The recently updated package qemu-kvm of version 1.0+noroms-0ubuntu12 depends on qemu-common of the same version which is not available. This causes problems for some automated installation scripts (e.g. DevStack) resulting in ...
root@localhost:~# apt-get install qemu-kvm
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:
qemu-kvm : Depends: qemu-common (>= 1.0+noroms-0ubuntu12) but 1.0+noroms-0ubuntu11 is to be installed
E: Unable to correct problems, you have held broken packages.
Additional info
root@localhost:~# lsb_release -rd
Description: Ubuntu precise (development branch)
Release: 12.04
root@localhost:~# apt-cache policy qemu-kvm
qemu-kvm:
Installed: (none)
Candidate: 1.0+noroms-0ubuntu12
Version table:
1.0+noroms-0ubuntu12 0
500 http://us.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
Expected behavior: the package can be installed
Thanks for reporting this bug.
This looks like a strange transient error due to the archive mirroring. Could you re-try? qemu-common of the same version should be available and all should succeed.