As per to the instructions from the blog
Updating BackTrack to 2.6.34
first command worked fine with me however at second command
I choosed Y to upgrade but it cause the following:
Blue Screen appears: Package Configuration, Configuring Linux-image-2.6.34 with the following note:
You are attempting to install a kernel image (version 2.6.34) However, the directory /lib/modules/2.6.34/kernel still exists. If this directory belongs to a previous linux-image-2.6.34 package, and if you have deselected some modules, or installed standalone modules packages, this could be bad.
If /lib/modules/2.6.34/kernel belongs to a old install of
linux-image-2.6.34, then this is your last chance to abort the
installation of this kernel image (nothing has been changed yet).
If you know what you are doing, and if you feel that this image should
be installed despite this anomaly, Please answer n to the question.
Otherwise, I suggest you move /lib/modules/2.6.34/kernel out of the way, perhaps to /lib/modules/2.6.34.kernel.old or something, and then try re-installing this image.