Jail & git

[Svobi]

Hi!

I've got Plesk (11.5.30 Update #50) running on a debian 7. I've got the jail surrounding for a specific domain. Now that user want's to use git commands. I already copied (hopefully all) the neccessary files into the jail but it's still not working 100% and hope to find some help here:

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bash-4.2$ git submodule update --init
Submodule '_tools/docker' () registered for path '_tools/docker'
Submodule '_tools/fabalicious' () registered for path '_tools/fabalicious'
/usr/lib/git-core/git-submodule: 135: /usr/lib/git-core/git-submodule: dirname: not found
fatal: Could not switch to '.git/modules/_tools': No such file or directory
Clone of 'https://github.com/factorial-io/drupal-docker.git' into submodule path '_tools/docker' failed
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The init command gives me these errors. Any idea?

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bash-4.2$ git diff .htaccess
WARNING: terminal is not fully functional
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Very general one. I already searched and tried export term=xterm within the jail for example but no effect at all.

Any idea & help really appreciated!

Kind regards!