when using pc emulator,the Permission  of  /data/app as fellow: (so I
can install apk files successfuly)

 ls -l
-rwxrwxrwx root     root      1745016 2009-02-23 03:05 busybox
drwxrwx--x system   system            2008-12-22 07:37 location

drwxrwx--x system   system            2008-12-22 07:37 app

drwxrwx--t system   misc              2009-02-25 01:20 misc
drwxrwx--x shell    shell             2009-02-25 01:20 local
drwxrwx--x system   system            2009-02-25 01:20 data
drwxrwx--x system   system            2009-02-25 01:20 app-private
drwx------ root     root              2009-02-25 01:20 property
drwxrwx--x system   system            2009-02-25 01:20 dalvik-cache
drwxrwxrwx system   system            2009-02-25 01:21 anr
drwxrwxr-x system   system            2009-02-25 01:21 system
drwxrwx--- root     root              2009-02-25 01:20 lost+found

but, on a Development board, ,the Permission  of  /data/app as fellow:
(so I can't install any apk files in /data/app )

# ls -l
drwxrwxr-x system   system            2000-01-01 00:03 system
drwxrwxrwx system   system            2000-01-01 00:03 anr
drwxrwx--x system   system            2000-01-01 00:02 dalvik-cache
drwxrwx--x wifi     system            2000-01-01 00:02 wlan0
drwx------ root     root              2000-01-01 00:02 property
drwxrwx--x system   system            2000-01-01 00:02 app-private
drwxrwx--x system   system            2000-01-01 00:02 data
drwxrwx--x shell    shell             2000-01-01 00:02 local
drwxrwx--t system   misc              2000-01-01 00:02 misc

drwxr-xr-x graphics graphics          2009-02-20 13:38 app

drwxrwx--- root     root              2000-01-01 00:02 lost+found


Is any one can tell me that why the  Permission  changed .

because the /data/app ‘s owner and group are "graphics ", so I can't
install any
apk in the foolder /data/app.



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