Sorry for the late response, for some reason i didn't recieve any email notification or other things.
About TINU basically it needs special privileges in order to perform it's things, to get those garanted it needs to have the terminal that opens and executes the app itself in order to be able to get all the needed privileges. This is done using a .command file that tinu executes using the terminal app. the problem is that in modern macos apps needs permits to do that and that's missing from the current TINU release, and to be honest i haven't figured it out yet. Here is a simple workaround:
For those not as familiar with terminal commands: First, ensure you're not already running TINU. Then:
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About the second error messange about the fact that the install process will fail it's due to the fact that you are basically attempting at using the installer creation feature without the diagnostics mode or with SIP enabled (which disables modifications to volumes marked as macos startup disks, like the usb installers once they are formatted, therefor preventing the copy of all the necessary boot files; The usage of diagnostics mode trough the terminal uses a special permit guaranteed by the terminal app to bypass this limitation). |