Permission problem installing to Mapped Network Drive

[Alan]

I originally thought this problem was due to installing as non-admin, but
further investigation has led me to conclude the problem is due to
installing to a Mapped Network Drive (or even a drive other than C:).

I am trying to install cygwin on a non-networked computer as a non-admin
user. But for now I am installing it on a computer running XP, with a
network connection and as an admin user. To mimic the remote case, I set
up a Mapped Network Drive, for which I have full access privileges. I need
the texlive-collection-latex package, so have installed that.

The installation fails with 

Package: fontconfig
	fontconfig.sh exit code 13
Package: texlive-collection-basic
	texlive-collection-basic.sh exit code 11

and running latex at a terminal window gives

-bash: /usr/bin/latex: cannot execute binary file

$ chmod +x /usr/bin/latex
$ ls -l /usr/bin/latex
-rw-r--r-- 1 curtis None 21 Jan 25 20:04 /usr/bin/latex

I can't change the permissions. How do I fix this?


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