even though when I installed CentOS I selected it to be installed. I found some help online that suggested I use the 'yum search postgresql' command; I tried it and a bunch of entries showed 'base' 'update' and installed. It is a large list so I won't include it in this post unless asked for.

 

Can I assume that it is installed? Is there another way I can check?

 

Any help is appreciated.

</div></blockquote>