Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop

From	"Carlos E.R." <robin_listas@es.invalid>
Newsgroups	alt.os.linux, uk.comp.os.linux, alt.comp.microsoft.windows, alt.comp.os.windows-11
Subject	Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop
Date	2025-12-16 21:27 +0100
Message-ID	<jur81mxhpg.ln2@Telcontar.valinor> (permalink)
References	<10e2bmf$g287$1@dont-email.me> <10etvu3$d2va$1@dont-email.me> <10hs3fr$2tesj$1@dont-email.me>

Cross-posted to 4 groups.

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On 2025-12-16 18:04, Java Jive wrote:
> On 2025-11-11 00:27, Java Jive wrote:
>>
>> However, as it has turned out, I've only been able to achieve partial 
>> backward compatibility in that all the 64-bit OSs can now be booted 
>> from D3, but not the 32-bit OS, I've not been able to find a way of 
>> booting Win 7 Pro 32-Bit from UEFI.  Further, I have not been able to 
>> find a way of booting *ANY* 32-Bit OS, not even a UEFI boot Win 8 Pro 
>> 32-Bit installation USB, when using UEFI on that particular PC (so 
>> probably none of the others either, because they're all identical or 
>> nearly so), so I suspect that this is a firmware limitation with this 
>> range of PCs.
> 
> Had another look at this today, and, as I suspected, it is indeed a 
> firmware limitation of these Dell Precision M6700/M6800 laptops:
> 
> https://www.google.com/search?q=boot+via+UEFI+32- 
> bit+windows+on+Dell+Precision+M6700
> 
> "AI Overview
> 
> Booting a 32-bit version of Windows in UEFI mode on a Dell Precision 
> M6700 is not typically possible, because the system's UEFI firmware is 
> 64-bit and does not support native 32-bit UEFI booting.  Most modern 
> systems, including the M6700, use a 64-bit UEFI, which requires a 64-bit 
> operating system to boot in UEFI mode."
> 

Ah.

-- 
Cheers, Carlos.
ES🇪🇸, EU🇪🇺;

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Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop Java Jive <java@evij.com.invalid> - 2025-10-31 12:56 +0000
  Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop "Carlos E.R." <robin_listas@es.invalid> - 2025-10-31 14:26 +0100
  Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop Windows Elf <windows.elf@outlook.com.invalid> - 2025-10-31 14:57 +0000
  Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop Paul <nospam@needed.invalid> - 2025-10-31 12:04 -0400
  Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop Theo <theom+news@chiark.greenend.org.uk> - 2025-10-31 16:06 +0000
  Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop Java Jive <java@evij.com.invalid> - 2025-11-02 14:12 +0000
  Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop Java Jive <java@evij.com.invalid> - 2025-11-11 00:27 +0000
    Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop Paul <nospam@needed.invalid> - 2025-11-10 22:45 -0500
      Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop Java Jive <java@evij.com.invalid> - 2025-11-11 13:19 +0000
        Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop Paul <nospam@needed.invalid> - 2025-11-11 10:13 -0500
          Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop "Carlos E.R." <robin_listas@es.invalid> - 2025-11-14 13:24 +0100
            Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop Paul <nospam@needed.invalid> - 2025-11-14 13:03 -0500
              Re: scanners. "Carlos E.R." <robin_listas@es.invalid> - 2025-11-14 20:31 +0100
                Re: scanners. Paul <nospam@needed.invalid> - 2025-11-14 17:52 -0500
                Re: scanners. "Carlos E.R." <robin_listas@es.invalid> - 2025-11-15 04:06 +0100
        Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop Java Jive <java@evij.com.invalid> - 2025-11-15 01:57 +0000
          Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop "Carlos E.R." <robin_listas@es.invalid> - 2025-11-15 14:51 +0100
            Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop Java Jive <java@evij.com.invalid> - 2025-11-15 15:01 +0000
              Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop Paul <nospam@needed.invalid> - 2025-11-15 11:54 -0500
        Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop Java Jive <java@evij.com.invalid> - 2026-02-20 17:44 +0000
          Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop Paul <nospam@needed.invalid> - 2026-02-20 13:46 -0500
            Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop Java Jive <java@evij.com.invalid> - 2026-02-20 20:01 +0000
              Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop Java Jive <java@evij.com.invalid> - 2026-02-20 23:29 +0000
    Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop TJ <TJ@noneofyour.business> - 2025-11-16 13:58 -0500
    Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop Java Jive <java@evij.com.invalid> - 2025-12-16 17:04 +0000
      Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop "Carlos E.R." <robin_listas@es.invalid> - 2025-12-16 21:27 +0100
  Re: Is it possible to dual-boot both MBR & GPT without changing BIOS settings on laptop Adrian Caspersz <email@here.invalid> - 2025-11-22 18:22 +0000

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