Installing dependencies only

[Paul Howarth]

On Sun, 2006-03-26 at 13:23 +0100, Paul Smith wrote:
> On 3/26/06, Anne Wilson <cannewilson at tiscali.co.uk> wrote:
> > > > > Is it possible with yum and with only one instruction to install not a
> > > > > certain package but all its dependencies?
> > > >
> > > > That is the normal behaviour.  You ask for one package, and if you
> > > > already have all the dependencies you will get one package.  If you
> > > > haven't got them all you may find that it says it needs to install 3 or
> > > > more.  It always asks permission before installing.
> > >
> > > Thanks, Anne, but it is not what I wanted to mean: imagine that the
> > > package x.rpm has, as dependencies, the packages y.rpm and z.rpm; in
> > > this case, I would like to install only the dependencies, i.e., only
> > > y.rpm and z.rpm, and NOT x.rpm.
> > >
> > All I can suggest, then, is to ask yum for the original package, then when it
> > lists the necessaries, reject the install and give a new yum command listing
> > the required dependency packages.
> >
> > It seems a rather strange requirement, so telling the reason for the
> > requirement may spark of some better solution from a more knowledgeable
> > poster.
> 
> Taking my example above, x.rpm is not supplied by any repository;
> then, a simple method to install it is
> 
> yum localinstall x.rpm
> 
> With this procedure, I will know the dependencies, which I will install before
> 
> rpm -ihv x.rpm
> 
> as "yum localinstall" is not able to install x.rpm due to the fact
> that x.rpm is not signed.

Two ways of installing x.rpm plus its dependencies:

First way, doesn't involve changing any config files:
# (echo config gpgcheck 0; echo localinstall x.rpm; echo run) | yum -y
shell

(that's all one line)


Second way, involves file edits first:
Edit /etc/yum.conf and change gpgcheck=1 to gpgcheck=0
Edit all of your /etc/yum.repos.d/*.repo files and add gpgcheck=1 to any
repo entry that doesn't have a gpgcheck entry.

Then you should just be able to do:
# yum localinstall x.rpm

Paul.