安装mysql报错

[Note] RSA private key file not found: /db/mysql5.6/data//private_key.pem. Some authentication plugins will not work.

[Note] RSA public key file not found: /db/mysql5.6/data//public_key.pem. Some authentication plugins will not work.

解决方法如下：

1.检查是否安装openssl

$rpm -qa openssl

openssl-1.0.0-20.el6_2.5.x86_64

2.利用openssl生成公有和私有key

$ openssl genrsa -out mykey.pem 1024

Generating RSA private key, 1024 bit long modulus..........++++++.++++++e is 65537 (0x10001)

$ openssl rsa -in mykey.pem -pubout -out mykey.pub

writing RSA key

3.修改key的权限

$ chmod 400 mykey.pem

$ chmod 444 mykey.pubchown mysql:mysql mykey.pemchown mysql:mysql mykey.pub

4.把公私有key的路径加入到my.cnf中

sha256_password_private_key_path=mykey.pem

sha256_password_public_key_path=mykey.pub如果key放在datadir目录下，直接写key名即可。否则要指定key的全路径

5.重启mysql

SHOW STATUS查看Rsa_public_key状态，如果不为空，则OK.

mysql> SHOW STATUS LIKE 'Rsa_public_key'G

*************************** 1. row ***************************Variable_name: Rsa_public_keyValue: -----BEGIN PUBLIC KEY-----MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDEALeNX9dY4EMlaDHCIYPBvFNNNJG2f6dtsyV/IG94TFsKtx/Xobiiz9ihBZSWvUhlfz6aVy9TbN68YEn58G5oOS3osxKZQvDF9XvjN0thDPwCgfIwTZgatqmrV/qGewCxQpQ03WHPx+GXQmM9iFSfM84FpZ8QtiI3m+fIUaOd/QIDAQAB-----END PUBLIC KEY-----1 row in set (0.00 sec)