Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Why there is a partition type in GUID Partition Table?

What are they using for?

share|improve this question
up vote 3 down vote accepted

Because partitions hold different types of data. Here's a list of some of them.

Operating systems use the type code to decide whether a partition is one that it's interested in. For example, Windows only creates drive letters for partitions with specific types that it's aware of; it'll ignore partitions belonging to other operating systems, since it doesn't expect to understand them. And EFI firmware looks for a partition with a special "system" type code and uses it for booting.

share|improve this answer

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .