TITLE:              Can't Convert DR DOS SuperStor non-boot drive
DOCUMENT ID:        TID020883
DOCUMENT REVISION:  1
DATE:               14APR95
ALERT STATUS:       Yellow
README FOR:         NA

NOVELL PRODUCT and VERSION:
NOVELL DOS 7.0

ABSTRACT:
NA

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SYMPTOMS:

Unable to Convert DR DOS 6 SuperStor non-boot drive to ND7 Stacker. 
The conversion process returns an error 'trying to get free space
from host drive' and the conversion process halts.

TROUBLESHOOTING:

User has DR DOS 6.0 with SuperStor.  They SuperStor'd a D: Drive
choosing to compress the entire drive. SuperStor will compress the
entire drive leaving 0 bytes free on the host, which SuperStor will
do to a logical drive in an extended partition or 2nd physical hard
drive.  When ND7 is installed and a conversion to Stacker is
attempted, the conversion process returns an error 'trying to get
free space from host drive' and the conversion process halts. In
order to convert a compressed drive to Stacker about 1MB is required
on the host drive.

SOLUTION:

User has 2 options:

OPTION 1:
Leave on the DR DOS SuperStor.  The CHKDSK and DISKOPT utilities are
backward compatible.  This option will work ONLY IF you have not
converted other SuperStor Volume(s) to Stacker. 

WARNING: The Stacker conversion process will convert all SuperStor
Volumes  that it can. Example:

C: boot partition compressed (SuperStor will leave about 512k free on
host drive if entire boot drive is compressed,) and a logical drive
in an extended partition or 2nd physical drive (drive d:) entirely
compressed with 0 bytes free on host drive. 

The Stacker compression conversion recognized that the drives were
SuperStor'd and the option to convert was selected.  The C: boot
drive was converted without problem but the drive d: with 0 bytes
free was not.  No error messages were returned.  On reboot only  the
newly converted Stacker C: drive was accessable.  The D: drive
contained only the SSPARTSS.ADD file with 0 bytes free.  Their only
option at this point is: Load the SuperStor Config.sys  drivers,
reboot, backup SuperStor'd data, delete the SuperStor  drive, remove
the SuperStor drivers from config.sys, reboot,  create a Stacker
drive and restore data.

OPTION 2:
Load the SuperStor Config.sys drivers, reboot, backup SuperStor'd
data, delete the SuperStor drive, remove the SuperStor drivers from
config.sys, reboot, create a Stacker drive and restore data.

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