Public bug reported: I have just spent a day and a half trying to find out why my install of 13.10 won't access the network. Finally, with help from another computer, I find that apparmor is denying /usr/lib/NetworkManager/nm- dhcp-client.actions.
The first attempt at an upgrade (due to the withdrawal of support for 13.04 - a bit quick, n'est-ce pas?) was a normal upgrade in place. This failed and the system, that has run well for years through many upgrades, would not start. Then I did a clean install into the partition using a cd I had. This starts, and appears fine, except it won't connect to the network. Investigating logs (once I discovered how to do that) I find that the apparmor application is denying access to dhcp. Fine, so remove apparmor. According to http://ubuntuguide.org/wiki/Ubuntu:Saucy this is simple. But doesn't work. And it needs a network to complete. So next to use aa-complain to stop apparmor blocking. That needs apparmor-utils installed (not part of the distribution it seems). Easy, so download using apt-get on another machine using -d option, transfer across, bingo. Except it isn't. Downloading and transferring leads to an ever- increasing list of unmet dependencies. And files that are already on the second machine don't get downloaded anyway so can't be obtained. End result, a machine that prevents itself from accessing the network so it can fix itself. And no visible workaround. So I don't know exactly what is at fault - the release strategy of only providing a bare machine without the tools to fix problems; the apparmor application that is causing this iatrogenic problem; some other thing I can only guess at. I don't think there is anything special about my machine and certainly there is nothing non-standard about any settings to do with apparmor as I have never touched it. There needs to be a simple way of disabling apparmor without installing any new software into a fresh install, and it must work. ** Affects: apparmor (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1277042 Title: 13.10 apparmor denies dhcp To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1277042/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs