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Re: [solved, partly] Re: Grub menu entry for a system on a second drive.

From peter@easthope.ca
Newsgroups linux.debian.user
Subject Re: [solved, partly] Re: Grub menu entry for a system on a second drive.
Date 2024-10-27 19:50 +0100
Message-ID <JCguS-4Dse-11@gated-at.bofh.it> (permalink)
References (1 earlier) <JBd61-3YE2-1@gated-at.bofh.it> <JBvvX-49ZN-7@gated-at.bofh.it> <JBAch-4cPP-13@gated-at.bofh.it> <JC2UV-4uwu-1@gated-at.bofh.it> <JCcUh-4Beu-3@gated-at.bofh.it>
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    From: David Wright <deblis@lionunicorn.co.uk>
    Date: Sun, 27 Oct 2024 09:56:45 -0500
> That earlier installation is presumably the bookworm that
> wrote (hd0,gpt2)/boot/grub/grub.cfg with the Grub deb12u1,
> which I pointed out in my first post, but wasn't confirmed
> by your follow-up.

Yes, the multiple details have confused me.

> I don't know anything about nativedisk or the distinctions between
> various types of driver.

The only documantation I've found is here.
https://www.gnu.org/software/grub/manual/grub/grub.html#nativedisk

"firmware disk drivers" means drivers in the machine BIOS?
"native ones" means drivers in Grub?
"native disk drives" appears to be a typo.  I read it as "native disk drivers".

Grub2 documentation needs work.

> OTO you could just let os-prober run when you build Grub and let it
> do the job for you. Is there any reason why you don't want to run
> os-prober? Sorry, I'm repeating myself.

A search of "os-prober security" finds several pages.  os-prober is 
disabled by default in Archlinux and other respected distributions.

For interest, I enabled os-prober again in /etc/default/grub and ran 
grub-install /dev/sda.  lsblk reports the USB connected /dev/sdc6 
where Void is installed.  Nevertheless the only stanza in 
/boot/grub/grub.cfg for Void is from my entry in 
/etc/grub.d/40_custom.  Os-prober tried and failed.

A bug in os-prober?  A problem with the HDD?  A problem with the 
SATA-USB2 adapter? A bug in grub2?

An interesting observation is that the USB-connected Void system boots 
with no snags when selected directly in the BIOS.  To me, that 
suggests a problem in grub2 or os-prober.

Rather than spend more time investigating, will put the HDD in the 
target machine and work there.  Remove some of the complications.

Regards,                ... P.


-- 
VoIP:   +1 604 670 0140
work: https://en.wikibooks.org/wiki/User:PeterEasthope

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Thread

Grub menu entry for a system on a second drive. peter@easthope.ca - 2024-10-24 22:50 +0200
  Re: Grub menu entry for a system on a second drive. Felix Miata <mrmazda@earthlink.net> - 2024-10-24 23:00 +0200
  Re: Grub menu entry for a system on a second drive. David Wright <deblis@lionunicorn.co.uk> - 2024-10-25 05:30 +0200
    Re: Grub menu entry for a system on a second drive. peter@easthope.ca - 2024-10-25 17:50 +0200
      Re: Grub menu entry for a system on a second drive. Joe <joe@jretrading.com> - 2024-10-25 18:10 +0200
        Re: Grub menu entry for a system on a second drive. Max Nikulin <manikulin@gmail.com> - 2024-10-25 18:40 +0200
        Re: Grub menu entry for a system on a second drive. peter@easthope.ca - 2024-10-25 21:00 +0200
          Re: Grub menu entry for a system on a second drive. David Wright <deblis@lionunicorn.co.uk> - 2024-10-25 21:20 +0200
            Re: Grub menu entry for a system on a second drive. peter@easthope.ca - 2024-10-25 22:50 +0200
              Re: Grub menu entry for a system on a second drive. peter@easthope.ca - 2024-11-10 02:30 +0100
                Re: Grub menu entry for a system on a second drive. David Wright <deblis@lionunicorn.co.uk> - 2024-11-12 05:00 +0100
      Re: Grub menu entry for a system on a second drive. Greg Wooledge <greg@wooledge.org> - 2024-10-25 18:50 +0200
      Re: Grub menu entry for a system on a second drive. David Wright <deblis@lionunicorn.co.uk> - 2024-10-25 20:20 +0200
  Re (2): Grub menu entry for a system on a second drive. peter@easthope.ca - 2024-10-25 18:40 +0200
    Re: Grub menu entry for a system on a second drive. Felix Miata <mrmazda@stanis.net> - 2024-10-25 20:00 +0200
      Re: Grub menu entry for a system on a second drive. David Wright <deblis@lionunicorn.co.uk> - 2024-10-25 21:10 +0200
        Re: Grub menu entry for a system on a second drive. Felix Miata <mrmazda@stanis.net> - 2024-10-25 22:50 +0200
        Re: Grub menu entry for a system on a second drive. Felix Miata <mrmazda@stanis.net> - 2024-10-26 06:00 +0200
          Re: Grub menu entry for a system on a second drive. David Wright <deblis@lionunicorn.co.uk> - 2024-10-26 07:10 +0200
    Re: Re (2): Grub menu entry for a system on a second drive. Tim Woodall <debianuser@woodall.me.uk> - 2024-10-25 23:40 +0200
      [solved, partly] Re: Grub menu entry for a system on a second drive. peter@easthope.ca - 2024-10-27 05:20 +0100
        Re: [solved, partly] Re: Grub menu entry for a system on a second  drive. David Wright <deblis@lionunicorn.co.uk> - 2024-10-27 16:00 +0100
          Re: [solved, partly] Re: Grub menu entry for a system on a second drive. peter@easthope.ca - 2024-10-27 19:50 +0100
            Re: [solved, partly] Re: Grub menu entry for a system on a second  drive. Greg Wooledge <greg@wooledge.org> - 2024-10-28 12:10 +0100
              Re: [solved, partly] Re: Grub menu entry for a system on a second  drive. Greg Wooledge <greg@wooledge.org> - 2024-11-01 12:10 +0100
            Re: [solved, partly] Re: Grub menu entry for a system on a second drive. peter@easthope.ca - 2024-10-28 17:30 +0100
            Re: [solved, more] Re: Grub menu entry for a system on a second drive. peter@easthope.ca - 2024-11-02 16:10 +0100
              Re: [solved, more] Re: Grub menu entry for a system on a second  drive. David Wright <deblis@lionunicorn.co.uk> - 2024-11-04 05:50 +0100
                Re: [solved, more] Re: Grub menu entry for a system on a second drive. peter@easthope.ca - 2024-11-10 04:00 +0100
              Re: [solved, more] Re: Grub menu entry for a system on a second  drive. Dan Purgert <dan@djph.net> - 2024-11-04 13:50 +0100
          Re: [solved, partly] Re: Grub menu entry for a system on a second  drive. Max Nikulin <manikulin@gmail.com> - 2024-11-03 03:50 +0100

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