TECHNICAL INFORMATION DOCUMENT

TITLE:              PTF199 - Patch for UFS/SFS mount PANIC
DOCUMENT ID:        TID300135
DOCUMENT REVISION:  B
DATE:               25JAN95
ALERT STATUS:       Yellow
INFORMATION TYPE:   Symptom Solution
README FOR:         PTF199

NOVELL PRODUCT and VERSION:
UnixWare 1.1

ABSTRACT:

This file contains PTF199 - Patch for UFS/SFS mount PANIC. This patch 
installs an updated "sfs" driver with corrected mount routines shared 
by the UFS and SFS file systems.  File systems in which the superblock 
is larger than the file system block size are now handled correctly 
and successfully mounted.  This patch is recommended for UnixWare 1.1.1, 
UnixWare 1.1.2, UnixWare 1.1.3.

SYMPTOM

The symptom is a PANIC, most often in the bcopy() routine though it 
can occur elsewhere as well.  It occurs during the mount of a UFS/SFS 
file system where the combination of device characteristics and file 
system parameters results in a superblock size that is larger than 
the file system block size.

SOLUTION

Apply the ptf199 file.

Installation Instructions:

DATATYPE: datastream

1.  Download the ptf199.Z and ptf199.txt files to the /tmp directory
    on your machine.

2.  Read the release notes contained in this file and follow the
    instuctions to add the packages to your system.

3.  Now become root, uncompress the file and add the package to your 
    system using the following commands:

        $ su
        # uncompress /tmp/ptf199.Z
        # pkgadd -d /tmp/ptf199 ptf199

Solution Specifics

General Description.
-------------------

This patch installs an updated "sfs" driver with corrected mount 
routines shared by the UFS and SFS file systems.  File systems in 
which the superblock is larger than the file system block size are 
now handled correctly and successfully mounted.


New Features.
------------

None

Software Notes and Recommendations.
----------------------------------

This patch should be installed on all UnixWare 1.1.1, 1.1.2 or 1.1.3 
systems. If Update 1.1.2 or 1.1.3 is installed after installing this 
patch, it must be reinstalled (it is recommended, but not required, 
that this patch be removed before installing any Update, then 
subsequently reinstalled).

Hardware Notes and Recommendations.
----------------------------------

This PTF is targeted for the i386, i486 and Pentium CPU's.

Installation Instructions.
-------------------------

This PTF consists of 1 3.5 inch floppy.  Insert the floppy into the drive and,
while logged in as root, type

     pkgadd -d diskette1

and follow the instructions output by pkgadd.