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Re: Cygwin on FAT16 is very huge !
- From: "Doug Wyatt" <dwyatt at sunflower dot com>
- To: cygwin <cygwin at cygwin dot com>
- Date: Mon, 2 Sep 2002 16:00:25 -0500
- Subject: Re: Cygwin on FAT16 is very huge !
- Reply-to: dwyatt at sunflower dot com
Previous replies have noted the reason for the disparity in disk
space usage. It was also correctly pointed out that FAT32 is a
better choice on W98.
To add, FYI, FAT16 partitions are limited to 65,525 clusters, so the
cluster size is roughly the partition size divided by 64k. On a partition
from 1 to just slightly less that 2GB, that gives 32k / cluster. Go to a
full 2GB or greater and you're going to have 64k clusters (like anyone
would want to do that ;). This MS article explains FAT16 cluster size:
A windows tool, Treesize, can tell you the actual amount of wasted
space. There's a free version of treesize available at
It's a useful compliment to du and df.
On 2 Sep 2002 at 6:54, Randall R Schulz wrote:
> Do you need a complete Cygwin installation? If not, trim down the set of
> installed packages.
> The allocation granularity on FAT volumes depends on the volume size. The
> only way you can influence the loss due to internal fragmentation is to
> lower the volume size. Offhand, I don't know the break-over points at which
> the allocation unit size changes or the formula by which it is determined.
> No doubt that information can be found on line.
> Randall Schulz
> Mountain View, CA USA
> At 06:18 2002-09-02, you wrote:
> >Can anyone explain the following strange thing :
> >When installing Cygwin (downloaded from ftp.funet.fi on 08/23/2002) on a
> >NTFS partition (W2000 box), the full release (all packages installed)
> >occupies about 700+ MO. When installing it on a FAT16 partition (W98
> >box), the same full release uses 1.8+ GO !
> >I need to install the full release in less than 1 GO. How can I do that ?
> >Thanks in advance for any help or suggestion,
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