eretherf@mcs.kent.edu (Eric Von Retherford) (06/03/91)
Hello,
I am in need of a program that will reboot my machine via a dos command.
Is there one that is avail ftp? Is it so small that someone can send me
the source?
Thanks for your help
Eric Von Retherford
Please reply by E-mail.raymond@math.berkeley.edu (Raymond Chen) (06/04/91)
A quick search of the SIMTEL20 index (searching for the word `reboot') yields Directory PD1:<MSDOS.C> REBOOT.C A 995 900218 How to do a warm or cold boot in 'C' language Directory PD1:<MSDOS.SYSUTL> REBOOT.ARC B 5394 880214 Forces system reset TMBOOTV2.ARC B 10358 891210 Reboots computer at a specified time This output was extracted from the email you would have received by sending the message `lookup /reboot/i' to the comp.sys.ibm.pc.misc server at rjc@math.princeton.edu; please consult the monthly Frequently Asked Questions file (coming soon) for instructions. Note also that the topic of software-induced reboots is discussed in question 2.3 of the Frequently Asked Questions file.
ralphs@seattleu.edu (Ralph Sims) (06/04/91)
eretherf@mcs.kent.edu (Eric Von Retherford) writes: > I am in need of a program that will reboot my machine via a dos command. Would a statement in a batch file work? Or, make a batch file containing: echo g=ffff:0 |debug >nul Give it a try. -- The 23:00 News and Mail Service - +1 206 292 9048 - Seattle, WA USA PEP, V.32, V.42 +++ A Waffle Iron, Model 1.64 +++
rickc@agora.rain.com (Rick Coates) (06/04/91)
In article <Zu0y33w164w@halcyon.uucp> halcyon!ralphs@seattleu.edu (Ralph Sims) writes: >eretherf@mcs.kent.edu (Eric Von Retherford) writes: > > >> I am in need of a program that will reboot my machine via a dos command. > >Would a statement in a batch file work? Or, make a batch file containing: > >echo g=ffff:0 |debug >nul > >Give it a try. >-- > The 23:00 News and Mail Service - +1 206 292 9048 - Seattle, WA USA > PEP, V.32, V.42 > +++ A Waffle Iron, Model 1.64 +++ This works, but it does a cold boot (reset). Does anyone out there know the magic to cause a warm boot? It's the same thing, except if a certain memory location has the right contents, the memory test, etc. is bypassed. This bit of PC lore was on the net once, but I managed to lose it. Many thanks in advance, Rick Coates rickc@agora.rain.com ...!tektronix!tessi!agora!rickc Contract HW/SW engineer (Graphics - Sun - ASIC design - imbedded systems)
ts@uwasa.fi (Timo Salmi) (06/04/91)
In article <1991Jun3.155821.10694@mcs.kent.edu> eretherf@mcs.kent.edu (Eric Von Retherford) writes: : > I am in need of a program that will reboot my machine via a dos command. > Is there one that is avail ftp? Is it so small that someone can send me /pc/ts/tsutld18.arc ................................................................... Prof. Timo Salmi Moderating at garbo.uwasa.fi anonymous ftp archives 128.214.12.37 School of Business Studies, University of Vaasa, SF-65101, Finland Internet: ts@chyde.uwasa.fi Funet: gado::salmi Bitnet: salmi@finfun
valley@gsbsun.uchicago.edu (Doug Dougherty) (06/04/91)
rickc@agora.rain.com (Rick Coates) writes (in regard to ways of causing a jump to FFFF:0) : >This works, but it does a cold boot (reset). Does anyone out there know >the magic to cause a warm boot? It's the same thing, except if a certain >memory location has the right contents, the memory test, etc. is bypassed. >This bit of PC lore was on the net once, but I managed to lose it. You (Rick) should probably follow up on the various utility packages that people have suggested, since they contain the answers to these and many many more questions. However, for a warm boot, I favor the following implementation: pop ds mov word [472],1234 jmp ffff:0 -- (Another fine mess brought to you by valley@gsbsun.uchicago.edu)
iisakkil@vipunen.hut.fi (Mika R Iisakkila) (06/05/91)
rickc@agora.rain.com (Rick Coates) writes: > This works, but it does a cold boot (reset). Does anyone out there know > the magic to cause a warm boot? It's the same thing, except if a certain Here's a small Turbo C program I wrote a long time ago. No assembler. #include <dos.h> #include <string.h> #include <stdio.h> void far (*boot)() = MK_FP(0xffff,0x0000); void usage(void) { puts("Usage: boot [/c] [/w]"); puts("Options: /c cold boot"); puts(" /w warm boot (default)"); exit(1); } main(int argc, char **argv) { char coldboot = 0; while(argc > 1) { switch(*argv[1]) { case '/': case '-': switch(argv[1][1]) { case 'c': case 'C': coldboot = 1; break; case 'w': case 'W': coldboot = 0; break; default: usage(); } break; default: usage(); } argc--; argv++; } *((unsigned int far *)(MK_FP(0x0040, 0x0072))) = coldboot ? 0 : 0x1234; boot(); }
campbell@cutmcvax.cs.curtin.edu.au (Trevor George Campbell CC361) (06/07/91)
valley@gsbsun.uchicago.edu (Doug Dougherty) writes: >rickc@agora.rain.com (Rick Coates) writes > (in regard to ways of causing a jump to FFFF:0) : >>This works, but it does a cold boot (reset). Does anyone out there know >>the magic to cause a warm boot? It's the same thing, except if a certain >>memory location has the right contents, the memory test, etc. is bypassed. >>This bit of PC lore was on the net once, but I managed to lose it. >You (Rick) should probably follow up on the various utility packages > pop ds > mov word [472],1234 > jmp ffff:0 >-- > (Another fine mess brought to you by valley@gsbsun.uchicago.edu) Don't you think you have left out some code (ie: what the hell is pop ds going to achieve ?????) and the memory location that you wish the MAGIC NUMBER 1234 to go into is Seg:Off of 40:72 ( both in hex ) and [472] is not the same without ds being set to 0000 first ....... -- Trevor alias <**<TOMCAT>**> tuo em tel esaelP ,lanimret siht edisni kcuts m`I pleH ( for all of you out there who can't read backwards..... Help i'm stuck inside this terminal, Please let me out )
raymond@math.berkeley.edu (Raymond Chen) (06/07/91)
In article <campbell.676287660@cutmcvax>, campbell@cutmcvax (Trevor George Campbell CC361) writes: >Don't you think you have left out some code (ie: what the hell is pop ds going >to achieve ?????) Tee hee. POP DS sets DS=0. Try to figure out why.
valley@gsbsun.uchicago.edu (Doug Dougherty) (06/08/91)
raymond@math.berkeley.edu (Raymond Chen) writes: >In article <campbell.676287660@cutmcvax>, campbell@cutmcvax (Trevor George Campbell CC361) writes: >>Don't you think you have left out some code (ie: what the hell is pop ds going >>to achieve ?????) >Tee hee. POP DS sets DS=0. Try to figure out why. Heh heh heh. The jaws of the newuser trap are open wide... -- (Another fine mess brought to you by valley@gsbsun.uchicago.edu)