diff options
Diffstat (limited to 'sbin/newfs/newfs.8')
| -rw-r--r-- | sbin/newfs/newfs.8 | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/sbin/newfs/newfs.8 b/sbin/newfs/newfs.8 index 875f915..b55cd34 100644 --- a/sbin/newfs/newfs.8 +++ b/sbin/newfs/newfs.8 @@ -36,7 +36,7 @@ .Nd construct a new UFS1/UFS2 file system .Sh SYNOPSIS .Nm -.Op Fl JNUln +.Op Fl EJNUln .Op Fl L Ar volname .Op Fl O Ar filesystem-type .Op Fl S Ar sector-size @@ -59,10 +59,6 @@ The .Nm utility is used to initialize and clear file systems before first use. -Before running -.Nm -the disk must be labeled using -.Xr bsdlabel 8 . The .Nm utility builds a file system on the specified special file. @@ -78,6 +74,14 @@ has numerous options to allow the defaults to be selectively overridden. .Pp The following options define the general layout policies: .Bl -tag -width indent +.It Fl E +Erase the content of the disk before making the filesystem. +The reserved area in front of the superblock (for bootcode) will not be erased. + +This is a relevant option for flash based storage devices that use +wear levelling algorithms. + +NB: Erasing may take as long time as writing every sector on the disk. .It Fl J Enable journaling on the new file system via gjournal. .It Fl L Ar volname |
