How can I extend an existing file-system partition without destroying data?

Solution Verified - Updated -

Issue

  • Need to extend partition size and file system size without destroying any existing data
  • How do you extend an existing non-lvm partition without destroy any data?
  • I would like to extend a disk partition /dev/sdX1, is there any supported method to accomplish this?
  • What are the steps for increasing non lvm disk size for root
  • /var utilization is 100%, how to extend the size of partition /dev/sda4 which is mounted on /var?

Environment

  • Red Hat Enterprise Linux (RHEL) 4, 5, 6, 7

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