glibc2.1 and potato

[Paulo Henrique Baptista de Oliveira <baptista@cos.ufrj.br>]

    Hi Debian users,
    I tried to upgrade my Sun Sparc 5 to potato and this error occurs:
    What I can do?
    Have a nice day,        Paulo Henrique

Preparing to replace libc6 2.0.105-2 (using .../libc6_2.1.1-5_sparc.deb)
...
WARNING: Your sun4m cpu is known to have problems with
the current glibc 2.1.1. To avoid problems, this libc6
install will fail. When the conflicts are resolved, a
version will be installed that does not fail this check.
dpkg: error processing /var/cache/apt/archives/libc6_2.1.1-5_sparc.deb
(--unpack):
 subprocess pre-installation script returned error exit status 1
Errors were encountered while processing:
 /var/cache/apt/archives/libc6_2.1.1-5_sparc.deb
E: Sub-process returned an error code (1)