This is affecting me as well, on a few servers. # cat /etc/apt/sources.list #deb http://aptproxy.sitehost.co.nz/ubuntu precise main multiverse universe deb http://nz.archive.ubuntu.com/ubuntu precise main multiverse universe restricted deb http://archive.ubuntu.com/ubuntu precise main multiverse universe restricted deb http://archive.ubuntu.com/ubuntu precise-security main multiverse universe restricted
# apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done The following packages have been kept back: linux-headers-server linux-image-server linux-server 0 upgraded, 0 newly installed, 0 to remove and 3 not upgraded. # apt-get install linux-headers-3.2.0-105-generic Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: linux-headers-3.2.0-105-generic : Depends: linux-headers-3.2.0-105 but it is not installable E: Unable to correct problems, you have held broken packages. # dpkg --get-selections|grep -v install$ # # apt-get install linux-headers-3.2.0-105 Reading package lists... Done Building dependency tree Reading state information... Done Package linux-headers-3.2.0-105 is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package 'linux-headers-3.2.0-105' has no installation candidate -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1597517 Title: linux-headers-3.2.0-105 not in precise-security To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1597517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs