use newfs_msdos /dev/da0 in FreeBSD,then format it to NTFS in windows. I used this command solve the same problem.
2013/3/29 Ronald F. Guilmette <r...@tristatelogic.com> > > > So, um, I downloaded the memstick.img file for FreeBSD 9.1-RELEASE and > then I dd'ed that to my 16GB ADATA USB flash thingy. After that, it > worked just fine, and as expected. No problems. I could boot FreeBSD > from it. > > Now however, I need to use that USB stick for something else, and I > want to reformat the thing as a single NTFS file system using, one > of my Windows systems to do that (re-)format. > > The problem is that now, the Windows system seems to think that the > size of the thing is only something like 24.2 Megabytes... *not* the > actual size, which is vastly larger (16GB). > > So I take the thing back and plug it in again to my FreeBSD system > and I'm just about ready to simply dd a whole bunch of /dev/zero to > the thing... figuring that this will probably cure it of its current > drain bamage... but then at the last second I hesitate and decide to > actually try to _understand_ what's going on here, really, for a change. > > So now I'm reading the man page for glabel(8) and I figure that this > may help me to understand how the heck a 16GB USB flash thing magically > becomes a (much smaller) 24.4 MB flash thingy. And I immediately spot > the "dump" option. naturally, based on the name and the (rather terse) > description in the man page, and I figure that this has got to be be > useful. So I try it: > > # glabel dump da0 > Can't read metadata from da0: Invalid argument. > glabel: Not fully done. > # glabel dump /dev/da0 > Can't read metadata from /dev/da0: Invalid argument. > glabel: Not fully done. > > Now, I say to you all, WTF? Why don't this work? Why don't it show me > anything useful? > > Also, what exactly is this "fully done" gibberish? > > Is this like a souffle? If I come back in an hour, will it be "fully > done"? > > > Regards, > rfg > > > P.S. Yes, I _did_ plug the thing in firmly. It's there alright. > > # ls -l /dev/da* > crw-r----- 1 root operator 0, 169 Mar 28 15:59 /dev/da0 > crw-r----- 1 root operator 0, 170 Mar 28 15:59 /dev/da0a > > > P.P.S. So what _is_ the best tool for just simply taking some sort of > drive... like a USB flash drive, or any other kind of drive for that > matter... and returning it to it's actual size? > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscr...@freebsd.org" > -- Jov blog: http:amutu.com/blog <http://amutu.com/blog> _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
