10201启动时候报ORA-27125

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[ora10g@oracle ~]$ sqlplus / as sysdba
SQL*Plus: Release 10.2.0.1.0 - Production on Thu Feb 26 18:46:02 2015
Copyright (c) 1982, 2005, Oracle.  All rights reserved.
Connected to an idle instance.
SQL> 
SQL> 
SQL> startup
ORA-27125: unable to create shared memory segment
Linux-x86_64 Error: 1: Operation not permitted

解决办法

[root@oracle ~]# more /proc/sys/vm/hugetlb_shm_group 
0
[root@oracle ~]# echo 502 >/proc/sys/vm/hugetlb_shm_group
[root@oracle ~]# more /proc/sys/vm/hugetlb_shm_group 
502
[root@oracle ~]# su - ora10g
[ora10g@oracle ~]$ 
[ora10g@oracle ~]$ 
[ora10g@oracle ~]$ 
[ora10g@oracle ~]$ sqlplus / as sysdba
SQL*Plus: Release 10.2.0.1.0 - Production on Thu Feb 26 18:52:21 2015
Copyright (c) 1982, 2005, Oracle.  All rights reserved.
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Total System Global Area  595591168 bytes
Fixed Size                  2022600 bytes
Variable Size             167772984 bytes
Database Buffers          423624704 bytes
Redo Buffers                2170880 bytes
Database mounted.
Database opened.

参考：
Oracle 10g ORA-27125:unable to create shared memory segment 解决方法

10201启动时候报ORA-27125

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原文地址：http://www.cnblogs.com/haoxiaoyu/p/07137d973704c5813476b0c034214e1a.html