mysql5.7与mysql5.5不兼容

因最新需要升级数据库版本,计划将数据库版本从5.5版本升级至5.7,所以想支持这2个版本不兼容的地方都有哪些,望大家告知,感谢

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Need to get 21.0 MB of archives. After this operation, 157 MB of additional disk space will be used. Get:1 http://mirrors.aliyun.com/ubuntu bionic/main amd64 mysql-common all 5.8+1.0.4 [7308 B] Get:2 http://mirrors.aliyun.com/ubuntu bionic-updates/main amd64 libaio1 amd64 0.3.110-5ubuntu0.1 [6476 B] Get:3 http://mirrors.aliyun.com/ubuntu bionic-security/main amd64 libssl1.1 amd64 1.1.1-1ubuntu2.1~18.04.5 [1300 kB] Get:4 http://mirrors.aliyun.com/ubuntu bionic-security/main amd64 mysql-client-core-5.7 amd64 5.7.28-0ubuntu0.18.04.4 [6644 kB] Get:5 http://mirrors.aliyun.com/ubuntu bionic-security/main amd64 mysql-client-5.7 amd64 5.7.28-0ubuntu0.18.04.4 [1943 kB] Get:6 http://mirrors.aliyun.com/ubuntu bionic-security/main amd64 mysql-server-core-5.7 amd64 5.7.28-0ubuntu0.18.04.4 [7432 kB] Get:7 http://mirrors.aliyun.com/ubuntu bionic/main amd64 libevent-core-2.1-6 amd64 2.1.8-stable-4build1 [85.9 kB] Get:8 http://mirrors.aliyun.com/ubuntu bionic-security/main amd64 mysql-server-5.7 amd64 5.7.28-0ubuntu0.18.04.4 [2932 kB] Get:9 http://mirrors.aliyun.com/ubuntu bionic/main amd64 libhtml-tagset-perl all 3.20-3 [12.1 kB] Get:10 http://mirrors.aliyun.com/ubuntu bionic/main amd64 liburi-perl all 1.73-1 [77.2 kB] Get:11 http://mirrors.aliyun.com/ubuntu bionic/main amd64 libhtml-parser-perl amd64 3.72-3build1 [85.9 kB] Get:12 http://mirrors.aliyun.com/ubuntu bionic/main amd64 libcgi-pm-perl all 4.38-1 [185 kB] Get:13 http://mirrors.aliyun.com/ubuntu bionic/main amd64 libfcgi-perl amd64 0.78-2build1 [32.8 kB] Get:14 http://mirrors.aliyun.com/ubuntu bionic/main amd64 libcgi-fast-perl all 1:2.13-1 [9940 B] Get:15 http://mirrors.aliyun.com/ubuntu bionic/main amd64 libencode-locale-perl all 1.05-1 [12.3 kB] Get:16 http://mirrors.aliyun.com/ubuntu bionic/main amd64 libhtml-template-perl all 2.97-1 [59.0 kB] Get:17 http://mirrors.aliyun.com/ubuntu bionic/main amd64 libtimedate-perl all 2.3000-2 [37.5 kB] Get:18 http://mirrors.aliyun.com/ubuntu bionic/main amd64 libhttp-date-perl all 6.02-1 [10.4 kB] Get:19 http://mirrors.aliyun.com/ubuntu bionic/main amd64 libio-html-perl all 1.001-1 [14.9 kB] Get:20 http://mirrors.aliyun.com/ubuntu bionic/main amd64 liblwp-mediatypes-perl all 6.02-1 [21.7 kB] Get:21 http://mirrors.aliyun.com/ubuntu bionic/main amd64 libhttp-message-perl all 6.14-1 [72.1 kB] Get:22 http://mirrors.aliyun.com/ubuntu bionic-security/main amd64 mysql-server all 5.7.28-0ubuntu0.18.04.4 [9940 B] Fetched 21.0 MB in 9s (2376 kB/s) Preconfiguring packages ... Selecting previously unselected package mysql-common. (Reading database ... 