plz help me

hi

I have installed the cygwin and cyqIPC softwares. now
i want to Initialize the Database, but it becomes
fails, please help me, what should i do.
I have paste my command and its result:
please read it and tell me, what should i do.

$ initdb -D /usr/share/postgresql/data
The files belonging to this database system will be
owned by user "Administrator".
This user must also own the server process.

The database cluster will be initialized with locale
C.

creating directory /usr/share/postgresql/data... ok
creating directory /usr/share/postgresql/data/base...
ok
creating directory
/usr/share/postgresql/data/global... ok
creating directory
/usr/share/postgresql/data/pg_xlog... ok
creating directory
/usr/share/postgresql/data/pg_clog... ok
selecting default max_connections... 10
selecting default shared_buffers... 50
creating configuration files... ok
creating template1 database in
/usr/share/postgresql/data/base/1... FATAL: coul
$
DETAIL: Failed system call was shmget(key=1,
size=1081344, 03600).

initdb: failed
initdb: removing data directory
"/usr/share/postgresql/data"

Administrator(at)szabist-ovkl1tv ~
$

thanks
Irfan Afzal

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