Personally, I just do 'dd if=/dev/zero of=/path/to/zero.img bs=1M; rm -f /path/to/zero.img'. It's inelegant, for sure, but it works (note to run it as a normal user or else be careful of how your system reacts to running out of disk space for a moment).
fix-it-with-a-hammer-digimer On 08/02/16 04:34 PM, Wes James wrote: > Is there a utility to zero unused blocks on a disk? > > CentOS 6.7/Ext4 > > I saw zerofree, but I’m not sure it would work on Ext4 or even work on this > version of CentOS. > > thanks, > > -wes > _______________________________________________ > CentOS mailing list > CentOS@centos.org > https://lists.centos.org/mailman/listinfo/centos > -- Digimer Papers and Projects: https://alteeve.ca/w/ What if the cure for cancer is trapped in the mind of a person without access to education? _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
