SQL> startup
ORA-27154: post/wait create failed
ORA-27300: OS system dependent operation:semget failed with status: 28
ORA-27301: OS failure message: No space left on device
ORA-27302: failure occurred at: sskgpcreates

ORA-2715：
ORA-27154: post/wait create failed
Cause: internal error, multiple post/wait creates attempted simultaneously
Action: check errno and contact Oracle Support

解决方法：
调整/etc/sysctl.conf，修改kernel.sem为

kernel.sem =5010 641280 5010 128
sysctl -p

生效，然后在启动即可，一般是该参数和安装oracle时不一致引起的·

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