[haiku-bugs] Re: [Haiku] #6301: DriveSetup writes MBR inconsistent with anyboot image.

#6301: DriveSetup writes MBR inconsistent with anyboot image.
--------------------------------------+-------------------------------------
  Reporter:  preroll                  |         Owner:  stippi           
      Type:  bug                      |        Status:  new              
  Priority:  normal                   |     Milestone:  R1               
 Component:  Applications/DriveSetup  |       Version:  R1/alpha2        
Resolution:                           |      Keywords:  MBR boot CHS bits
Blocked By:                           |   Has a Patch:  1                
  Platform:  x86                      |      Blocking:                   
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Comment (by starsseed):

 haiku_loader does not work on my laptop (see the bug #4408 #5539 #5696
 #5720) so, I can't test on it. Neither on my desktop system whom BIOS
 doesn't care about CHS informations...

 But I remember having problems to create a valid MBR/partition-table for
 my USB key, and I never completely understood why! (now I create the MBR
 and the partition from windows and copy the boot-code area from an
 AnyBoot-image with dd)

 Preroll, did you test the patch ?

 @Bonefish[[BR]]
 Note that:
 - FF FF FF implies a disks with UUID partition table (EFI) then EF FF FF
 would be better
 - since DriveSetup creates the first partition at sector CHS={01 02 00}
 (i.e. Cylinder=0/Head=1/sector=2 or LBA=40) it seems it does not take care
 about the disk geometry. I think it's not correct : the 1st partition
 should be aligned on the 1st sector (2nd,3rd,4th partition should be
 aligned on head*sector - 1st sector/Head 0).

-- 
Ticket URL: <http://dev.haiku-os.org/ticket/6301#comment:5>
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