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Re: Problem with NON-STANDARD install

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Pascal Hambourg composed on 2016-08-06 23:59 (UTC+0200):

> Felix Miata:

>> Pascal Hambourg composed on 2016-08-06 12:01 (UTC+0200):

I misread what you wrote. If I knew how to edit or delete a list posting as 
is typically possible in forums, I would. It shouldn't have been written, 
much less sent. :-(

>> ...
>>> If the boot image is in a PBR, the BIOS won't load it directly

>> It will if the PBR is on a primary partition on the same disk.

> On the same disk as what ?

> Do you mean that the BIOS can load directly the boot sector of a primary
> partition instead of the MBR ?

>> It's how
>> all my systems boot if I'm not using IBM Boot Manager as the primary
>> bootloader.

> What do you call "IBM Boot Manager" ? Is it the boot manager used by
> OS/2, or the generic/legacy boot code in the MBR used by MSDOS and
> Windows, which loads the PBR of the primary partition with the boot flag ?

> Also, what does your MBR contains ? Only the partition table, no boot
> code at all ?

> After reading your reply I made a quick test on three different PCs.
> I installed a generic MBR boot code on a USB stick and checked that it
> could boot on each PC and load the PBR of the primary partition with the
> boot flag.
> Then I erased the boot code (first 440 bytes in the MBR) with zeroes and
> observed that the boot hanged on all my test PCs, so I concluded that
> the BIOS still tried to load and execute the MBR because of the boot
> signature at the end of the MBR. Then I also removed the boot signature
> in the MBR and observed that the BIOS said the device was not bootable,
> as expected.
-- 
"The wise are known for their understanding, and pleasant
words are persuasive." Proverbs 16:21 (New Living Translation)

  Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata  ***  http://fm.no-ip.com/

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Thread

Problem with NON-STANDARD install Richard Owlett <rowlett@cloud85.net> - 2016-08-01 17:40 +0200
  Re: Problem with NON-STANDARD install David Wright <deblis@lionunicorn.co.uk> - 2016-08-01 19:10 +0200
    Re: Problem with NON-STANDARD install Richard Owlett <rowlett@cloud85.net> - 2016-08-01 20:10 +0200
      Re: Problem with NON-STANDARD install David Wright <deblis@lionunicorn.co.uk> - 2016-08-01 21:00 +0200
      Re: Problem with NON-STANDARD install Joe <joe@jretrading.com> - 2016-08-01 21:20 +0200
        Re: Problem with NON-STANDARD install Richard Owlett <rowlett@cloud85.net> - 2016-08-01 22:30 +0200
        Re: Problem with NON-STANDARD install Felix Miata <mrmazda@earthlink.net> - 2016-08-02 03:10 +0200
        Re: Problem with NON-STANDARD install Pascal Hambourg <pascal@plouf.fr.eu.org> - 2016-08-06 12:10 +0200
        Re: Problem with NON-STANDARD install Pascal Hambourg <pascal@plouf.fr.eu.org> - 2016-08-06 12:10 +0200
          Re: Problem with NON-STANDARD install Richard Owlett <rowlett@cloud85.net> - 2016-08-06 15:10 +0200
          Re: Problem with NON-STANDARD install Felix Miata <mrmazda@earthlink.net> - 2016-08-06 16:20 +0200
            Re: Problem with NON-STANDARD install Pascal Hambourg <pascal@plouf.fr.eu.org> - 2016-08-07 00:00 +0200
              Re: Problem with NON-STANDARD install Felix Miata <mrmazda@earthlink.net> - 2016-08-07 00:20 +0200
            Re: Problem with NON-STANDARD install Pascal Hambourg <pascal@plouf.fr.eu.org> - 2016-08-07 11:50 +0200
  Re: Problem with NON-STANDARD install Brian Flaherty <bxf4@yahoo.com> - 2016-08-01 19:30 +0200
    Re: Problem with NON-STANDARD install Richard Owlett <rowlett@cloud85.net> - 2016-08-01 20:30 +0200
  Re: Problem with NON-STANDARD install Richard Owlett <rowlett@cloud85.net> - 2016-08-05 20:50 +0200
    Re: Problem with NON-STANDARD install David Wright <deblis@lionunicorn.co.uk> - 2016-08-05 22:10 +0200
      Re: Problem with NON-STANDARD install Richard Owlett <rowlett@cloud85.net> - 2016-08-05 23:10 +0200
      [PRIVATE REPLY} Re: Problem with NON-STANDARD install Richard Owlett <rowlett@cloud85.net> - 2016-08-05 23:20 +0200
    Re: Problem with NON-STANDARD install Richard Owlett <rowlett@cloud85.net> - 2016-09-02 15:40 +0200
      Re: Problem with NON-STANDARD install Felix Miata <mrmazda@earthlink.net> - 2016-09-03 06:30 +0200
        Re: Problem with NON-STANDARD install Lisi Reisz <lisi.reisz@gmail.com> - 2016-09-03 12:40 +0200
          Re: Problem with NON-STANDARD install Gene Heskett <gheskett@shentel.net> - 2016-09-03 13:00 +0200

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