Brian, Thanks for working this problem. Here are the results of the commands you asked for. I'm wondering about the package apt-cache couldn't find.
arnold@arnold:~$ apt-cache policy Package files: 100 /var/lib/dpkg/status release a=now 500 http://extras.ubuntu.com/ubuntu/ precise/main i386 Packages release v=12.04,o=LP-PPA-app-review-board,a=precise,n=precise,l=Application Review Board PPA,c=main origin extras.ubuntu.com 500 http://security.ubuntu.com/ubuntu/ precise-security/universe Translation-en 500 http://security.ubuntu.com/ubuntu/ precise-security/restricted Translation-en 500 http://security.ubuntu.com/ubuntu/ precise-security/multiverse Translation-en 500 http://security.ubuntu.com/ubuntu/ precise-security/main Translation-en 500 http://security.ubuntu.com/ubuntu/ precise-security/multiverse i386 Packages release v=12.04,o=Ubuntu,a=precise-security,n=precise,l=Ubuntu,c=multiverse origin security.ubuntu.com 500 http://security.ubuntu.com/ubuntu/ precise-security/universe i386 Packages release v=12.04,o=Ubuntu,a=precise-security,n=precise,l=Ubuntu,c=universe origin security.ubuntu.com 500 http://security.ubuntu.com/ubuntu/ precise-security/restricted i386 Packages release v=12.04,o=Ubuntu,a=precise-security,n=precise,l=Ubuntu,c=restricted origin security.ubuntu.com 500 http://security.ubuntu.com/ubuntu/ precise-security/main i386 Packages release v=12.04,o=Ubuntu,a=precise-security,n=precise,l=Ubuntu,c=main origin security.ubuntu.com 500 http://us.archive.ubuntu.com/ubuntu/ precise-backports/universe Translation-en 500 http://us.archive.ubuntu.com/ubuntu/ precise-backports/restricted Translation-en 500 http://us.archive.ubuntu.com/ubuntu/ precise-backports/multiverse Translation-en 500 http://us.archive.ubuntu.com/ubuntu/ precise-backports/main Translation-en 100 http://us.archive.ubuntu.com/ubuntu/ precise-backports/multiverse i386 Packages release v=12.04,o=Ubuntu,a=precise-backports,n=precise,l=Ubuntu,c=multiverse origin us.archive.ubuntu.com 100 http://us.archive.ubuntu.com/ubuntu/ precise-backports/universe i386 Packages release v=12.04,o=Ubuntu,a=precise-backports,n=precise,l=Ubuntu,c=universe origin us.archive.ubuntu.com 100 http://us.archive.ubuntu.com/ubuntu/ precise-backports/restricted i386 Packages release v=12.04,o=Ubuntu,a=precise-backports,n=precise,l=Ubuntu,c=restricted origin us.archive.ubuntu.com 100 http://us.archive.ubuntu.com/ubuntu/ precise-backports/main i386 Packages release v=12.04,o=Ubuntu,a=precise-backports,n=precise,l=Ubuntu,c=main origin us.archive.ubuntu.com 500 http://us.archive.ubuntu.com/ubuntu/ precise-updates/universe Translation-en 500 http://us.archive.ubuntu.com/ubuntu/ precise-updates/restricted Translation-en 500 http://us.archive.ubuntu.com/ubuntu/ precise-updates/multiverse Translation-en 500 http://us.archive.ubuntu.com/ubuntu/ precise-updates/main Translation-en 500 http://us.archive.ubuntu.com/ubuntu/ precise-updates/multiverse i386 Packages release v=12.04,o=Ubuntu,a=precise-updates,n=precise,l=Ubuntu,c=multiverse origin us.archive.ubuntu.com 500 http://us.archive.ubuntu.com/ubuntu/ precise-updates/universe i386 Packages release v=12.04,o=Ubuntu,a=precise-updates,n=precise,l=Ubuntu,c=universe origin us.archive.ubuntu.com 500 http://us.archive.ubuntu.com/ubuntu/ precise-updates/restricted i386 Packages release v=12.04,o=Ubuntu,a=precise-updates,n=precise,l=Ubuntu,c=restricted origin us.archive.ubuntu.com 500 http://us.archive.ubuntu.com/ubuntu/ precise-updates/main i386 Packages release v=12.04,o=Ubuntu,a=precise-updates,n=precise,l=Ubuntu,c=main origin us.archive.ubuntu.com 500 http://us.archive.ubuntu.com/ubuntu/ precise/universe Translation-en 500 http://us.archive.ubuntu.com/ubuntu/ precise/restricted Translation-en 500 http://us.archive.ubuntu.com/ubuntu/ precise/multiverse Translation-en 500 http://us.archive.ubuntu.com/ubuntu/ precise/main Translation-en 500 http://us.archive.ubuntu.com/ubuntu/ precise/multiverse i386 Packages release v=12.04,o=Ubuntu,a=precise,n=precise,l=Ubuntu,c=multiverse origin us.archive.ubuntu.com 500 http://us.archive.ubuntu.com/ubuntu/ precise/universe i386 Packages release v=12.04,o=Ubuntu,a=precise,n=precise,l=Ubuntu,c=universe origin us.archive.ubuntu.com 500 http://us.archive.ubuntu.com/ubuntu/ precise/restricted i386 Packages release v=12.04,o=Ubuntu,a=precise,n=precise,l=Ubuntu,c=restricted origin us.archive.ubuntu.com 500 http://us.archive.ubuntu.com/ubuntu/ precise/main i386 Packages release v=12.04,o=Ubuntu,a=precise,n=precise,l=Ubuntu,c=main origin us.archive.ubuntu.com Pinned packages: arnold@arnold:~$ apt-cache policy libpython2.7-minimal N: Unable to locate package libpython2.7-minimal N: Couldn't find any package by regex 'libpython2.7-minimal' arnold@arnold:~$ -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to software-properties in Ubuntu. https://bugs.launchpad.net/bugs/1491613 Title: sudo add-apt-repository ppa:stellarium/stelarium-releases causes python error Status in software-properties package in Ubuntu: Incomplete Bug description: arnold@arnold:~$ sudo add-apt-repository ppa:stellarium/stellarium-releases [sudo] password for arnold: You are about to add the following PPA to your system: This archive contains packages for the officially released, stable versions of Stellarium. The packages are created by the Stellarium developers team and are not official Ubuntu packages. For source packages and installers for other operating systems, please visit Stellarium's website: http://stellarium.org/ More info: https://launchpad.net/~stellarium/+archive/ubuntu/stellarium-releases Press [ENTER] to continue or ctrl-c to cancel adding it Exception in thread Thread-1: Traceback (most recent call last): File "/usr/lib/python2.7/threading.py", line 551, in __bootstrap_inner self.run() File "/usr/lib/python2.7/dist-packages/softwareproperties/ppa.py", line 99, in run self.add_ppa_signing_key(self.ppa_path) File "/usr/lib/python2.7/dist-packages/softwareproperties/ppa.py", line 132, in add_ppa_signing_key tmp_keyring_dir = tempfile.mkdtemp() File "/usr/lib/python2.7/tempfile.py", line 322, in mkdtemp name = names.next() File "/usr/lib/python2.7/tempfile.py", line 141, in next letters = [choose(c) for dummy in "123456"] File "/usr/lib/python2.7/random.py", line 274, in choice return seq[int(self.random() * len(seq))] # raises IndexError if seq is empty ValueError: cannot convert float NaN to integer It seems to be saying there's a python problem. Can you help me decode it, or send it to a member of your team? If there's a better way to get in touch with the team, then let me know. I'm probably breaking some rule of etiquette by contacting you directy. I tried the same thing on my laptop and it worked perfectly. It's also a 12.04 system. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: update-manager 1:0.156.14.19 ProcVersionSignature: Ubuntu 3.2.0-89.127-generic-pae 3.2.69 Uname: Linux 3.2.0-89-generic-pae i686 NonfreeKernelModules: nvidia ApportVersion: 2.0.1-0ubuntu17.9 Architecture: i386 CurrentDmesg.txt: [ 17.922478] agpgart-nvidia 0000:00:00.0: AGP 2.0 bridge [ 17.922495] agpgart-nvidia 0000:00:00.0: putting AGP V2 device into 4x mode [ 17.922553] nvidia 0000:02:00.0: putting AGP V2 device into 4x mode [ 26.528012] eth0: no IPv6 routers present [ 78.940108] ondemand governor failed, too long transition latency of HW, fallback to performance governor Date: Wed Sep 2 17:57:12 2015 DpkgHistoryLog.txt: Start-Date: 2015-09-02 16:34:46 Commandline: aptdaemon role='role-commit-packages' sender=':1.77' Upgrade: bind9-host:i386 (9.8.1.dfsg.P1-4ubuntu0.12, 9.8.1.dfsg.P1-4ubuntu0.13), dnsutils:i386 (9.8.1.dfsg.P1-4ubuntu0.12, 9.8.1.dfsg.P1-4ubuntu0.13), libdns81:i386 (9.8.1.dfsg.P1-4ubuntu0.12, 9.8.1.dfsg.P1-4ubuntu0.13), libexpat1:i386 (2.0.1-7.2ubuntu1.1, 2.0.1-7.2ubuntu1.2), libisccc80:i386 (9.8.1.dfsg.P1-4ubuntu0.12, 9.8.1.dfsg.P1-4ubuntu0.13), liblwres80:i386 (9.8.1.dfsg.P1-4ubuntu0.12, 9.8.1.dfsg.P1-4ubuntu0.13), libbind9-80:i386 (9.8.1.dfsg.P1-4ubuntu0.12, 9.8.1.dfsg.P1-4ubuntu0.13), libisccfg82:i386 (9.8.1.dfsg.P1-4ubuntu0.12, 9.8.1.dfsg.P1-4ubuntu0.13), libisc83:i386 (9.8.1.dfsg.P1-4ubuntu0.12, 9.8.1.dfsg.P1-4ubuntu0.13) End-Date: 2015-09-02 16:35:10 GsettingsChanges: com.ubuntu.update-manager first-run false com.ubuntu.update-manager launch-time 1441228111 com.ubuntu.update-manager window-height 518 com.ubuntu.update-manager window-width 609 InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release i386 (20120817.3) MarkForUpload: True PackageArchitecture: all ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: update-manager Symptom: ubuntu-release-upgrader-core UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/1491613/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp