I seem to be experiencing this issue also but "sudo rm -rf /var/lib/apt/lists" doesn't seem to help (I think maybe it did during the first install but my memory of the magic spells the first time isn't that good at this point). We do have a firewall here that returns configuration instructions for the proxy script. This may go south even during the install because I configured the script as soon as the system came up and have spent the rest of the day trying to get around this issue with apt-get. This is Ubuntu 11.04 (a 2nd install due catastrophic hard drive failure last weekend).
hill@Taz:~$ ls /var/lib/apt/lists/lock /var/lib/apt/lists/lock hill@Taz:~$ sudo apt-get update Ign http://us.archive.ubuntu.com natty InRelease Ign http://us.archive.ubuntu.com natty-updates InRelease Ign http://extras.ubuntu.com natty InRelease Ign http://security.ubuntu.com natty-security InRelease Ign http://us.archive.ubuntu.com natty Release.gpg Ign http://extras.ubuntu.com natty Release.gpg .. sudo rm -rf /var/lib/apt/lists hill@Taz:~$ sudo apt-get update Ign http://us.archive.ubuntu.com natty InRelease Ign http://security.ubuntu.com natty-security InRelease Ign http://us.archive.ubuntu.com natty-updates InRelease Ign http://security.ubuntu.com natty-security Release.gpg Ign http://us.archive.ubuntu.com natty Release.gpg Ign http://security.ubuntu.com natty-security Release ... hill@Taz:~$ sudo fuser -vvv /var/lib/dpkg/lock hill@Taz:~$ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=11.04 DISTRIB_CODENAME=natty DISTRIB_DESCRIPTION="Ubuntu 11.04" hill@Taz:~$ uname -a Linux dingy 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:50 UTC 2011 i686 athlon i386 GNU/Linux hill@Taz:~$ sudo rm /var/lib/apt/lists/lock hill@Taz:~$ sudo cp -arf /var/lib/dpkg /var/lib/dpkg.backup hill@Taz:~$ sudo cp /var/lib/dpkg/status-old /var/lib/dpkg/status hill@Taz:~$ sudo cp /var/lib/dpkg/available-old /var/lib/dpkg/available hill@Taz:~$ sudo rm -rf /var/lib/dpkg/updates/* hill@Taz:~$ sudo rm -rf /var/lib/apt/lists hill@Taz:~$ sudo rm /var/cache/apt/*.bin hill@Taz:~$ sudo mkdir /var/lib/apt/lists hill@Taz:~$ sudo mkdir /var/lib/apt/lists/partial hill@Taz:~$ LANG=C;sudo apt-get clean [sudo] password for hill: hill@Taz:~$ LANG=C;sudo apt-get autoclean Reading package lists... Done Building dependency tree Reading state information... Done hill@Taz:~$ LANG=C;sudo apt-get --purge autoremove Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. hill@Taz:~$ LANG=C;sudo apt-get update -o APT::Cache-Limit=25165824 Ign http://security.ubuntu.com natty-security InRelease Ign http://us.archive.ubuntu.com natty InRelease Ign http://us.archive.ubuntu.com natty-updates InRelease ... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/346386 Title: [MASTER] Update fails with invalid package files with "Encountered a section with no Package: header" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/346386/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
