Partition numbers
Within the package Boot-US all partitions on a hard disk are assigned a partition number
according to the following rule:
Primary and extended partition are assigned always a partition number between 1 and 4.
Logical partitions are assigned always a partition number of 5 and higher.
Within each of the two groups the partitions are ordered according to their position on the hard disk.
For example a primary (or extended) partition with the number 1 lies before a partition with the number 2.
Similarly a logical partition with the number 5 always lies before a log. partition with the number 6.
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