This was also a problem in 9.10 as well as 9.10 server. It appears that the linux headers installed don't match the current linux kernel version.
After the ubuntu upgrade completed I re-run apt-get install dahdi-dkms This fix the problem. I wonder if there is some sort of install order issue where the required headers are not installed until after dahdi is built. In 9.10 server it appeared that apt-get install linux-headers was installing a version of the headers that was more recent than the running kernel. I don't know if that somehow relates to this problem. -- package dahdi-dkms 1:2.2.1+dfsg-1ubuntu1 failed to install/upgrade: dahdi kernel module failed to build https://bugs.launchpad.net/bugs/563200 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs