请问大家，我的宝塔在安装mysql的时候，提示安装失败，报错信息如下：

install soft.sh: line 20: wget: command not found

Loaded plugins: fastestmirror, product id, search-disabled- repos, subscription-
: manager
This system is not registered with an entitlement server. You can use subscription-
manager to register.
No Match for argument: mysql- devel
No Packages marked for removal
groupadd: group 'mysql" already exists
useradd: user 'mysql' already exists
mysql.sh: line 84: wget: command not found
error: open of bt- mysql55.rpm failed: No such file or directory

请问是什么原因导致的，求解决方案。