Re: Possibly erroneous "device not present" message during boot

From	Brian <ad44@cityscape.co.uk>
Newsgroups	linux.debian.user
Subject	Re: Possibly erroneous "device not present" message during boot
Date	2017-04-18 21:20 +0200
Message-ID	<txGPo-1wE-15@gated-at.bofh.it> (permalink)
References	(5 earlier) <twDTz-3AT-3@gated-at.bofh.it> <tx3O1-2Cp-3@gated-at.bofh.it> <txawa-6Xn-5@gated-at.bofh.it> <txkca-4vI-9@gated-at.bofh.it> <txGcG-140-29@gated-at.bofh.it>
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On Tue 18 Apr 2017 at 20:32:38 +0200, Pascal Hambourg wrote:

> Le 17/04/2017 à 21:05, Brian a écrit :
> >On Mon 17 Apr 2017 at 08:48:50 +0000, Curt wrote:
> >
> >>On 2017-04-17, David Wright <deblis@lionunicorn.co.uk> wrote:
> >>>
> >>>Oddly, this ancient laptop (Acer) has a slot that makes the SD card
> >>>look like a /dev/sdX disk, and the BIOS is happy to boot from it.
> >>
> >>I have an Acer X1430 with an internal "Multi-in-1 Media Card Reader" for
> >>which an SD card inserted into the reader is recognized by the kernel as
> >>as a /dev/sdX disk.
> >
> >You have to be careful here to distinguish between what the OS can
> >recognise and what GRUB can see. The kernel will be using the Multimedia
> >Card device drivers to detect the device
> 
> Not always. If the card reader identifies itself as a generic USB mass
> storage device, then the kernel will use the same drivers as for USB drives
> and assign the same kind of name /dev/sd*. It seems that in this case, most
> BIOS recognize it and can boot from it.
> 
> I guess that the kernel will use MMC device drivers only if the card reader
> identifies itself as a native SD/MMC card reader.

Seems reasonable and sensible. However, my main point was that the kernel
identifying a card as a /dev/sdX disk does not imply it will necessarily
be visible to GRUB and bootable by it. 

-- 
Brian.

