I installed Tex2021 on MacOS 10.13.6 (High Sierra) following the instructions on https://www.tug.org/mactex/mactex-unix-download.html for unsupported osx versions.
The install appears to have succeeded but latex no longer runs:
This is pdfTeX, Version 3.141592653-2.6-1.40.23 (TeX Live 2021) (preloaded format=pdflatex) restricted \write18 enabled.
kpathsea: Running mktexfmt pdflatex.fmt mktexfmt: No such file or directory I can't find the format file `pdflatex.fmt'!
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Problem installing MacTex2021 on osx 10.13.6 (High Sierra)
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