Apt-get appears e:encountered a section with no package:header ... The solution
E:encountered A and no Package:header, E:problem with mergelist/var/lib/apt/lists/******
First thought is apt lists in the package does not have the Mysql-server, therefore runs the command apt-get update updates list list, but still reported the above error, Hint is the package entry file for one of the mirror sites in lists could not being parsed or opened.
Recall the last call to Apt-get update because the update time is too long I directly CTRL + C abort the situation, may be due to a file in lists did not download complete, there is a resolution error.
Available solutions: Delete all the list files under/var/lib/apt/lists/and then update them, as follows:
sudo apt-get update