/etc/texmf/dvi2ps/morisawa is in dvi2ps-fontdesc-morisawa5 0.5.
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 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35  | # dvi2ps font description file for Debian
##########################################################################
#
# printer spec
#
# predefined fontdesc files for printers are
# LW16, LWII, PS200, PS360, PS400, PS600, PS720, RichoSP10, SPARC.
# In Debian, LW16 is used by default.
# TeXLive 2012 uses /usr/share/texlive/texmf-dist so defined "texl"
define	extra	morisawa5
define	texl	/usr/share/texlive/texmf-dist/fonts
##########################################################################
#
# font selection for japanese
#
fontdesc	fonts$kpse/asc-$extra
#
#	pTeX / ASCII jtex
#
#fontdesc	fonts$kpse/ntt-bikanji
fontdesc	fonts$kpse/asc-bikanji
##########################################################################
#
# font selection
#
# you need to install tetex-extra for the next two settings to work.
# if you don't want to use BlueSky postscript cm fonts, comment the next line.
fontdesc	fonts$kpse/fonts-t1
# use PSNFSS fonts
fontdesc	fonts$kpse/psfonts
fontdesc	fonts$kpse/fonts-bitmap
fontdesc	fonts$kpse/generate
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