DSL Tips and Tricks :: More advanced users converting from other OS

For diagnosic purposes, maybe the entire bootlocal.sh could be another file and the output to a file.

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...try >>diagdata.txt

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I don't understand why you redirect every command to the same file. This can be much more easily/cleanly accomplished by putting the list of commands into a separate file (without the redirects) and putting this one command in bootlocal:
/path/to/my/script.sh >/diagdata.txt

I have documented some other thiings that may be of use.
If anything would be counter-productive, don't hesitate to say so.

original here.