Table of Contents

Ubuntu - Boot - Master Boot Record (MBR)

The Master Boot Record (MBR) resides in the first 512 bytes of the hard disk. This 512 bytes contains two things:

  1. 440 bytes for the boot loader (Grub, or Windows boot loader, etc.)
  2. The remaining space is used for the partition table, i.e.: there can only be 4 primary partition in an MBR partitioning scheme. This remaining area also has the partition location information.

This can be done by two methods:


Cons of the MBR partitioning scheme


Alternatives

See GUID Partition Table (GPT).