Thread

Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-12 13:20 +0200
  Re: Possibly erroneous "device not present" message during boot songbird <songbird@anthive.com> - 2017-04-12 14:50 +0200
    Re: Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-12 17:20 +0200
      Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-12 19:20 +0200
        Re: Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-12 20:40 +0200
          Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-12 21:10 +0200
            Re: Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-13 13:50 +0200
              Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-13 17:50 +0200
                Re: Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-13 19:40 +0200
                Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-13 20:10 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-14 01:20 +0200
                Re: Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-14 19:10 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-14 20:40 +0200
                Re: Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-15 18:40 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-15 20:10 +0200
                Re: Possibly erroneous "device not present" message during boot songbird <songbird@anthive.com> - 2017-04-15 20:20 +0200
                Re: customized Grub (was: Possibly erroneous "device not present...) Felix Miata <mrmazda@earthlink.net> - 2017-04-15 21:00 +0200
                Re: customized Grub (was: Possibly erroneous "device not present...) Brian <ad44@cityscape.co.uk> - 2017-04-15 21:20 +0200
                Re: customized Grub Richard Owlett <rowlett@cloud85.net> - 2017-04-15 22:40 +0200
                Re: customized Grub Curt <curty@free.fr> - 2017-04-16 11:40 +0200
                Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-15 00:10 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-17 21:10 +0200
                Re: Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-18 00:10 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-18 00:40 +0200
                Re: Possibly erroneous "device not present" message during boot Lisi Reisz <lisi.reisz@gmail.com> - 2017-04-18 00:50 +0200
                Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-18 20:50 +0200
                Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-18 20:50 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-18 21:30 +0200
                Re: Possibly erroneous "device not present" message during boot songbird <songbird@anthive.com> - 2017-04-15 02:20 +0200
                Re: Possibly erroneous "device not present" message during boot David Wright <deblis@lionunicorn.co.uk> - 2017-04-15 02:50 +0200
                Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-15 11:10 +0200
                Re: Possibly erroneous "device not present" message during boot David Wright <deblis@lionunicorn.co.uk> - 2017-04-15 16:40 +0200
                Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-15 19:20 +0200
                Re: Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-15 20:20 +0200
                Re: Possibly erroneous "device not present" message during boot David Wright <deblis@lionunicorn.co.uk> - 2017-04-15 23:20 +0200
                Re: Possibly erroneous "device not present" message during boot David Wright <deblis@lionunicorn.co.uk> - 2017-04-15 23:00 +0200
                Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-16 00:00 +0200
                Re: Possibly erroneous "device not present" message during boot David Wright <deblis@lionunicorn.co.uk> - 2017-04-17 03:40 +0200
                Re: Possibly erroneous "device not present" message during boot Curt <curty@free.fr> - 2017-04-17 10:50 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-17 21:10 +0200
                Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-18 20:40 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-18 21:20 +0200
                Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-19 00:20 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-19 00:30 +0200
                Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-19 20:40 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-19 21:40 +0200
                Re: Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-19 22:20 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-22 13:50 +0200
                Re: Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-22 19:00 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-22 20:10 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-22 20:20 +0200
                Re: Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-22 20:40 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-22 21:10 +0200
                Re: Possibly erroneous "device not present" message during boot David Wright <deblis@lionunicorn.co.uk> - 2017-04-22 23:30 +0200
                Re: Possibly erroneous "device not present" message during boot Doug <dmcgarrett@optonline.net> - 2017-04-15 21:30 +0200
                Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-15 22:20 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-15 13:10 +0200
                Re: Possibly erroneous "device not present" message during boot songbird <songbird@anthive.com> - 2017-04-15 16:10 +0200
                Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-15 19:30 +0200
                Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-15 19:30 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-15 19:50 +0200
                Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-15 21:10 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-15 21:40 +0200
                Re: Possibly erroneous "device not present" message during boot David Wright <deblis@lionunicorn.co.uk> - 2017-04-15 03:40 +0200
                Re: Possibly erroneous "device not present" message during boot GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-04-17 23:20 +0200
                Re: Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-18 00:30 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-16 16:40 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-16 17:10 +0200
                Re: Possibly erroneous "device not present" message during boot David Wright <deblis@lionunicorn.co.uk> - 2017-04-13 19:40 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-13 21:10 +0200
          Re: Possibly erroneous "device not present" message during boot songbird <songbird@anthive.com> - 2017-04-12 21:30 +0200
            Re: Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-13 13:50 +0200
          Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-12 21:30 +0200
            Re: Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-13 17:20 +0200
              Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-13 18:30 +0200
          Re: Possibly erroneous "device not present" message during boot GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-04-17 22:50 +0200
            Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-18 21:00 +0200
              Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-18 21:50 +0200
                Re: Possibly erroneous "device not present" message during boot The Wanderer <wanderer@fastmail.fm> - 2017-04-19 05:50 +0200
                Re: Possibly erroneous "device not present" message during boot GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-04-19 09:50 +0200
                Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-19 20:30 +0200
                Re: Possibly erroneous "device not present" message during boot David Wright <deblis@lionunicorn.co.uk> - 2017-04-22 00:20 +0200
                Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-22 15:50 +0200
        Re: Possibly erroneous "device not present" message during boot songbird <songbird@anthive.com> - 2017-04-12 21:00 +0200
          Re: Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-13 18:00 +0200
            Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-14 20:00 +0200
              Re: Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-14 20:50 +0200
      Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-14 19:50 +0200
        Re: Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-14 20:40 +0200
          Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-15 12:50 +0200
            Re: Possibly erroneous "device not present" message during boot songbird <songbird@anthive.com> - 2017-04-15 16:10 +0200
            Re: Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-15 19:00 +0200
              Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-15 19:30 +0200
                Re: Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-15 20:10 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-15 21:00 +0200
                Re: Possibly erroneous "device not present" message during boot David Wright <deblis@lionunicorn.co.uk> - 2017-04-15 23:40 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-16 00:30 +0200
                Re: Possibly erroneous "device not present" message during boot David Wright <deblis@lionunicorn.co.uk> - 2017-04-20 04:20 +0200
                Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-20 08:00 +0200
                Re: Possibly erroneous "device not present" message during boot David Wright <deblis@lionunicorn.co.uk> - 2017-04-20 17:20 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-22 15:00 +0200
                Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-22 15:40 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-22 15:50 +0200
                Re: Possibly erroneous "device not present" message during boot Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-04-22 16:00 +0200
                Re: Possibly erroneous "device not present" message during boot Richard Owlett <rowlett@cloud85.net> - 2017-04-22 16:50 +0200
                Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-27 18:20 +0200
  Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-23 21:50 +0200
    Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-24 20:40 +0200
      Re: Possibly erroneous "device not present" message during boot David Wright <deblis@lionunicorn.co.uk> - 2017-04-24 22:20 +0200
        Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-04-25 15:10 +0200
          Re: Possibly erroneous "device not present" message during boot Brian <ad44@cityscape.co.uk> - 2017-05-04 19:20 +0200

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