Refreshing or Upgrading an Installation

How to:

Refreshing reinstalls the files in the installation directory, without changing any configuration information in the configuration directory.

Procedure: How to Refresh or Upgrade an Installation

If it becomes necessary to refresh, or if you want to upgrade to a new release:

Sign in using the iadmin user ID.

Logging on with the iadmin ID is recommended (rather than with the su command).
Set the default protection mask to, at a minimum, read/execute (if it is not already set to that). For example:
```
umask 022
```
Ensure that you have write privileges to the directory from which you are running the command. To test this, type:
```
touch xxxx
```
Run the installation procedure, isetup, specifying its full path. You can run the installation procedure from any location. Do not switch the current directory to the location of isetup. For example:
```
/u/iadmin/download/isetup
```
At the main menu, type option 3, Refresh Installation (Reinstall, Keep Configuration), and respond to the prompts.

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