RELUP(5) - Linux man page online | File formats

Release upgrade file.

sasl 3.1.1
relup(5) Files relup(5)


relup - Release upgrade file


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.


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, [{UpFromVsn, Descr, Instructions}, ...], [{DownToVsn, Descr, Instructions}, ...]}. Vsn = string(): Current release version. UpFromVsn = string(): Earlier version of the release to upgrade from. Descr = term(): A user-defined parameter passed from the function systools:make_relup/3,4. It is used in the return value of release_handler:install_release/1,2. Instructions: A list of low-level release upgrade instructions, see appup(5). It consists of the release upgrade instructions from the respective application upgrade files (high-level instructions are translated to low-level instructions), in the same order as in the start script. DownToVsn = string(): Earlier version of the release to downgrade to.


app(5), appup(5), rel(5), release_handler(3erl), systools(3erl)
Ericsson AB sasl 3.1.1 relup(5)
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relup(5) referred by appup(5) | rel(5) | release_handler(3erl) | systools(3erl)
refer to app(5) | appup(5) | rel(5) | release_handler(3erl) | systools(3erl)
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