[haiku-development] Re: r1a3 anyboot image too big for CD

  • From: Adrien Destugues <pulkomandy@xxxxxxxxxxxxxxxxx>
  • To: haiku-development@xxxxxxxxxxxxx
  • Date: Mon, 30 May 2011 21:16:07 +0100

Le 30/05/2011 19:54, Starsseed a écrit :
From: "Ingo Weinhold" <ingo_weinhold@xxxxxx>
Matt Madia wrote:
IOCache: falling back to uncached transfer, offset 712815616, length 8192
No clue where this output comes from. Grepping through the kernel and kernel add-on sources yields nothing like this.

The anyboot image contain a partionning system. here is the partition entry. 0x80, 0xff, 0xff, 0xff, 0xeb, 0xff, 0xff, 0xff, 0x00, 0x20, 0x00, 0x00, 0x00, 0x30, 0x07, 0x00,

We can see that the partition start at offset { 0x00, 0x20, 0x00, 0x00, }= 0x00000200 (little endian) So there are 8191*512 MiB lost between the end of the MBR and the beginny of the partition (~4MiB). IMHO, we don't need such a big alignment and then we could save a bit of space.


Wrong ! This space is used for the ISO header. Without it, the image wouldn't work as a bootable CD.

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