(In reply to comment #4) > Thanks for the additonal information. I'm unable to reproduce the problem here. > Can you please attach the output of "apt-get update -o Debug::pkgAcquire=true" > to the bugreport? Is there anything unusual about your setup? a proxy? a > non-intel architecture? In fact I am using a non-caching HTTP proxy that uses authentication. The software's name is Polipo, and I configured it via Acquire::http::Proxy in /etc/apt/apt.conf. It has worked fine though, until recently. Oh, and also, since the repository has been updated, I have a new debug output: -- Excerpt begin henry@ubuntu ~ $ sudo apt-get update -o Debug::pkgAcquire=true Fetching http://archive.ubuntu.com/ubuntu/dists/hoary/Release.gpg to /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_Release.gpg Queue is: http:archive.ubuntu.com Fetching http://archive.ubuntu.com/ubuntu/dists/hoary-security/Release.gpg to /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary-security_Release.gpg Queue is: http:archive.ubuntu.com Get:1 http://archive.ubuntu.com hoary Release.gpg [189B] Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_Release.gpg Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_Release.gpg Fetching http://archive.ubuntu.com/ubuntu/dists/hoary/Release to /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_Release Queue is: http:archive.ubuntu.com Get:2 http://archive.ubuntu.com hoary-security Release.gpg [189B] Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary-security_Release.gpg Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary-security_Release.gpg Fetching http://archive.ubuntu.com/ubuntu/dists/hoary-security/Release to /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary-security_Release Queue is: http:archive.ubuntu.com Get:3 http://archive.ubuntu.com hoary Release [16.5kB] 2% [3 Release 0/16.5kB 0%]Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_Release Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_Release Fetching gpgv:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_Release.gpg to /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_hoary_Release Queue is: gpgv 99% [3 Release gpgv 16462] [Waiting for headers]Dequeuing /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_hoary_Release Fetching http://archive.ubuntu.com/ubuntu/dists/hoary/main/binary-i386/Packages.bz2 to /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_main_binary-i386_Packages Queue is: http:archive.ubuntu.com Fetching http://archive.ubuntu.com/ubuntu/dists/hoary/restricted/binary-i386/Packages.bz2 to /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_restricted_binary-i386_Packages Queue is: http:archive.ubuntu.com Fetching http://archive.ubuntu.com/ubuntu/dists/hoary/universe/binary-i386/Packages.bz2 to /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_universe_binary-i386_Packages Queue is: http:archive.ubuntu.com Ign http://archive.ubuntu.com hoary Release Get:4 http://archive.ubuntu.com hoary-security Release [14.0kB] 63% [4 Release 2896/14.0kB 20%]Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary-security_Release Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary-security_Release Fetching gpgv:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary-security_Release.gpg to /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_hoary-security_Release Queue is: gpgv 99% [4 Release gpgv 14045] [Waiting for headers]Dequeuing /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_hoary-security_Release Fetching http://archive.ubuntu.com/ubuntu/dists/hoary-security/main/binary-i386/Packages.bz2 to /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary-security_main_binary-i386_Packages Queue is: http:archive.ubuntu.com Ign http://archive.ubuntu.com hoary-security Release Get:5 http://archive.ubuntu.com hoary/main Packages [384kB] 91% [5 Packages 348228/384kB 90%]Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_main_binary-i386_Packages Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_main_binary-i386_Packages Fetching bzip2:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_main_binary-i386_Packages to /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_main_binary-i386_Packages.decomp Queue is: bzip2 99% [Waiting for headers]Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_restricted_binary-i386_Packages Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_restricted_binary-i386_Packages Hit http://archive.ubuntu.com hoary/restricted Packages Get:6 http://archive.ubuntu.com hoary/universe Packages [2222kB] 15% [5 Packages bzip2 0] [6 Packages 2429/2222kB 0%]Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_main_binary-i386_Packages.decomp Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_main_binary-i386_Packages.decomp 98% [6 Packages 2185944/2222kB 98%] 116kB/s 0sDequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_universe_binary-i386_Packages Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_universe_binary-i386_Packages Fetching bzip2:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_universe_binary-i386_Packages to /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_universe_binary-i386_Packages.decomp Queue is: bzip2 99% [6 Packages bzip2 0] [Waiting for headers] 116kB/s 0sDequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary-security_main_binary-i386_Packages Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary-security_main_binary-i386_Packages Hit http://archive.ubuntu.com hoary-security/main Packages 99% [6 Packages bzip2 8097792] 116kB/s 0sDequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_universe_binary-i386_Packages.decomp Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_universe_binary-i386_Packages.decomp Fetched 2637kB in 24s (106kB/s) Reading Package Lists... Done Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_Release.gpg Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary-security_Release.gpg Dequeuing /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_hoary_Release Dequeuing /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_hoary-security_Release Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_main_binary-i386_Packages Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_restricted_binary-i386_Packages Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary_universe_binary-i386_Packages Dequeuing /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_hoary-security_main_binary-i386_Packages W: GPG error: http://archive.ubuntu.com hoary Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key