求助：sybase启动问题

hdg11

一台HPML370，操作系统redhat enterprise linux4 update4，sybase版本为15.0.3，建立8个裸设备RAW1至RAW8。用chown命令/dev/raw/raw1...8文件改变文件属主为sybase，则sybase能正常启动。但每次机器重新开机时，/dev/raw/raw1....8几个文件的属主又变回root，致使sybase启动时出现如下错误：
00:00000:00001:2008/03/20 16:07:55.52 server  Error: 840, Severity: 17, State: 1
00:00000:00001:2008/03/20 16:07:55.52 server  Device 'posdev1' (with physical na
me '/dev/raw/raw1', and virtual device number 4) has not been correctly activate
d at startup time.  Please contact a user with System Administrator (SA) role.
00:00000:00001:2008/03/20 16:07:55.57 server  Unable to proceed with the recovery of dbid <4> because of previous errors.  Continuing with the next database.
请问有什么办法解决这个问题。谢谢！！