You can invoke it directly, with a complete path, and it will work even if it's not in your $PATH variable. In my personal installation I have context at `/home/andi/Apps/lmtx/tex/texmf-linux-64/bin`, so I can call it saying `/home/andi/Apps/lmtx/tex/texmf-linux-64/bin/context hello-world.tex` and it works fine. 

Is the `texmf-<arch>/bin` folder in your $PATH? or did you create a symlink to a known path folder? If the latter, that could be the cause of your problem. You need the bin folder of context in your path variable. Can you send the output of `echo $PATH`? Does it work if you invoke it with a full path?

El lun, 25 mar 2024 a las 18:14, <hf@hongfeng.ch> escribió:
Hello,

I have installed ConTeXt on my Raspberry Pi 400 (aarch64), tried to typeset this simple file:

```
\starttext

First tex file to make, hello, world!

\stoptext
```

but the test failed:


```
$context hello-world.tex
mtxrun | forcing cache reload
resolvers | resolving | configuration files already identified
resolvers | resolving | skipping configuration file 'selfautoparent:/texmf-context/web2c/texmfcnf.lua' (no valid format)
resolvers | resolving | no texmf paths are defined (using TEXMF)
resolvers | resolving |
mtxrun | the resolver databases are not present or outdated
resolvers | resolving | using suffix based filetype 'lua'
resolvers | resolving | remembering file 'mtx-context.lua' using hash 'lua::mtx-context.lua'
resolvers | resolving | using suffix based filetype 'lua'
resolvers | resolving | remembering file 'mtx-contexts.lua' using hash 'lua::mtx-contexts.lua'
resolvers | resolving | remembered file 'mtx-context.lua'
resolvers | resolving | using suffix based filetype 'lua'
resolvers | resolving | remembering file 'mtx-t-mtx-context.lua' using hash 'lua::mtx-t-mtx-context.lua'
resolvers | resolving | using suffix based filetype 'lua'
resolvers | resolving | remembering file 'mtx-t-mtx-contexts.lua' using hash 'lua::mtx-t-mtx-contexts.lua'
resolvers | resolving | remembered file 'mtx-t-mtx-context.lua'
resolvers | resolving | remembered file 'mtx-context.lua'
mtxrun | unknown script 'mtx-context.lua' or 'mtx-mtx-context.lua'
```

What's wrong with my installation?

Best,
Hong Feng
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