From: nowhere@never.at   
      
   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?   
      
   please tell me what I may have missed and what's different to your   
   settings.   
   TIA   
   __   
   wolfgang   
      
   > what I have so far:   
   > (almost all is in hex, b/w/q/dq/qq mean 8/16/32/64/128 bit)   
      
   corrected (was off by one):   
   LBA_0:          MBR   
   0000...         all Zero   
   01BE 01         BootIndicator   
       Set to 0x00 to indicate a non-bootable partition.   
       If set to any value the behavior of this flag on non-UEFI systems is   
   undefined.   
       Must be ignored by UEFI implementations.   
   01BF 00 02 00   StartingCHS ;means LBA_01   
   01C2 EE         OSType (i.e GPT Protective)   
   01C3 FF FF FF   EndingCHS   
   01C6 q 01       StartingLBA   
   01CA q FFFFFFFF Size of whole disk (in sectors-1); less if smaller   
   01CE ...        remaining Partition Records shall each be set to zeros.   
   01FE 55 AA   
   ------------------   
   > [LBA_1] GPT header   
   > 000 45 46 49 20 50 41 52 54 ;"EFI PART" Signature   
   > 008 00 00 01 00   Revision for GPT version 1.0   
   >                    (through at least UEFI version 2.3.1),   
   > 00C 5C 00 00 00   Header size (in bytes)   
   > 010 q  0          CRC32 of header (offset +0 up to header size),   
   >                    with this field zeroed during calculation   
   > 014 q  0          Reserved; must be zero   
   > 018 dq ....       Current LBA (location of this header copy)   
   > 020 dq ....       Backup LBA (location of the other header copy)   
   > 028 dq 4          First usable LBA for partitions (primary last LBA   
   + 1)   
   >      specs say minimum 6 for 4K sectors and 34dec for 512 byte sectors   
   >      what a waste ...   
   > 030 dq ....       Last usable LBA (secondary partition first LBA - 1)   
   > 038 dq ???        Disk GUID (also referred as UUID on UNIXes)   
   > 048 dq 2          Starting LBA of array of partition entries   
   >                    (always 2 in primary)   
   > 050 q  00000004   Number of partition entries in array   
   > 054 q  00000080   Size of a single partition entry (usually 128)   
   > 058 q  0          CRC32 of partition array   
   > 05C..end of sector; all ZERO   
   >       (420 bytes for 512 byte sectors; but more with larger sector sizes)   
   > ---------------------------   
   > [LBA_2] I'd have only four partition entries assigned   
   > GUID partition entry format [128 byte each]   
   > 000 qq          Partition type GUID   
   > 1.    ??? boot part                       
    Â Â Â Â Â Â Â Â Â Â Â Â Â Â  ;FAT32   
   > 2.    "KESYS 64 ddmm2024" to be declared global unique ;KESYS64   
   > 3.    28 73 C1 2A-1F F8 D2 11  BA 4B 00 A0 C9 3E C9 3B ;EFI   
   > 4.    16 E3 C9 E3 5C 0B B8 4D  81 7D F9 2D F0 02 15 AE ;M$ reserved   
   >        ???                          
   Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â  ;or NTFS   
   > 010 qq  ???     Unique partition GUID   
   > 020 dq  4/x/x/x First LBA (specs say 6 or 34 for first partition)   
   > 028 dq          Last LBA (inclusive, usually odd)   
   > 030 dq         Attribute flags   
   > 038 str        72 bytes Partition name (36 UTF-16LE code units)   
   >   
   > The 64-bit partition table attributes are shared between 48-bit common   
   > attributes for all partition types, and 16-bit type-specific attributes.   
   >    
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)