On Thu, 2005-12-01 at 22:12 -0700, Greg Knaddison wrote:
> On 12/2/05, Ian Scott <ian.m.scott@xxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> > Is it possible to export a list of installed packages, take that list
> > to a second machine, and then have yum import that list and add and
> > remove packages on the second machine to match the list? Are there any
> > tools, or yum options for doing this?
> >
>
> There is nothing natively in yum that would do this that I know of,
> but a handful of command line redirects and such and you'd be all set:
>
> $ yum list installed| awk '{print $1}'
>
> That gets your list of installed packages. Then you'd want to check
> on the second machine for duplicates (uniq -c and a grep -v '^2' or
> similar). Then yum install the packages remaining.
>
> > I have a set of similar machines, which I plan to install with
> > identical packages. The machines are already setup with FC4, and I
> > have added and removed some packages from the default install on one
> > of the machines. I'd like to replicate that install on the other
> > machines. If there are better ways of solving this problem, please let
> > me know.
>
> If I know you were doing this from the beginning, I would have said to
> use kickstart to do the install on the other machines. Maybe it's
> still a reasonable idea.
>
> >
> > It seems that I can export a list using
> > yum list installed | cut -d ' ' -f 1
> > No doubt I could write a script that could compare that list with the
> > list on the new machine, and yum install or yum remove the appropriate
> > packages. However, reading this list and other pages, it appears that
> > scripting yum is not recommended.
> >
>
> I think that "scripting yum" is not supported in terms of creating a
> screen scraper that grabs bits of yum output and then does stuff if
> you want that screen scraper to work over time. The implication is
> that the output yum creates is not static and that you should expect
> to have to update those "screen scrapers". However, if you are doing
> this once or twice then sure, go for it.
>
another idea - for yum 2.4.X - use the shell commands in a file.
see /etc/yum/yum-daily.yum for info
and man yum-shell
-sv
