On Sun, 18 Feb 2018, Richard W.M. Jones wrote:
There's also a more serious data safety issue: Although this
probably
works OK for ext2 since that format is frozen in time, it probably
corrupts ext4 filesystems containing features that it doesn't know
about.
It is for these reasons that I don't think you should use this package
and I intend to retire it unless anyone says otherwise.
Last time I used it (a year ago?) it worked properly for ext3 and ext4, but
on RHEL rather on Fedora. Not sure which features you are talking about in
detail, but bumping zerofree from 1.0.3 to 1.1.0 would add 64 bit block no.
support at least...
Regards,
Robert