As one can observe he tried to install MySQL twice.
The first installation fails because of some bug I've never seen:
Code:
Creating user `mysql' with uid `88'.
pw: user 'mysql' disappeared during update
*** [create-users-groups] Error code 67
However, the second try fails because the user
mysql already exists.
Delete this user with the following command and retry installing MySQL:
I would also personally recommend to install MySQL 5.6. There is a controversy about whether it is slower or faster than MySQL 5.5 but you will probably not notice much of a difference.
However, it is newer so I would go for it.