relup

relup

File

relup

File summary

Release upgrade file

Description

The release upgrade file describes how a release is upgraded in a running system.

This file is automatically generated by systools:make_relup/3,4, using a release resource file (.rel), application resource files (.app), and application upgrade files (.appup) as input.

File Syntax

In a target system, the release upgrade file is to be located in directory $ROOT/releases/Vsn.

The relup file contains one single Erlang term, which defines the instructions used to upgrade the release. The file has the following syntax:

{Vsn,
  [{UpFromV