Same here. The error message was
...
Setting up dahdi-dkms (1:2.2.0.2~dfsg-1ubuntu2) ...
Loading new dahdi-2.2.0.2 DKMS files...
First Installation: checking all kernels...
Building for architecture x86_64
Module build for the currently running kernel was skipped since the
kernel source for this kernel does not seem to be installed.
...
dahdi-dkms depends on linux-headers-generic. But I'm running a -virtual kernel. After installing linux-headers-virtual the dahdi module was compiled and installed without errors.
Same here. The error message was 0.2~dfsg- 1ubuntu2) ...
...
Setting up dahdi-dkms (1:2.2.
Loading new dahdi-2.2.0.2 DKMS files...
First Installation: checking all kernels...
Building for architecture x86_64
Module build for the currently running kernel was skipped since the
kernel source for this kernel does not seem to be installed.
...
dahdi-dkms depends on linux-headers- generic. But I'm running a -virtual kernel. After installing linux-headers- virtual the dahdi module was compiled and installed without errors.