I've been having the same problems while running apt-get update, including 'hash sum mismatch' and 'BADSIG' errors. I tried the following:
1. Downloading updated keys sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys <KEY_NAME> sudo apt-get update 2. Clean cache then update (some report success with repeated cycles of this) sudo apt-get clean sudo apt-get update 3. Clear out the list files completely, or just the partials sudo rm -f /var/lib/apt/lists/* sudo rm -f /var/lib/apt/lists/partials/* sudo apt-get update 4. Clear out the status file as it may be corrupted sudo rm /var/lib/dpkg/status sudo touch /var/lib/dpkg/status sudo apt-get update 5. Disable proxy to ensure direct download from the mirror sudo apt-get -o Acquire::http::No-Cache=true -o Acquire::BrokenProxy=true -o Acquire::http::Pipeline-Depth=0 update 6. Try changing to another mirror in "Software & Updates" I tried the following: * ubuntu.ctu.edu.vn (Vietnam - failed - my original mirror) * ubuntu.01link.hk (Hong Kong - failed) * archive.ubuntu.com (Main - failed) * mirror.switch.ch (Switzerland - failed) * mirror-fpt-telecom.fpt.net (Vietnam - success - a mirror hosted by my current ISP) TL;DR Only changing the mirror was able to solve this problem for me. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apt in Ubuntu. https://bugs.launchpad.net/bugs/1373598 Title: apt-get update fails, hash sum mismatches with de.archive.ubuntu.com Status in apt package in Ubuntu: Confirmed Status in ubuntu-release-upgrader package in Ubuntu: Invalid Bug description: 1. Release: Description: Ubuntu 14.04.1 LTS Release: 14.04 2. not a package. The whole distro is broken. 3. I always expect apt-get update to work, at least with Ubuntu's own repositories. 4. "apt-get update" failed, and later "apt-get dist upgrade" It started with this when doing a normal "apt-get update" W: Failed to fetch http://de.archive.ubuntu.com/ubuntu/dists/trusty- updates/main/source/Sources Hash Sum mismatch W: Failed to fetch http://de.archive.ubuntu.com/ubuntu/dists/trusty- updates/main/binary-amd64/Packages Hash Sum mismatch W: Failed to fetch http://de.archive.ubuntu.com/ubuntu/dists/trusty- updates/universe/binary-i386/Packages Hash Sum mismatch E: Some index files failed to download. They have been ignored, or old ones used instead. When doing a dist-upgrade, I then got this: E: mkinitramfs failure cpio 141 gzip 1 update-initramfs: failed for /boot/initrd.img-3.13.0-36-generic with 1. run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 1 Failed to process /etc/kernel/postinst.d at /var/lib/dpkg/info/linux-image-extra-3.13.0-36-generic.postinst line 1025. No apport report written because the error message indicates its a followup error from a previous failure. dpkg: error processing package linux-image-extra-3.13.0-36-generic (--configure): subprocess installed post-installation script returned error exit status 2 dpkg: dependency problems prevent configuration of linux-image-generic: linux-image-generic depends on linux-image-extra-3.13.0-36-generic; however: Package linux-image-extra-3.13.0-36-generic is not configured yet. dpkg: error processing package linux-image-generic (--configure): dependency problems - leaving unconfigured Setting up linux-headers-3.13.0-36 (3.13.0-36.63) ... Setting up linux-headers-3.13.0-36-generic (3.13.0-36.63) ... Examining /etc/kernel/header_postinst.d. run-parts: executing /etc/kernel/header_postinst.d/dkms 3.13.0-36-generic /boot/vmlinuz-3.13.0-36-generic Setting up linux-headers-generic (3.13.0.36.43) ... No apport report written because the error message indicates its a followup error from a previous failure. dpkg: dependency problems prevent configuration of linux-generic: linux-generic depends on linux-image-generic (= 3.13.0.36.43); however: Package linux-image-generic is not configured yet. dpkg: error processing package linux-generic (--configure): dependency problems - leaving unconfigured And later this at the end: Processing triggers for libc-bin (2.19-0ubuntu6.3) ... E: Sub-process /usr/bin/dpkg returned an error code (1) ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: ubuntu-release-upgrader-core 1:0.220.5 ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4 Uname: Linux 3.13.0-34-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.4 Architecture: amd64 CrashDB: ubuntu CurrentDesktop: Unity Date: Wed Sep 24 21:57:55 2014 InstallationDate: Installed on 2013-05-09 (503 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader Symptom: dist-upgrade UpgradeStatus: Upgraded to trusty on 2014-05-04 (142 days ago) VarLogDistupgradeTermlog: To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1373598/+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
