dpkg error: unable to make backup link of '...'

[ying lcs]

Hi,

I have been getting this dpkg error: unable to make backup link of '...'.
I have been posting my question on various forum and I still cant' resolve it.

dpkg: error processing
/var/cache/apt/archives/xfonts-encodings_1%3a1.0.2-3_all.deb
(--unpack):
 unable to make backup link of
`./usr/share/fonts/X11/encodings/large/big5hkscs-0.enc.gz' before
installing new version: Operation not permitted
dpkg-deb: subprocess paste killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/python-gnome2-extras_2.19.1-0ubuntu7_i386.deb
 /var/cache/apt/archives/xfonts-encodings_1%3a1.0.2-3_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

The closest thing I can find in google is this bug report.

https://bugs.launchpad.net/ubuntu/+source/dpkg/+bug/93320

But i don't know how to solve my problem.

I appreciate if anyone can help.