Please note the following line in your dmesg output: [ 7638.743797] [Hardware Error]: Machine check events logged
This is a hardware error; it is near several instances of your CPUs becoming too hot. Check your CPU fans, heatsinks, and make sure they aren't clogged with dust or otherwise non-functional. There are other errors in your dmesg that may be unrelated to overheating, hopefully someone else can help there. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1309976 Title: package linux-image-3.5.0-48-generic 3.5.0-48.72~precise1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub/+bug/1309976/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
