CentOS 7.x change filesystem UUID

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Home > CentOS > CentOS 7.x > System Administration > File system management > CentOS 7.x change filesystem UUID

Changing filesystem UUID is required for cloned systems. This is also required if a boot root device is detached from a AWS VM and attached to another VM created with same AMI ID. To change UUID use following steps:

  1. Find UUID using blkid
  2. Generate new using uuidgen
  3. Update filesystem UUID
    • For ext filesystems update using:
      tune2fs <device> -U <new-UUID>
    • For xfs use:
      xfs_admin -U generate <device>


Refer:



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