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      STACKER NOTE                                         STACKER NOTE
                            MOUNT ID WRITE ERROR
              (Applies to Stacker 3.0 & 3.1 for Windows & DOS)
      STAC FAX  3703 (01-27-1994)
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      BACKGROUND
      
      If the Stacker device driver cannot successfully write the “mount
      ID” to a STACVOL file, you will get the error message "Mount ID
      Write Error."  Two situations can cause this error:
      
       I.  The STACVOL file resides on a Hard Card whose driver loads
           after Stacker attempts to mount the STACVOL file.
       II. The STACVOL file resides on a drive with media errors.
           
      This document is organized into two procedures.  Complete
      Procedure I if the error occurs on a Hard Card.  Otherwise,
      complete Procedure II.
      
      PROCEDURE I:  HARD CARD DRIVER LOADS AFTER STACKER
      
      If the "Mount ID Write Error" occurs on a Hard Card, then
      complete the appropriate steps for your version of Stacker.
      Otherwise, complete Procedure II.
      
                         HARD CARDS AND STACKER 3.0
                                      
      
      If you use Stacker 3.0, ensure that the Hard Card device driver
      loads before the Stacker device driver in the CONFIG.SYS file:
      
       1.  Use any text editor to edit your CONFIG.SYS file.
       2.  If the Hard Card device driver appears after the Stacker
           device driver, move it before the Stacker device driver
           line.  Otherwise, complete Procedure II.
       3.  Save the file and exit to DOS.
       4.  Restart your computer.  The compressed Hard Card should
           mount properly without write protection.
           
                         HARD CARDS AND STACKER 3.1
                                      
      
      If you use Stacker 3.1, it is not possible to load the Hard Card
      device driver before the pre-loading Stacker device driver.  For
      details on this error with Stacker 3.1, refer to Stacfax 31020.
       
      PROCEDURE II:  THE STACVOL FILE RESIDES ON A DRIVE WITH MEDIA
      ERRORS
      
      If you have completed Procedure I and the "Mount ID Write Error"
      persists, or if the error is occurring on a hard disk that is not
      a Hard Card, then a physical hard drive flaw is the most likely
      cause of the error.
      
      To detect and correct damaged or unreadable areas of your hard
      drive, you need to run a disk repair utility, such as Norton
      Utilities Calibrate, PC Tools DiskFix, or SpinRite.  See document
      # 3404, "Using Surface Scan Utilities with Stacker," for more
      information.
      
      Persistent errors may indicate a hardware failure in the hard
      drive controller, the drive controller cable, the motherboard, or
      the hard drive itself.  Have a qualified repair technician check
      your system.
      
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      Copyright 1994 Stac Electronics