apt-get install linux-headers-2.6.20-16-generic
Reading package lists... Done
Building dependency tree
Reading state information... Done
linux-headers-2.6.20-16-generic is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
2 not fully installed or removed.
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Setting up cpad-kernel-source (0.10-3) ...
[: 79: 13262: unexpected operator
Warning: kernel headers don't match running Linux version.
Building cpad module for Linux _CODE 13262 (this may take a few minutes)...dpkg: error processing cpad-kernel-source (--configure):
subprocess post-installation script returned error exit status 2
Setting up wacom-kernel-source (0.7.7.7-0ubuntu1) ...
[: 79: 13262: unexpected operator
Warning: kernel headers don't match running Linux version.
Building wacom modules for Linux _CODE 13262 (this may take a few minutes)...dpkg: error processing wacom-kernel-source (--configure):
subprocess post-installation script returned error exit status 2
Errors were encountered while processing:
cpad-kernel-source
wacom-kernel-source
E: Sub-process /usr/bin/dpkg returned an error code (1)