Re: [TCLUG:6042] swap > 128M

[whisper@bitstream.net]

On Tue, May 18, 1999 at 12:17:34PM -0500, Christopher Reid Palmer wrote:
> On Sun, 16 May 1999, Nate Carlson wrote:
> 
> > Hmmm, that's odd. I know 2.1.x supported it out of the box... I had a
> > 512mb swap file running fine once. Could be they decided to drop the
> > feature..
> 
> Is there any chance you only *thought* it was seeing all 512MB, when in
> reality it was just using the first 128MB? I've never heard of any
> version
> of Linux understanding swap partitions greater than 128MB in size.
> 

linux 2.2.x removes the 128mb limit upon the swap file.  in order for you to
take advantage of this you need the new util-linux, which contains the new
mkswap, and after this, get the new mount.  here is a blurb from the 2.0.x to
2.2.x upgrade file ...

http://kernelnotes.org/change22.html

-------

Util-linux (including mount) 

Among other changes made in the development of Linux kernel 2.2, the 128 meg 
limit on IA32 swap partition sizes has been eliminated. To use larger swap 
spaces, you need the new mkswap found in util-linux. You also need to upgrade 
util-linux to get the latest version of mount. 

Partitions on 2048 byte sectored media (certain magneto opticals most 
prominently) were broken throughout the whole of 2.1 kernel series, meaning 
that you will be unable to use 2.1-partitioned media on Linux 2.2. This is not 
a 2.2 bug - 2.2 finally does the right thing!  [If you have to interchange 
media between Linux 2.1 and 2.2, your best bet is to not use partitions at all 
but create the filesystem on the raw device (e.g.  /dev/sda) instead. This is 
also known as the superfloppy format.] 

To properly create partitions on 2048 byte sectored media with Linux 2.2, be 
sure to use no less than fdisk version 2.9i and invoke fdisk using '-b 2048' 
as an option. 

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