XPost: uk.comp.os.linux, alt.comp.microsoft.windows, alt.comp.os.windows-11   
   From: nospam@needed.invalid   
      
   On Sat, 11/15/2025 10:01 AM, Java Jive wrote:   
   > On 2025-11-15 13:51, Carlos E.R. wrote:   
   >> On 2025-11-15 02:57, Java Jive wrote:   
   >>> On 2025-11-11 13:19, Java Jive wrote:   
   >>>>   
   >>>> On 2025-11-11 03:45, Paul wrote:   
   >>>>>   
   >>>>> On Mon, 11/10/2025 7:27 PM, Java Jive wrote:   
   >>>>>>   
   >>>>>> Perhaps next I might try seeing if I can boot W11P from the original   
   MBR menu, which would achieve the desired state of only needing one boot menu.   
   >>>>   
   >>>> Had a go at that meantime, couldn't get it to work.   
   >>>   
   >>> Still no success with this business of trying to boot Win11P on a GPT disk   
   from Grub launched from an MBR disk.  This is what I've tried ...   
   >>   
   >> Maybe using os-probe from the first disk, it would find the W11 and create   
   an stanza.   
   >   
   > Running 'update-grub' produces two entries, one for each set of UEFI boot   
   files in /dev/sdc{1,2}, and both entries are similar to the one already   
   quoted, except that both insert a drivemap command and use chainloader +1, so   
   both reboot the PC.   
   >   
      
   Would this process go any easier, if the controlling disk was   
   a UEFI one, and the only tricky chainloading it had to do was   
   an MBR one ?   
      
   I have a copy of the Supergrub disc, and it appears to only   
   support UEFI booting, as if MBR booting would not be sufficient.   
      
   Name: supergrub2-2.06s4-multiarch-USB.img.zip   
   Size: 24206301 bytes (23 MiB)   
   SHA256: 3F690588C5DBE80A9186818F5AA7B7566D4F2DC079F0FD9D06961F62DE0D7A0D   
      
      Paul   
      
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