OSINPART - UNABLE TO SET A PARTITION INSTALLABLE IN FDISK 
DURING INSTALLATION
06/26/96

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  Unable to Set a Partition Installable in FDISK During Installation
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Please Read Entire Document for Full Explanation of Procedures
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DESCRIPTION

When you choose Advanced Installation at the Welcome screen and specify
a different drive, you are taken to FDISK and are unable to set a 
partition installable.

RESOLUTION

There is a 1024-cylinder limit on startable partitions on most drives. 
The FAT file system also imposes a 2 G limit on partition size. If a 
system's hard drive has 1 M cylinders, then any startable partition is 
limited in size to 1 G under both the FAT and HPFS file systems. If the 
hard drive has 4 M cylinders, then the startable partition can be as 
large as 2 G under FAT and 4 G under HPFS. In current versions of OS/2, 
non-startable partitions can be as large as 2 G under FAT, and 64 G 
under HPFS.

If OS/2 is to be installed on a drive with 1024 or more cylinders, you 
should do one of the following:

1. Partition the drive so that no startable partition extends
   beyond the 1023rd cylinder.

2. Activate sector translation if it is available, or format the
   drive so that it is less than 1024 cylinders

3. Obtain a utility, such as OnTrac's Disk Manager, that provides
   dynamic sector translation under OS/2 so that the number of 
   cylinders is effectively reduced.

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