file fmutil

[David Carlisle]

> PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:

so as stated originally your PATH is wrong: you have the standard bin
directories in front of the texlive 2025, so you are using the debian
system texlive not texlive 2025 from tug.

but you are getting the texlive mktexfmt presumably you do not have a copy
of that with the system tex.


On Wed, 26 Nov 2025 at 23:41, Greg Bennett <gwbennett997 at gmail.com> wrote:

> Karl, yes I am.
>
> Running a test file from the command line all references are to
> /usr/local/texlive/2025/and friends
>
> Here's what I get in TeXstudio's Messages tab after using it on the same
> test file:
>
> Process started: pdflatex -synctex=1 -interaction=nonstopmode "gtest".tex
>
> kpathsea: Running mktexfmt pdflatex.fmt
>
> PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/usr/local/texlive/2025/bin/x86_64-linux
> Use of uninitialized value $TEXFMROOT in concatenation (.) or string at
> /usr/local/texlive/2025/bin/x86_64-linux/mktexfmt line 19. got:
> /usr/local/texlive/2025/bin/x86_64-linux/mktexfmt: kpsewhich
> -var-value=TEXMFROOT failed, aborting early. BEGIN failed--compilation
> aborted at /usr/local/texlive/2025/bin/x86_64-linux/mktexfmt line 27.
>
> Process exited with error(s)
>
> It seems that $TEXFMROOT is standing in the way.
>
> I don't know why mktexfmt is being run either. The formats were made by tl
> during installation.
>
> Thanks for the help,
> Greg
>
> On 2025-11-26 17:18, Karl Berry wrote:
>
> Greg, I wonder if PATH that fmtutil is running with is somehow not the
> same PATH as you are running from the command line.
>
> Are you still trying to get this to work under TeXstudio (or another
> frontend), or does the error happen on the command line? If it's only
> TeXstudio, I would guess you need to configure the frontend, somehow.
> (I've never used them, so don't know specifics.)
>
> There's also a question of why mktexfmt is being run at all, since
> installation normally creates all the .fmt files (unless you explicitly
> disabled that). Which also, together with your question about
> /usr/share, sounds like the frontend is not finding your TL25
> installation, and is instead using what's on the system
> (/usr/bin/... instead of /usr/local/texlive/2025/...).
>
> Finally, can you try adding these two debugging lines to your fmtutil.pl
> and show us what the output is? (I rather suspect a different fmtutil.pl
> is being called and you won't see this output.)
>
> --- fmtutil.pl	(revision 76944)
> +++ fmtutil.pl	(working copy)
> @@ -17,2 +17,4 @@ BEGIN {
>    $TEXMFROOT = `kpsewhich -var-value=TEXMFROOT`;
> +  warn "PATH=$ENV{PATH}\n";
> +  warn "got: $TEXMFROOT\n";
>    if ($?) {
>
>
>
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