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512 byte boot.img

From: k2011gen
Subject: 512 byte boot.img
Date: Fri, 14 Jan 2011 22:11:48 -0500

>From the grub2 manual

    On PC BIOS systems, this image is the first part of GRUB to start. It is 
written to a master boot record (MBR) or to the boot sector of a partition. 
Because a PC boot sector is 512 bytes, the size of this image is exactly 512 

I always thought that the 512 byte MBR also includes the Partition-Table. So 
with the boot.img being 512 bytes and being written to the disk root sector 
what happens to the PT?

Another Q:

Just to confirm that the image that grub-mkimage makes is the core.img?


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