apt-get dist-upgrade

I am using Ubuntu 12.04.2 LTS (“precise”). I am trying to upgrade all packages using kernel via apt-get upgrade method. But, I am getting the following message:

apt-get upgrade

Reading package lists… Done

Building dependency tree

Reading state information… Done

The following packages have been kept back:

linux-headers-virtual linux-image-virtual mysql-client-5.5 mysql-server-5.5

mysql-server-core-5.5


The following packages will be upgraded:

base-files dosfstools linux-libc-dev linux-libc-dev:i386

4 upgraded, 0 newly installed, 0 to remove and 5 not upgraded.

Need to get 1,847 kB of archives.

After this operation, 2,048 B of additional disk space will be used.

Do you want to continue [Y/n]?



How do I fix this issue and install linux-headers-virtual linux-image-virtual packages which have been kept back in Ubuntu Linux LTS version 12.04.2?

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