前兩天在虛擬機上裝的11g，啓動的時候突然報
SQL> startup
ORA-00845: MEMORY_TARGET not supported on this system
matelink上的解釋是：
This feature requires the /dev/shm file system to be mounted for at least %llu bytes.
/dev/shm is either not mounted or is mounted with available space less than this size.
可以通過下面的方法修改/dev/shm
[root@server ~]# df -k /dev/shm
Filesystem 1K-blocks Used Available Use% Mounted on
tmpfs 359816 0 359816 0% /dev/shm
[root@server ~]# vi /etc/fstab
#tmpfs /dev/shm tmpfs defaults 0 0
/dev/VolGroup00/LogVol00 / ext3 defaults 1 1
LABEL=/boot /boot ext3 defaults 1 2
devpts /dev/pts devpts gid=5,mode=620 0 0
#tmpfs /dev/shm tmpfs defaults 0 0
tmpfs /dev/shm tmpfs defaults,size=1024m 0 0
proc /proc proc defaults 0 0
sysfs /sys sysfs defaults 0 0
/dev/VolGroup00/LogVol01 swap swap defaults 0 0
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"/etc/fstab" 8L, 622C written
[root@server ~]# umount /dev/shm
[root@server ~]# mount /dev/shm
[root@server ~]# df -k /dev/shm
Filesystem 1K-blocks Used Available Use% Mounted on
tmpfs 1048576 0 1048576 0% /dev/shm
再啓動數據庫
$ sqlplus '/as sysdba'
SQL*Plus: Release 11.1.0.6.0 - Production on Fri Sep 5 06:43:32 2008
Copyright (c) 1982, 2007, Oracle. All rights reserved.
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Total System Global Area 393375744 bytes
Fixed Size 1300156 bytes
Variable Size 327158084 bytes
Database Buffers 58720256 bytes
Redo Buffers 6197248 bytes
Database mounted.
Database opened.
SQL>
