Welcome guest. Before posting on our computer help forum, you must register. Click here it's easy and free.

Author Topic: Is possible to perform boot by command?  (Read 2860 times)

0 Members and 1 Guest are viewing this topic.

MIRKOSOFT

    Topic Starter


    Hopeful

    Thanked: 2
    Is possible to perform boot by command?
    « on: July 06, 2018, 02:21:25 PM »
    Hi!

    I have two diskettes which I want to boot from.
    Installed is MS-DOS 6.22, diskette 1 is MS-DOS 7.10 Super Boot Disk and diskette 2 is CP/M86 1.1.

    In case of MSD7.10 is possible to start AUTOEXEC.BAT - but after starting it outputs incorrect DOS version.
    In case of CP/M is not possible to do anything 'cause CP/M uses other filesystem.
    Both disks have boot-sector written.

    My wish is to perform boot from floppy by command - without true reboot.
    Is it by any way possible?

    Thank you for patience.
    Miro

    MIRKOSOFT

      Topic Starter


      Hopeful

      Thanked: 2
      Re: Is possible to perform boot by command?
      « Reply #1 on: July 06, 2018, 07:26:13 PM »
      I was searching the web and found nothing correct.
      Simple example of my Q is in retrocomputing - my hobby:

      Commodore 128 came with new BASIC 7.0 with new command: BOOT
      At power on or reset it searches for boot sector on diskette.
      This process is possible to call by two ways:
      1. Call boot procedure in ROM
      2. use BOOT comand, even with options:
      BOOT, drive, unit
      - drive is for dual floppies (0 or 1)
      - unit is number of floppy unit in filesystem (8-30 > similar or DOS/WIN A--Z)

      Something similar I need to find.
      Miro

      BC_Programmer


        Mastermind
      • Typing is no substitute for thinking.
      • Thanked: 1140
        • Yes
        • Yes
        • BC-Programming.com
      • Certifications: List
      • Computer: Specs
      • Experience: Beginner
      • OS: Windows 11
      Re: Is possible to perform boot by command?
      « Reply #2 on: July 06, 2018, 07:59:48 PM »
      I'm not aware of any method by which this would be possible with MS-DOS. There are programs that can reboot but they do effectively the same thing as Control-Alt-Delete.
      I was trying to dereference Null Pointers before it was cool.