Why do we see the warning -- "WARNING: DOS-compatible mode is deprecated. It's strongly recommended to switch off the mode (command 'c') and change display units to sectors (command 'u')."?

Solution Unverified - Updated -

Issue

  • We are getting DOS compatibility warning in spite of creating the partition with DOS Compatibility mode disabled i.e. using fdisk -cu.
 # fdisk /dev/sdb

WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
         switch off the mode (command 'c') and change display units to
         sectors (command 'u').

 Command (m for help):

Is this normal?

Environment

  • Red Hat Enterprise Linux 6
  • fdisk

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Close

Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.