I have a debian machine running on debian "bookworm". I tried to install freesurfer ubuntu 7.4.1 deb package and had issues with dependencies. 

1. Depends: language-pack-en but it is not installable

2. Depends: libc6 ( < 2.36) but 2.36-9+deb12u9 is to be stalled.

For dependency issue 1, 

When I ran locale -a, here is what I got:

"

C

C.utf8

en_us.utf8

POSIX

"

and file /etc/default/locale contains:

LANG="en_US.UTF-8"

And for dependency issue 2,

When I run apt show -a libc6

packet libc6 version "2.36-9+deb12u9" already installed.

So how do I resolve this discrepancy?

Thanks!