oracle 启动 cent os

启动 oracle ：lsnrctl start

在cent os系统中安装oracle 成功以后，重起电脑后。登陆oracle会出现

ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Linux-x86_64 Error: 2: No such file or directory

这种错误

具体解决方法是

sqlplus /nolog;

conn sys/password as sysdba;

startup ;

出现

ORACLE instance started.

Total System Global Area  768294912 bytes
Fixed Size            2217304 bytes
Variable Size          528485032 bytes
Database Buffers      230686720 bytes
Redo Buffers            6905856 bytes
Database mounted.
Database opened.

之后再次登录就会正常了。