On Mon, Sep 26, 2016 at 11:06 PM, O'Connor, Daniel <dar...@dons.net.au> wrote: > >> On 27 Sep 2016, at 14:28, Warner Losh <i...@bsdimp.com> wrote: >> dd of 2MB of zeros to the start and end of the disk. That will destroy >> pretty much everything. For SSDs, sometimes you can do the same with >> TRIMs only faster (other times they are slower or unreliable). > > Yeah, but it would be nicer to not have to know that particular magic > incarnation :)
Disk formatting has always been 3 parts magic, 2 parts luck and 1 part skill :) It doesn't fit nicely into geom because metadata can live elsewhere. I forgot to add the caveat not to try this on a disk that is part of a RAID volume. Warner _______________________________________________ email@example.com mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"