From: malcolmlewis@linuxmail.org.invalid   
      
   On Wed, 22 Mar 2023 11:39:46 +0100   
   "Carlos E.R."  wrote:   
      
   > On 2023-03-22 04:55, Malcolm wrote:   
   > > On Tue, 21 Mar 2023 21:23:40 -0400   
   > > bad sector  wrote:   
   > >    
   > >   
   > >> But none of this is getting me any closer to getting a handle on   
   > >> the difference between 1 & 3 in the OP, or on the need to use the   
   > >> system partition as a "Boot Partition" when there already is a   
   > >> definitive "BIOS Boot" partition. I figure a little more verbose   
   > >> help bubbles on that dialog would be useful.   
   > > Hi   
   > > BIOS Boot (type pmbr_boot) is need when using Legacy Boot and a gpt   
   > > disk.   
   > >   
   >   
   > If GRUB is installed on the MBR. If it is installed on partition,   
   > then no.   
   >   
   > But in his case it is installed in both, so the safe course is having   
   > the so called bios boot partition.   
   >   
   >   
   > Oh, I have said it many times, the so called bios boot partition is   
   > not the same, not related, to having an ESP partition or a /boot   
   > partition. The three are different. Only the later is not needed   
   > except on special cases.   
   >   
   Hi   
   There is no MBR on a gpt disk, hence the need for the small ~8MB   
   pmbr_boot...   
      
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