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   alt.os.development      Operating system development chatter      4,255 messages   

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   Message 4,111 of 4,255   
   JJ to wolfgang kern   
   Re: Secrets on UEFI GPT   
   10 Feb 24 20:10:15   
   
   From: jj4public@outlook.com   
      
   On Fri, 9 Feb 2024 15:31:13 +0100, wolfgang kern wrote:   
   > because nobody responded to my questions and I couldn't find anything on   
   > the net it seems some parts of the story are intentional well hidden.   
   > So now I have to try and fail, which may cost me several month.   
   > And whenever/if at all I find these missing info I will keep it a secret   
   > as well.   
   >   
   > On 27/01/2024 09:50, I wrote:   
   >> my attempt to manually create a complete UEFI startup with KESYS hexwork   
   >> still encounter many obstacles :)   
   >> QUESTIONS still are:  what should I enter into   
   >> 1. the 64 bit Disk GUID (also referred as UUID on UNIXes)?   
   >> 2. the 64 bit GUID for FAT32 start partition (first entry in LBA_2)?   
   >> 3. is it really required to waste 33 sectors for never used entries?   
   >>     or would my short (only one sector) solution work as well?   
      
   Disk and partition IDs (in whatever form they use) are mainly for the upper   
   level storage drivers to differentiate between them, since they don't   
   normally deal with storage controller and port numbers (which is a task for   
   the lower level driver).   
      
   Reserved sectors near start of the disk has been around since MBR disk   
   layout. In MBR, the reserved sector would be up to 62 sectors for disks   
   which are configured to use 63 sectors per side configuration.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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