Trouble upgrading ldso on slink

[Rajiv Garg <gargr@deshaw.com>]

Hi list,

    I currently have a slink system with lib6-2.0.7, I need to upgrade 
it to 2.1.2-10 thats in the potato distribution.  Prior to doing so, I 
need to upgrade ldso from 1.9.10 to 1.9.11.  I downloaded the .deb
file for 1.9.11 from potato and tried to install but get the
following error message.  Does anyone have any suggestions as to what
may be the problem here and how it may be resolved?

# dpkg --install ldso_1.9.11-5.deb 
(Reading database ... 15805 files and directories currently installed.)
Preparing to replace ldso 1.9.10-1 (using ldso_1.9.11-5.deb) ...
Unpacking replacement ldso ...
dpkg-deb: subprocess paste killed by signal (Broken pipe)
dpkg: error processing ldso_1.9.11-5.deb (--install):
 subprocess dpkg-deb --fsys-tarfile returned error exit status 2
mv: `ld.so.1.9.10' and `ld.so' are the same file
dpkg: error while cleaning up:
 subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
 ldso_1.9.11-5.deb

I tried moving /lib/ld.so.1.9.10 /lib/ld.so.1.9.10.bak, but get the
following error:

# dpkg --install ldso_1.9.11-5.deb 
(Reading database ... 15805 files and directories currently installed.)
Preparing to replace ldso 1.9.10-1 (using ldso_1.9.11-5.deb) ...
Unpacking replacement ldso ...
dpkg-deb: subprocess paste killed by signal (Broken pipe)
dpkg: error processing ldso_1.9.11-5.deb (--install):
 subprocess dpkg-deb --fsys-tarfile returned error exit status 2
Errors were encountered while processing:
 ldso_1.9.11-5.deb

Afterwards, I ran apt-get -f install to reinstate ldso_1.9.10.

Many thanks.  Rajiv.