How to enable 64-bit feature on EXT filesystem

Solution In Progress - Updated -


  • How can we convert the 32-bit formatted EXT file system to 64-bit?
  • Getting below message while enabling 64bit feature on EXT filesystem:
[root@rhel-79 ~]# tune2fs -O +64bit /dev/tmpvg/testlv
tune2fs 1.42.9 (28-Dec-2013)
Setting filesystem feature '64bit' not supported.


  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

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