我使用 apt install mysql-server 在 16.04上安装 MySQL，但是在安装过程中，它没有请求 root 密码。
安装之后我得到 ERROR 1045，当我尝试登录 root，mysql_secure_installation 出现了同样的错误。
怎么修复这个问题/p>
这是我的安装日志：The following additional packages will be installed:
libaio1 mysql-client-5.7 mysql-client-core-5.7 mysql-server-5.7
mysql-server-core-5.7
Suggested packages:
mailx tinyca
The following NEW packages will be installed:
libaio1 mysql-client-5.7 mysql-client-core-5.7 mysql-server mysql-server-5.7
mysql-server-core-5.7
0 upgraded, 6 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/17,9 MB of archives.
After this operation, 160 MB of additional disk space will be used.
Do you want to continue[Y/n] y
Preconfiguring packages.. .
Selecting previously unselected package libaio1:amd64.
(Reading database.. . 227144 files and directories currently installed.)
Preparing to unpack.. ./libaio1_0.3.110-2_amd64.deb.. .
Unpacking libaio1:amd64 (0.3.110-2).. .
Selecting previously unselected package mysql-client-core-5.7.
Preparing to unpack.. ./mysql-client-core-5.7_5.7.12-0ubuntu1_amd64.deb.. .
Unpacking mysql-client-core-5.7 (5.7.12-0ubuntu1).. .
Selecting previously unselected package mysql-client-5.7.
Preparing to unpack.. ./mysql-client-5.7_5.7.12-0ubuntu1_amd64.deb.. .
Unpacking mysql-client-5.7 (5.7.12-0ubuntu1).. .
Selecting previously unselected package mysql-server-core-5.7.
Preparing to unpack.. ./mysql-server-core-5.7_5.7.12-0ubuntu1_amd64.deb.. .
Unpacking mysql-server-core-5.7 (5.7.12-0ubuntu1).. .
Selecting previously unselected package mysql-server-5.7.
Preparing to unpack.. ./mysql-server-5.7_5.7.12-0ubuntu1_amd64.deb.. .
Unpacking mysql-server-5.7 (5.7.12-0ubuntu1).. .
Selecting previously unselected package mysql-server.
Preparing to unpack.. ./mysql-server_5.7.12-0ubuntu1_all.deb.. .
Unpacking mysql-server (5.7.12-0ubuntu1).. .
Processing triggers for libc-bin (2.23-0ubuntu3).. .
Processing triggers for man-db (2.7.5-1).. .
Processing triggers for systemd (229-4ubuntu4).. .
Processing triggers for ureadahead (0.100.0-19).. .
Setting up libaio1:amd64 (0.3.110-2).. .
Setting up mysql-client-core-5.7 (5.7.12-0ubuntu1).. .
Setting up mysql-client-5.7 (5.7.12-0ubuntu1).. .
Setting up mysql-server-core-5.7 (5.7.12-0ubuntu1).. .
Setting up mysql-server-5.7 (5.7.12-0ubuntu1).. .
update-alternatives: using/etc/mysql/mysql.cnf to provide/etc/mysql/my.cnf (my.cnf) in auto mode
Checking if update is needed.
This installation of MySQL is already upgraded to 5.7.12, use –force if you still need to run mysql_upgrade
Setting up mysql-server (5.7.12-0ubuntu1).. .
Processing triggers for libc-bin (2.23-0ubuntu3).. .
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