SQL> startup
ORA-00845: MEMORY_TARGET not supported on this system
[oracle@host2 ~]$ df -h （查询磁盘空间占用情况）
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 35G 18G 16G 54% /
/dev/sda1 99M 22M 73M 23% /boot
tmpfs 995M 222M 773M 23% /dev/shm
/dev/sr0 3.6G 3.6G 0 100% /media/Oracle Linux Server dvd 20110119
解决方案：
[root@host2 ~]# mount -o remount,size=4G /dev/shm
(临时更改 /dev/shm 分区容量大小，使其兼容更多文件)
[oracle@host2 ~]$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 35G 18G 16G 54% /
/dev/sda1 99M 22M 73M 23% /boot
tmpfs 4.0G 429M 3.6G 11% /dev/shm
/dev/sr0 3.6G 3.6G 0 100% /media/Oracle Linux Server dvd 20110119