[erlang-questions] How to best debug init.erl?

Björn-Egil Dahlberg <>
Thu Apr 19 21:11:38 CEST 2012


Do it like this instead:

Hop down to erts/preloaded,
1. PATH=$ERL_TOP/bin:$PATH gmake
2. copy file from src to ebin
3. Hop to erts, remake beam, i.e make (check for preload.o to link)

// Björn-Egil

Den 19 april 2012 21:06 skrev Peer Stritzinger <>:

> On Thu, Apr 19, 2012 at 8:37 PM, Peer Stritzinger <>
> wrote:
> > What do I have to do to rebuild with changes in init.erl ...
> > especially for cross building.
>
> Small update to this part: I found
>
>  $ ./otp_build update_preloaded
>
> Which rebuilds the preloaded files but then I get in trouble when I
> want to rebuild with
>
>  $ ./otp_build boot -a
>
> I get errors like:
>
> ...
> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
> * * *
> * ERROR:   Trying to cross compile an Erlang/OTP-R15B system with a
> different
> *          Erlang/{"load_mod",error_handler,"error_handler.beam"}
> ...
>
> Somehow update_preloaded seems to use the wrong Erlang version (my
> installed one?)
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