ORA-27123: unable to attach to shared memory segment
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今天在安装一个oracle10g的数据库，使用dbca的slient方式来安装，但是在日志中报这个错误
ORA-27123: unable to attach to shared memory segment
看到这个就知道是跟系统参数mmax有关，查看kernel.shmmax = 4294967295--4g，但是系统版本是32位的
[root@localhost install]# uname -a
Linux localhost.localdomain 2.6.18-8.el5PAE #1 SMP Fri Jan 26 14:28:43 EST 2007 i686 i686 i386 GNU/Linux
在32位先超过1.7g的sga oracle是不认的，
解决方法是：1、该小kernel.shmmax
2、http://www.eygle.com/archives/2005/11/oracle_howto_make_sga_17g.html-重编译oracle
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