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| author |   grunk <grunk@openbsd.org> | 2009-03-19 13:44:46 +0000 |
|---|---|---|
| committer | grunk <grunk@openbsd.org> | 2009-03-19 13:44:46 +0000 |
| commit | 7fbc6db12751ba5e79ed76b9a77a6a7aca491ff6 (patch) | |
| tree | 05345b162b8a53fe76762df7191a4d2590af10bb | |
| parent | Make ips_timeout to be usable not only with scsi xfers. (diff) | |
| download | wireguard-openbsd-7fbc6db12751ba5e79ed76b9a77a6a7aca491ff6.tar.xz wireguard-openbsd-7fbc6db12751ba5e79ed76b9a77a6a7aca491ff6.zip | |
correct an example in the manpage: after creating a new crypto volume,
it is sufficient to zero the first megabyte of the disk, not the whole
disk.
ok marco@ mpf@ rainer@ jmc@
| -rw-r--r-- | sbin/bioctl/bioctl.8 | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/sbin/bioctl/bioctl.8 b/sbin/bioctl/bioctl.8 index c0037f0bf5f..55a3ea5742c 100644 --- a/sbin/bioctl/bioctl.8 +++ b/sbin/bioctl/bioctl.8 @@ -1,4 +1,4 @@ -.\" $OpenBSD: bioctl.8,v 1.64 2009/02/22 07:46:55 jmc Exp $ +.\" $OpenBSD: bioctl.8,v 1.65 2009/03/19 13:44:46 grunk Exp $ .\" .\" Copyright (c) 2004, 2005 Marco Peereboom .\" @@ -23,7 +23,7 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.Dd $Mdocdate: February 22 2009 $ +.Dd $Mdocdate: March 19 2009 $ .Dt BIOCTL 8 .Os .Sh NAME @@ -224,10 +224,15 @@ volume: .Nm will ask for a passphrase, that will be needed to unlock the encrypted disk. -After creating a new encrypted disk, it should be zeroed with the -following command (assuming the new disk is sd3): +After creating a new encrypted disk, the first megabyte of it should be +zeroed, so tools like +.Xr fdisk 8 +or +.Xr disklabel 8 +don't get confused by the random data that now appears on the new disk. +This can be done with the following command (assuming the new disk is sd3): .Bd -literal -offset 3n -# dd if=/dev/zero of=/dev/rsd3c +# dd if=/dev/zero of=/dev/rsd3c bs=1M count=1 .Ed .Sh SEE ALSO .Xr ami 4 , |