One thing that bit me is that on RH 7.1 you _should_ use ext4[1], but on RH 7.2 you _need_ to use xfs[2] [1] https://access.redhat.com/documentation/en-US/Red_

One thing that bit me is that on RH 7.1 you _should_ use ext4[1], but on RH 7.2 you _need_ to use xfs[2] [1] https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/7.1_Release_Notes/chap-Red_Hat_Enterprise_Linux-7.1_Release_Notes-File_Systems.html#TP-OverlayFS https://access.redhat.com/documentation/en-US/Red_Hat_Enterp... [2] https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/7.2_Release_Notes/technology-preview-file_systems.html https://access.redhat.com/documentation/en-US/Red_Hat_Enterp...