/etc/texmf/updmap.d/10texlive-math-extra.cfg is in texlive-math-extra 2009-10ubuntu1.
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 | # 10texlive-math-extra.cfg
# You can change/add entries to this file and changes will be preserved
# over upgrades, even if you have removed the main package prior
# (not if you purged it). You should leave the following pseudo comment
# present in the file!
# -_- DebPkgProvidedMaps -_-
#
MixedMap yhmath.map
MixedMap stmaryrd.map
|