Re: enumerating with Grub*

From	David Wright <deblis@lionunicorn.co.uk>
Newsgroups	linux.debian.user
Subject	Re: enumerating with Grub*
Date	2016-07-08 07:20 +0200
Message-ID	<rSwmK-oH-9@gated-at.bofh.it> (permalink)
References	(2 earlier) <rSnjs-2Pm-25@gated-at.bofh.it> <rSqhk-4FB-47@gated-at.bofh.it> <rSrwJ-5BS-1@gated-at.bofh.it> <rSssN-6bs-5@gated-at.bofh.it> <rSubf-79E-1@gated-at.bofh.it>
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On Thu 07 Jul 2016 at 22:52:57 (-0400), Felix Miata wrote:
> David Wright composed on 2016-07-07 20:03 (UTC-0500):
> 
> >On Thu 07 Jul 2016 at 20:03:46 (-0400), Felix Miata wrote:
> 
> >>Grub and Grub2 count drives starting with 0 (as a BIOS does).
> 
> >>Grub also counts partitions starting with 0.
> 
> >>Grub2 inexplicably counts partitions starting with 1.
> 
> >I'm afraid I can't go back further than 1996 with Debian (but that was
> >the first release, 1.1 or buzz). At that time, Debian counted
> >partitions from 1, as did lilo. The old Grub definitely stood out
> >in starting from 0, which is why they spelled it out so carefully
> >in the docs, eg:
> >https://www.gnu.org/software/grub/manual/legacy/Naming-convention.html#Naming-convention
> 
> >Now they have fallen into line, the Grub manual has to make sure you
> >realise it has been changed, eg
> >https://www.gnu.org/software/grub/manual/grub.html#Naming-convention
> 
> >The most modern fdisk program I have is gdisk (for GPT disks) and it
> >counts partitions from 1. Is there some newfangled disk subsystem
> >that's passed me by which starts counting at zero?
> 
> I'm not aware of any that are "newfangled", but all the SCSI hosts
> I'm familiar with do as does a PC BIOS, count starting with 0,
> usually making the host, the eighth possible device in a SCSI chain,
> ID7.

Yes, my first Debian systems all had 2GB SCSI disks, so I'm quite
familiar with that. But that's counting disks, not partitions.

What I'm trying to find out is why you wrote "Grub2 *inexplicably*
counts partitions starting with 1" (my emphasis) when everything
I've ever seen counts partitions from 1 (with the notable exception
of old Grub). I think they've been counted from 1 since their invention.

However, I've fallen behind in disk technology, still using PATA
disks except for caddies. Hence my question about newfangled devices.
Do any of those expect you to count their partitions from other than 1?
I'm just flailing around for a reason why old Grub might have done what
it did, because you haven't yet given one.

Cheers,
David.

