Thank you for taking the time to report this bug and helping to make Ubuntu better. Reviewing your dmesg attachment to this bug report it seems that there may be a problem with your hardware. I'd recommend performing a back up and then investigate the situation. Measures you might take include checking cable connections and using software tools to investigate the health of your hardware. Thanks and good luck!
** Changed in: openjdk-6 (Ubuntu) Status: New => Invalid ** Tags added: hardware-error -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/773721 Title: package openjdk-6-jre-headless (not installed) failed to install/upgrade: short read on buffer copy for backend dpkg-deb during `./usr/lib/jvm/java-6-openjdk/jre/lib/rt.jar' -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs