/usr/share/ltsp/plugins/ltsp-build-client/Debian/010-var-lib-nfs is in ltsp-server 5.5.7-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 | case "$MODE" in
after-install)
# make sure this is really existing before bind mounting it
mkdir $ROOT/var/lib/nfs
;;
esac
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