Problem

The installer have issue related to the use of /tmp

Error messages:

Unable to initialize installer.
Is /tmp writable ?
Is SELinux enabled? You may need to disable it temporarily.

/tmp is set with noexec

/tmp is not accessible by the user

Resolution

Indeed, with Installbuilder some files are created in /tmp directory. However, here is a workaround:

* You can create a directory in your HOME (ex: mkdir ~/tmp)

InstallBuilder Documentation:

The system Temp directory is stored in the built-in variable ${system_temp_directory}. In Unix, if the /tmp directory is not writable, it will attempt to use /var/tmp, /usr/tmp and ~/tmp instead.