As this seems to affect mostly users of the de. mirror I subscribed the owner of that mirror to this bug (hope this is the right way to go about it). Changing to the German NetCologne mirror fixed this issue for me for now. It was an ongoing problem with several Trusty servers for several month.
-- 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 (trusty) Status in apt package in Ubuntu: Confirmed Status in ubuntu-release-upgrader package in Ubuntu: Confirmed 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