Thread

reasons to ditch LILO before upgrading to jessie? Giovanni Gigante <giov-debian@deepsky.it> - 2016-07-05 15:40 +0200
  Re: reasons to ditch LILO before upgrading to jessie? Don Armstrong <don@debian.org> - 2016-07-05 19:20 +0200
    Re: reasons to ditch LILO before upgrading to jessie? Marc Shapiro <marcnshap@gmail.com> - 2016-07-05 21:00 +0200
      Re: reasons to ditch LILO before upgrading to jessie? Don Armstrong <don@debian.org> - 2016-07-05 23:50 +0200
        Re: reasons to ditch LILO before upgrading to jessie? Jonathan Dowland <jmtd@debian.org> - 2016-07-06 11:00 +0200
          Re: reasons to ditch LILO before upgrading to jessie? Don Armstrong <don@debian.org> - 2016-07-06 21:30 +0200
            Re: reasons to ditch LILO before upgrading to jessie? <tomas@tuxteam.de> - 2016-07-07 08:40 +0200
              Re: reasons to ditch LILO before upgrading to jessie? Lisi Reisz <lisi.reisz@gmail.com> - 2016-07-07 11:40 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Brian <ad44@cityscape.co.uk> - 2016-07-07 12:40 +0200
                Re: reasons to ditch LILO before upgrading to jessie? <tomas@tuxteam.de> - 2016-07-07 12:50 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Brian <ad44@cityscape.co.uk> - 2016-07-07 13:30 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Giovanni Gigante <giovanni.gigante@deepsky.it> - 2016-07-07 17:20 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Stephen Powell <zlinuxman@fastmail.com> - 2016-07-08 02:40 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Felix Miata <mrmazda@earthlink.net> - 2016-07-08 03:00 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Stephen Powell <zlinuxman@fastmail.com> - 2016-07-09 15:10 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Felix Miata <mrmazda@earthlink.net> - 2016-07-09 17:00 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Stephen Powell <zlinuxman@fastmail.com> - 2016-07-09 19:20 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Brian <ad44@cityscape.co.uk> - 2016-07-09 22:10 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Erwan David <erwan@rail.eu.org> - 2016-07-09 22:10 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Felix Miata <mrmazda@earthlink.net> - 2016-07-09 22:40 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Brian <ad44@cityscape.co.uk> - 2016-07-10 00:20 +0200
                Re: reasons to ditch LILO before upgrading to jessie? <tomas@tuxteam.de> - 2016-07-10 10:40 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Brian <ad44@cityscape.co.uk> - 2016-07-10 13:20 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Stephen Powell <zlinuxman@fastmail.com> - 2016-07-09 22:50 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Brian <ad44@cityscape.co.uk> - 2016-07-10 00:30 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Stephen Powell <zlinuxman@fastmail.com> - 2016-07-10 04:20 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Pascal Hambourg <pascal@plouf.fr.eu.org> - 2016-07-10 10:20 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Stephen Powell <zlinuxman@fastmail.com> - 2016-07-10 14:10 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Felix Miata <mrmazda@earthlink.net> - 2016-07-10 00:50 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Pascal Hambourg <pascal@plouf.fr.eu.org> - 2016-07-10 09:50 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Felix Miata <mrmazda@earthlink.net> - 2016-07-09 22:40 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Stephen Powell <zlinuxman@fastmail.com> - 2016-07-09 23:10 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Richard Owlett <rowlett@cloud85.net> - 2016-07-10 15:40 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Brian <ad44@cityscape.co.uk> - 2016-07-10 16:30 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Joel Roth <joelz@pobox.com> - 2016-07-10 08:40 +0200
                UEFI bootloaders (was: Re: reasons to ditch LILO before upgrading to  jessie?) Joel Roth <joelz@pobox.com> - 2016-07-10 23:20 +0200
                Re: UEFI bootloaders (was: Re: reasons to ditch LILO before upgrading to jessie?) "Byung-Hee HWANG (황병희)" <soyeomul@doraji.xyz> - 2016-07-11 01:20 +0200
              Re: reasons to ditch LILO before upgrading to jessie? David Wright <deblis@lionunicorn.co.uk> - 2016-07-07 20:30 +0200
  Re: reasons to ditch LILO before upgrading to jessie? Gary Dale <garydale@torfree.net> - 2016-07-07 20:50 +0200
    Re: reasons to ditch LILO before upgrading to jessie? David Wright <deblis@lionunicorn.co.uk> - 2016-07-07 21:00 +0200
      Re: reasons to ditch LILO before upgrading to jessie? Gary Dale <garydale@torfree.net> - 2016-07-07 21:20 +0200
        Re: reasons to ditch LILO before upgrading to jessie? David Wright <deblis@lionunicorn.co.uk> - 2016-07-07 21:40 +0200
        Re: reasons to ditch LILO before upgrading to jessie? Brian <ad44@cityscape.co.uk> - 2016-07-07 23:20 +0200
          Re: reasons to ditch LILO before upgrading to jessie? Gary Dale <garydale@torfree.net> - 2016-07-08 05:40 +0200
            Re: reasons to ditch LILO before upgrading to jessie? Brian <ad44@cityscape.co.uk> - 2016-07-08 20:20 +0200
              Re: reasons to ditch LILO before upgrading to jessie? Gary Dale <garydale@torfree.net> - 2016-07-08 21:10 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Brian <ad44@cityscape.co.uk> - 2016-07-08 22:00 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Gary Dale <garydale@torfree.net> - 2016-07-09 00:20 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Brian <ad44@cityscape.co.uk> - 2016-07-09 01:10 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Gary Dale <garydale@torfree.net> - 2016-07-09 05:30 +0200
              Re: reasons to ditch LILO before upgrading to jessie? David Wright <deblis@lionunicorn.co.uk> - 2016-07-08 21:30 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Brian <ad44@cityscape.co.uk> - 2016-07-08 22:20 +0200
                Re: reasons to ditch LILO before upgrading to jessie? David Wright <deblis@lionunicorn.co.uk> - 2016-07-09 00:10 +0200
                Re: reasons to ditch LILO before upgrading to jessie? Brian <ad44@cityscape.co.uk> - 2016-07-09 00:30 +0200
      Re: reasons to ditch LILO before upgrading to jessie? Michael Milliman <michael.e.milliman@gmail.com> - 2016-07-07 21:40 +0200
        Re: reasons to ditch LILO before upgrading to jessie? rhkramer@gmail.com - 2016-07-08 00:50 +0200
          Re: reasons to ditch LILO before upgrading to jessie? Michael Milliman <michael.e.milliman@gmail.com> - 2016-07-08 02:00 +0200
          Re: reasons to ditch LILO before upgrading to jessie? Michael Milliman <michael.e.milliman@gmail.com> - 2016-07-08 02:00 +0200
          Re: enumerating with Grub* (was: reasons to ditch LILO before...) Felix Miata <mrmazda@earthlink.net> - 2016-07-08 02:10 +0200
            Re: enumerating with Grub* (was: reasons to ditch LILO before...) David Wright <deblis@lionunicorn.co.uk> - 2016-07-08 03:10 +0200
              Re: enumerating with Grub* (was: reasons to ditch LILO before...) rhkramer@gmail.com - 2016-07-08 04:20 +0200
              Re: enumerating with Grub* Felix Miata <mrmazda@earthlink.net> - 2016-07-08 05:00 +0200
                Re: enumerating with Grub* David Wright <deblis@lionunicorn.co.uk> - 2016-07-08 07:20 +0200
                Re: enumerating with Grub* Felix Miata <mrmazda@earthlink.net> - 2016-07-08 07:50 +0200
                Re: enumerating with Grub* David Wright <deblis@lionunicorn.co.uk> - 2016-07-08 16:50 +0200
    Re: reasons to ditch LILO before upgrading to jessie? Felix Miata <mrmazda@earthlink.net> - 2016-07-08 06:10 +0200

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