Subject: Re: df -k does not equal sector size
To: Caffeinate The World <mochaexpress@yahoo.com>
From: Simon Burge <simonb@wasabisystems.com>
List: netbsd-users
Date: 04/11/2003 14:14:43
Caffeinate The World wrote:
> I've had this system for a while and it's been running fine. I was
> going to add another disk tonight and went back over the disklabel of
> the old HD. I noticed something strange.
>
> Let's look at partition a:
>
> 8 partitions:
> # size offset fstype [fsize bsize cpg/sgs]
> a: 1024000 0 4.2BSD 1024 8192 16
> b: 1024000 1024000 swap
> c: 17783112 0 unused 0 0
> d: 10485760 2048000 4.2BSD 1024 8192 16
> e: 5249352 12533760 4.2BSD 1024 8192 16
>
> # df /
> Filesystem 1K-blocks Used Avail Capacity Mounted on
> /dev/sd0a 495655 285351 185521 60% /
>
> 1024000 sectors * 512 bytes/sector = 524288000 bytes
> 524288000 bytes / 1024 bytes/kilobytes = 512000 kilobytes
>
> 512000 != 495655
>
> What am I missing?
You have 495655 blocks for data. The rest are used up by superblocks,
inodes, etc.
Simon.
--
Simon Burge <simonb@wasabisystems.com>
NetBSD Support and Service: http://www.wasabisystems.com/