apt-getのアップグレード中にmysql-community-serverパッケージの処理中にエラーが発生しました。

この問題をどのように解決できますか？

root@ip-*******:/# apt-get upgrade 
Reading package lists... Done    
Building dependency tree    
Reading state information... Done    
Calculating upgrade... Done    
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.    
2 not fully installed or removed.    
After this operation, 0 B of additional disk space will be used.    
Do you want to continue? [Y/n] y    
Setting up mysql-community-server (5.7.19-1ubuntu16.04) ...    
Job for mysql.service failed because the control process exited with error code.    
See "systemctl status mysql.service" and "journalctl -xe" for details.    
invoke-rc.d: initscript mysql, action "start" failed.
    ● mysql.service - MySQL Community Server    
   Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor reset: enabled)    
   Active: activating (auto-restart) (Result: exit-code) since Fri 2017-09-01 12:16:18 UTC; 4ms ago    
   Main PID: 16929 (code=exited, status=0/SUCCESS)    
dpkg: error processing package mysql-community-server (--configure):    
 subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of mysql-server:
 mysql-server depends on mysql-community-server (= 5.7.19-1ubuntu16.04);   however:
  Package mysql-community-server is not configured yet.    
dpkg: error processing package mysql-server (--configure):    
 dependency problems - leaving unconfigured    
No apport report written because the error message indicates its a followup error from a previous failure.    
Errors were encountered while processing:
 mysql-community-server
 mysql-server
E: Sub-process /usr/bin/dpkg returned an error code (1)

そしてそれはすべて同じエラーです。

次に追加：

root@ip-172-31-15-21:/# apt-get update
Hit:1 http://security.ubuntu.com/ubuntu precise-security InRelease
Ign:2 http://archive.ubuntu.com/ubuntu precise InRelease
Ign:3 http://extras.ubuntu.com/ubuntu precise InRelease
Hit:4 http://archive.ubuntu.com/ubuntu precise Release
Hit:6 http://extras.ubuntu.com/ubuntu precise Release
Ign:7 http://archive.canonical.com/ubuntu precise InRelease
Get:8 http://extras.ubuntu.com/ubuntu precise Release.gpg [72 B]
Ign:8 http://extras.ubuntu.com/ubuntu precise Release.gpg
Hit:9 http://archive.canonical.com/ubuntu precise Release
Ign:11 http://it.archive.ubuntu.com/ubuntu precise InRelease
Hit:12 http://it.archive.ubuntu.com/ubuntu precise-updates InRelease
Hit:13 http://it.archive.ubuntu.com/ubuntu precise Release
Fetched 72 B in 2s (25 B/s)
Reading package lists... Done
W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:6
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:6
W: Target Translations (main/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:6
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:6
W: Target Packages (restricted/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:6
W: Target Packages (restricted/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:6
W: Target Translations (restricted/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:6
W: Target Translations (restricted/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:6
W: http://security.ubuntu.com/ubuntu/dists/precise-security/InRelease: Signature by key 630239CC130E1A7FD81A27B140976EAF437D05B5 uses weak digest algorithm (SHA1)
W: http://archive.ubuntu.com/ubuntu/dists/precise/Release.gpg: Signature by key 630239CC130E1A7FD81A27B140976EAF437D05B5 uses weak digest algorithm (SHA1)
W: GPG error: http://extras.ubuntu.com/ubuntu precise Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 16126D3A3E5C1192
W: The repository 'http://extras.ubuntu.com/ubuntu precise Release' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: http://archive.canonical.com/ubuntu/dists/precise/Release.gpg: Signature by key 630239CC130E1A7FD81A27B140976EAF437D05B5 uses weak digest algorithm (SHA1)
W: http://it.archive.ubuntu.com/ubuntu/dists/precise-updates/InRelease: Signature by key 630239CC130E1A7FD81A27B140976EAF437D05B5 uses weak digest algorithm (SHA1)
W: http://it.archive.ubuntu.com/ubuntu/dists/precise/Release.gpg: Signature by key 630239CC130E1A7FD81A27B140976EAF437D05B5 uses weak digest algorithm (SHA1)
W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:6
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:6
W: Target Translations (main/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:6
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:6
W: Target Packages (restricted/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:6
W: Target Packages (restricted/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:6
W: Target Translations (restricted/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:6
W: Target Translations (restricted/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:6

そして私のソースリスト