On Tue, Jan 18, 2011 at 07:01:56PM +0300, Vadim Zhukov wrote:
> Index: newfs.8
> ===================================================================
> RCS file: /cvs/src/sbin/newfs/newfs.8,v
> retrieving revision 1.68
> diff -u -p -r1.68 newfs.8
> --- newfs.8 21 Mar 2010 07:51:23 -0000 1.68
> +++ newfs.8 18 Jan 2011 15:47:45 -0000
> @@ -218,6 +218,13 @@ With this option,
> will not print extraneous information like superblock backups.
> .It Fl S Ar sector-size
> The size of a sector in bytes (almost always 512).
> +Alternatively
> +.Ar sector-size
> +may instead use a multiplier, as documented in
> +.Xr scan_scaled 3 .
> +.Ar sector-size
> +should be 512 or a multiple of it because the kernel operates
> +512\-byte blocks internally.
just to tweak a little, i'd suggest:
.Ar sector-size
should be a multiple of 512,
since that is how the kernel works internally.
that "since that..." may need tweaked if it's not exactly correct.
> A sector is the smallest addressable unit on the physical device.
> Changing this is useful only when using
> .Nm
> @@ -227,14 +234,19 @@ created (for example on a write-once dis
> Note that changing this
> from its default will make it impossible for
> .Xr fsck 8
> -to find the alternate superblocks if the standard superblock is
> -lost.
> +to find the alternate superblocks automatically if the standard
> +superblock is lost.
> .It Fl s Ar size
> -The size of the file system in sectors.
> -This value is multiplied by the number of 512\-byte blocks in a sector
> -to yield the size of the file system in 512\-byte blocks, which is the value
> -used by the kernel.
> -The maximum size of an FFS file system is 2,147,483,647 (2^31 \- 1) of these
> +The size of the file system in sectors (see
> +.Fl S ) .
> +Alternatively
> +.Ar size
> +may instead use a multiplier, as documented in
> +.Xr scan_scaled 3 ,
> +to specify size in bytes; in this case
s/size/a size/
> +.Ar size
> +is rounded up to the next sector boundary.
> +The maximum size of an FFS file system is 2,147,483,647 (2^31 \- 1) of
> 512\-byte blocks, slightly less than 1 TB.
> FFS2 file systems can be as large as 64 PB.
> Note however that for
otherwise this reads ok to me.
jmc
