Bug#249447: Similar Issue
This maybe related... Maybe not. I am not an X expert. However the
problem seems familiar.
I am running Debian Unstable. My current xserver-xfree86 package is as
iU xserver-xfree8 4.3.0.dfsg.1-1 the XFree86 X server
However when I try to upgrade it fails with the following message:
Reading Package Lists... Done
Building Dependency Tree... Done
The following packages will be upgraded:
1 upgraded, 0 newly installed, 0 to remove and 94 not upgraded.
162 not fully installed or removed.
Need to get 0B/5626kB of archives.
After unpacking 545kB of additional disk space will be used.
Preconfiguring packages ...
xserver-xfree86 failed to preconfigure, with exit status 127
(Reading database ... 75979 files and directories currently installed.)
Preparing to replace xserver-xfree86 4.3.0.dfsg.1-1 (using
dpkg: error processing
subprocess pre-installation script returned error exit status 127
Errors were encountered while processing:
E: Sub-process /usr/bin/dpkg returned an error code (1)
Let me know if there is more information I can provide.