Linux Oracle 10g 安装问题集

 ORA-27101: shared memory realm does not exist

ERROR: 
ORA-01034: ORACLE not available 
ORA-27101: shared memory realm does not exist 
SVR4 Error: 2: No such file or directory 

Solution : 
You need to Manually startup the database 

check ORACLE_SID has value 

sqlplus "sys/password as sysdba" 
startup; 
Connected to an idle instance. 

SQL> start 
ORACLE instance started. 
SQL> exit 

$ export ORACLE_SID=ANOTHER_SID （此处重新设置一下oracle_sid）
$ sqlplus "sys/password as sysdba" 

SQL> startup;