Kernel Panic Troubleshooting For Dummies

Solution 1:

My ideas:

• Make sure you always keep at least one older and stable kernel version installed.
  That way, if a new kernel update causes the panic, you will still be able to restart your system with the old one.

• Write down as much information as you can regarding the error.
  Take a photo of the screen output with your mobile phone perhaps.
  Post these messages here or in other related forums so that someone else can help you out.

• Keep an Ubuntu Live-CD always close.
  A package update might screw things up, but you'll still be able to boot and through a chroot make the necessary uninstallation/reinstallation of the package.