28663 files and directories currently installed.) Preparing to unpack .../0-mysql-common_5.8+1.0.4_all.deb ... Unpacking mysql-common (5.8+1.0.4) ... Selecting previously unselected package libaio1:amd64. Preparing to unpack .../1-libaio1_0.3.110-5ubuntu0.1_amd64.deb ... Unpacking libaio1:amd64 (0.3.110-5ubuntu0.1) ... Preparing to unpack .../2-libssl1.1_1.1.1-1ubuntu2.1~18.04.5_amd64.deb ... Unpacking libssl1.1:amd64 (1.1.1-1ubuntu2.1~18.04.5) over (1.1.0g-2ubuntu4.3) ... Selecting previously unselected package mysql-client-core-5.7. Preparing to unpack .../3-mysql-client-core-5.7_5.7.28-0ubuntu0.18.04.4_amd64.deb ... Unpacking mysql-client-core-5.7 (5.7.28-0ubuntu0.18.04.4) ... Selecting previously unselected package mysql-client-5.7. Preparing to unpack .../4-mysql-client-5.7_5.7.28-0ubuntu0.18.04.4_amd64.deb ... Unpacking mysql-client-5.7 (5.7.28-0ubuntu0.18.04.4) ... Selecting previously unselected package mysql-server-core-5.7. Preparing to unpack .../5-mysql-server-core-5.7_5.7.28-0ubuntu0.18.04.4_amd64.deb ... Unpacking mysql-server-core-5.7 (5.7.28-0ubuntu0.18.04.4) ... Selecting previously unselected package libevent-core-2.1-6:amd64. Preparing to unpack .../6-libevent-core-2.1-6_2.1.8-stable-4build1_amd64.deb ... Unpacking libevent-core-2.1-6:amd64 (2.1.8-stable-4build1) ... Setting up mysql-common (5.8+1.0.4) ... update-alternatives: using /etc/mysql/my.cnf.fallback to provide /etc/mysql/my.cnf (my.cnf) in auto mode Selecting previously unselected package mysql-server-5.7. (Reading database ... 28832 files and directories currently installed.) Preparing to unpack .../00-mysql-server-5.7_5.7.28-0ubuntu0.18.04.4_amd64.deb ... Unpacking mysql-server-5.7 (5.7.28-0ubuntu0.18.04.4) ... Selecting previously unselected package libhtml-tagset-perl. Preparing to unpack .../01-libhtml-tagset-perl_3.20-3_all.deb ... Unpacking libhtml-tagset-perl (3.20-3) ... Selecting previously unselected package liburi-perl. Preparing to unpack .../02-liburi-perl_1.73-1_all.deb ... Unpacking liburi-perl (1.73-1) ... Selecting previously unselected package libhtml-parser-perl. Preparing to unpack .../03-libhtml-parser-perl_3.72-3build1_amd64.deb ... Unpacking libhtml-parser-perl (3.72-3build1) ... Selecting previously unselected package libcgi-pm-perl. Preparing to unpack .../04-libcgi-pm-perl_4.38-1_all.deb ... Unpacking libcgi-pm-perl (4.38-1) ... Selecting previously unselected package libfcgi-perl. Preparing to unpack .../05-libfcgi-perl_0.78-2build1_amd64.deb ... Unpacking libfcgi-perl (0.78-2build1) ... Selecting previously unselected package libcgi-fast-perl. Preparing to unpack .../06-libcgi-fast-perl_1%3a2.13-1_all.deb ... Unpacking libcgi-fast-perl (1:2.13-1) ... Selecting previously unselected package libencode-locale-perl. Preparing to unpack .../07-libencode-locale-perl_1.05-1_all.deb ... Unpacking libencode-locale-perl (1.05-1) ... Selecting previously unselected package libhtml-template-perl. Preparing to unpack .../08-libhtml-template-perl_2.97-1_all.deb ... Unpacking libhtml-template-perl (2.97-1) ... Selecting previously unselected package libtimedate-perl. Preparing to unpack .../09-libtimedate-perl_2.3000-2_all.deb ... Unpacking libtimedate-perl (2.3000-2) ... Selecting previously unselected package libhttp-date-perl. Preparing to unpack .../10-libhttp-date-perl_6.02-1_all.deb ... Unpacking libhttp-date-perl (6.02-1) ... Selecting previously unselected package libio-html-perl. Preparing to unpack .../11-libio-html-perl_1.001-1_all.deb ... Unpacking libio-html-perl (1.001-1) ... Selecting previously unselected package liblwp-mediatypes-perl. Preparing to unpack .../12-liblwp-mediatypes-perl_6.02-1_all.deb ... Unpacking liblwp-mediatypes-perl (6.02-1) ... Selecting previously unselected package libhttp-message-perl. Preparing to unpack .../13-libhttp-message-perl_6.14-1_all.deb ... Unpacking libhttp-message-perl (6.14-1) ... Selecting previously unselected package mysql-server. Preparing to unpack .../14-mysql-server_5.7.28-0ubuntu0.18.04.4_all.deb ... Unpacking mysql-server (5.7.28-0ubuntu0.18.04.4) ... Setting up libhtml-tagset-perl (3.20-3) ... Setting up libevent-core-2.1-6:amd64 (2.1.8-stable-4build1) ... Processing triggers for ureadahead (0.100.0-21) ... Setting up libencode-locale-perl (1.05-1) ... Setting up libtimedate-perl (2.3000-2) ... Setting up libio-html-perl (1.001-1) ... Setting up liblwp-mediatypes-perl (6.02-1) ... Processing triggers for libc-bin (2.27-3ubuntu1) ... Setting up libaio1:amd64 (0.3.110-5ubuntu0.1) ... Setting up liburi-perl (1.73-1) ... Setting up libssl1.1:amd64 (1.1.1-1ubuntu2.1~18.04.5) ... Checking for services that may need to be restarted...done. Checking for services that may need to be restarted...done. Checking init scripts... Restarting services possibly affected by the upgrade: invoke-rc.d: could not determine current runlevel Services restarted successfully. Processing triggers for systemd (237-3ubuntu10.21) ... Setting up libhtml-parser-perl (3.72-3build1) ... Setting up libcgi-pm-perl (4.38-1) ... Processing triggers for man-db (2.8.3-2ubuntu0.1) ... Setting up mysql-client-core-5.7 (5.7.28-0ubuntu0.18.04.4) ... Setting up libfcgi-perl (0.78-2build1) ... Setting up libhttp-date-perl (6.02-1) ... Setting up libhtml-template-perl (2.97-1) ... Setting up mysql-server-core-5.7 (5.7.28-0ubuntu0.18.04.4) ... Setting up libcgi-fast-perl (1:2.13-1) ... Setting up libhttp-message-perl (6.14-1) ... Setting up mysql-client-5.7 (5.7.28-0ubuntu0.18.04.4) ... Setting up mysql-server-5.7 (5.7.28-0ubuntu0.18.04.4) ... invoke-rc.d: could not determine current runlevel * Stopping MySQL database server mysqld [ OK ] update-alternatives: using /etc/mysql/mysql.cnf to provide /etc/mysql/my.cnf (my.cnf) in auto mode Renaming removed key_buffer and myisam-recover options (if present) Cannot open /proc/net/unix: No such file or directory Cannot stat file /proc/1/fd/5: Operation not permitted Cannot stat file /proc/1/fd/10: Operation not permitted Cannot stat file /proc/1/fd/6: Operation not permitted Cannot stat file /proc/7/fd/7: Operation not permitted Cannot stat file /proc/7/fd/10: Operation not permitted Cannot stat file /proc/7/fd/5: Operation not permitted Created symlink /etc/systemd/system/multi-user.target.wants/mysql.service → /lib/systemd/system/mysql.service. invoke-rc.d: could not determine current runlevel Setting up mysql-server (5.7.28-0ubuntu0.18.04.4) ... Processing triggers for libc-bin (2.27-3ubuntu1) ... Processing triggers for ureadahead (0.100.0-21) ... Processing triggers for systemd (237-3ubuntu10.21) ... ``` 2.启动mysql服务 ``` root@PC-5200:/home/tom# systemctl start mysql.service ``` 3.出现如下报错 ``` System has not been booted with systemd as init system (PID 1). Can't operate. ```
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