Path: utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!uunet!spock!suwalski
From: suwalski@spock (Woody Suwalski)
Newsgroups: comp.sys.ibm.pc.misc
Subject: Re: Adjusting Cluster Size
Message-ID: <4036@chengb>
Date: 31 Jul 90 13:59:54 GMT
References: <3241@nisca.ircc.ohio-state.edu>
Reply-To: suwalski@chengb (Woody Suwalski)
Organization: Mitel. Kanata (Ontario). Canada.
Lines: 17

In article <3241@nisca.ircc.ohio-state.edu> barthe@hpuxa.ircc.ohio-state.edu (Olivier Barthelemy) writes:
>
>For some reason, the 10-meg partition has 4K cluster, while the 30meg one has
>2K clusters. Since my friend is using a lot of very small (X00 bytes) files,
>he needs to get 2K clusters on the 10meg Partition.
>
1. Partitions below 15.XMb are formated by DOS as 12-bit FAT, 4kb/cluster.
2. I fooled DOS with the following:
   Modify the SYST IND in the Master Boot sector (Partition Table)
   Replace there 01 (12 bit) with 04 (16 bit FAT)
   Similar operation for BOOT SECTOR of the partition.
   There you need to specify the cluster size (DOS 3.1 does not like to go
    beneath 2k clusters, other allowed 1k as well).
   Reformat the disk.... and thats it....


Woody