[erlang-questions] use only parts of a release

Ahmed Omar spawn.think@REDACTED
Fri Apr 22 13:33:28 CEST 2011

If you want to control the applications you wanna include, you should do
that using the .rel file. (you should find it under releases/version dir)

On Fri, Apr 22, 2011 at 1:25 PM, Pablo Platt <pablo.platt@REDACTED> wrote:

> I've removed some of the apps because I didn't understand why the release
> includes apps such as mnesia and wx although I don't use them.
> To prevent issues I'm including all the lib folder now.
> init:get_argument(root) when running the generated release gives me
> {ok,[["/home/user/myserver/rel/myserver"]]}
> after installing the deb package on the second machine I'm getting:
> {ok,[["/usr/local/lib/erlang"]]}
> ------------------------------
> *From:* Per Melin <per.melin@REDACTED>
> *To:* Pablo Platt <pablo.platt@REDACTED>
> *Cc:* erlang-questions <erlang-questions@REDACTED>
> *Sent:* Friday, April 22, 2011 1:32 PM
> *Subject:* Re: [erlang-questions] use only parts of a release
> On Thu, Apr 21, 2011 at 9:42 PM, Pablo Platt <pablo.platt@REDACTED>
> wrote:
> > Is it possible to copy only parts of a release and use it on another
> machine
> > with an erlang installation
> > but still be able to use hot code upgrades?
> Included in the release is a .boot-file. It loads all the modules in
> the release and starts your applications. If you don't copy all the
> modules I would assume the boot script will crash. Even if that
> doesn't happen I can think of serveral problems you will have along
> the way, like how to make a release update script (relup) for your
> partial release.
> > I'm able to install and run myapp but release_handler:which_releases()
> show
> > the info of the default erlang runtime instead of my release.
> release_handler reads the file releases/RELEASES.
> See http://www.erlang.org/doc/man/release_handler.html#create_RELEASES-4
> But I don't think you should see the default Erlang release either
> way. Does init:get_argument(root) give your release directory or your
> standard Erlang installation?
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Best Regards,
- Ahmed Omar
Follow me on twitter
@spawn_think <http://twitter.com/#!/spawn_think>
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