How can I use the same sleepimage over and over?

Hi, this was asked a while ago for Tiger, but had no real answer. Now I hope things have changed in Leopard 10.5.4.
I have a STATIC system on a car that should boot over and over in exactly the same way. The idea is to make a good sleepimage (/var/vm/sleepimage) and then force the computer to read it at every startup AS IF it was waking up from sleep mode all the times.
This MUST be possible because OSX does it every time it wakes up from safesleep (sudo pmset hibernatemode 1). All I need it to find out WHERE OSX writes down that at the next wake it should use the sleepimage instead of a normal boot. Then, once I know where it write this, I simply force that flag to be active all the times.
Please also be aware of the following notes and constraints:
0. The boot should be as fast as possible
1. I can't to use the regular sleep function: the system must drain zero power while shut down
2. There are no dangers in using the same sleepimage multiple times: the disk contents do not change. The system should be absolutely identical at every boot (or "wake")
3. The system is ALWAYS shut down by pulling the plug of the MacMini. Thereshould be no possibility for the system to "update" the sleepimage
I hope some of you OSX experts will give me a hint concerning where this information is stored (and maybe how to override it)
thanks a lot
Lele
Message was edited by: Leelx

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try this /* untested */
DECLARE
sid           NUMBER;
pid           NUMBER;
CURSOR csid IS SELECT DISTINCT(site_id) FROM cyber_ppt;
CURSOR cpid(nSid NUMBER) is SELECT pc_id,st_dt,ed_dt FROM cyber_ppt WHERE site_id = nSid;
stdt        VARCHAR2(10);
eddt        VARCHAR2(10);
nom         NUMBER;
stmonth     VARCHAR2(10);
edmonth     VARCHAR2(10);
cjan         NUMBER:=0;
cfeb         NUMBER:=0;
cmar         NUMBER:=0;
capr         NUMBER:=0;
cmay         NUMBER:=0;
cjun         NUMBER:=0;
cjul         NUMBER:=0;
caug         NUMBER:=0;
csep         NUMBER:=0;
coct         NUMBER:=0;
cnov         NUMBER:=0;
cdec         NUMBER:=0;
i            NUMBER:=1;
BEGIN
FOR rec IN csid
LOOP
                  sid := rec.csid;
FOR cRec IN cpid(sid)
LOOP
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END LOOP;
END LOOP;
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Attachments:
Graph and shift registers.vi ‏12 KB
graph and local variables.vi ‏12 KB

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