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      STACKER NOTE                                         STACKER NOTE
                  STACVOL FILE TOO FRAGMENTED DURING SETUP
                  (Applies to Stacker for OS/2 & DOS ver 4)
      STAC FAX  64103 (1/95)
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      BACKGROUND
      
      A Stacker drive is actually a file called STACVOL.XXX located on
      the uncompressed drive. Every time Stacker mounts a Stacker
      drive, it counts the number of fragments in the STACVOL file.
      Stacker cannot mount a Stacker drive if the STACVOL file has more
      than 639 fragments (noncontiguous blocks). To make sure the
      STACVOL file is stored in the fewest number of fragments, Stacker
      Setup runs a special version of Norton Speedisk to optimize the
      uncompressed drive.
      
      Why would the STACVOL file then be too fragmented?
      
      If Setup was interrupted before or during the running of
      Speedisk, or if there are very many immovable clusters (hidden or
      unreadable files) on the disk, the STACVOL file will be too
      fragmented.
      
      SOLUTION
      
      Correcting the problem involves several steps:
      
         - Deciding which disk has the problem
         - Viewing STACKER.LOG on its uncompressed disk
         - Removing files that couldn't be copied
         - Completing the Stacker drive setup
           
      To decide which disk has the problem:
      
       1.  Restart your system.
       2.  Notice the error message Stacker displays. It may look like:
           E:=C:\STACVOL.DSK (STACVOL file too fragmented) (not
           mounted)
           Press any key to continue...
      
           In this example, the Stacker drive was not mounted, so drive
           C remains uncompressed. Setup created the file STACKER.LOG
           in the root directory of drive C. It contains a list of file
           problems that were encountered during Setup.
           
      To view STACKER.LOG:
      
      You can view STACKER.LOG on the screen or print it. To view it on
      the screen:
      
       1.  Insert the Stacker for OS/2 & DOS Disk 1 in drive A or B.
       2.  Use the appropriate drive letter and type:
           ED C:\STACKER.LOG <Enter>
       3.  Use the up and down arrow keys to scroll through the file.
       4.  Notice any files listed as "hidden--not copied" and "read
           error-not copied." You will have to get rid of these files
           until you solve this problem (you can put them back
           afterwards).
           
      To print STACKER.LOG:
      
       1.  Press Esc to exit the ED editor.
       2.  Print the file using a text edit such as DOS' EDIT, or type:
           COPY C:\STACKER.LOG LPT1 <Enter>
              
      To remove files that couldn't be copied:
      
      Handling "Read error--not copied" files: Setup encountered read
      errors when it tried to compress these files. They may have
      problems. You can try to copy them to another disk. If you can't,
      you'll have to delete them and restore them later from any backup
      disks you may have.
      
      Handling "Hidden--not copied" files: Setup was not able to move
      these files. At this point, you can't just unhide them; you have
      to copy them to another disk and delete them from the
      uncompressed disk.
      
      For each hidden file listed in STACKER.LOG:
      
         - Remove any system, hidden or read only attributes set on the
           files.
         - Copy the file to another disk and delete it from the current
           location.
           
      To change the attributes of a file (such as C:\EXAMPLE.DOC):
      
       1.  Insert Stacker for OS/2 & DOS Disk 1 into drive A or B.
       2.  Use the appropriate drive letter and type:
           SATTRIB -S -H -R C:\EXAMPLE.DOC <Enter>
           You will see a message saying one file changed.
           
      To back up the file:
      
       1.  Copy it to another disk by typing:
           COPY C:\EXAMPLE.DOC B: <Enter>
           where EXAMPLE.DOC is the name of the file and B: is the
           destination of the copied file.
       2.  Delete it from the original location by typing:
           DEL C:\EXAMPLE.DOC <Enter>
      In addition, you'll have to change attributes on several OS/2
      files before continuing. These were changed while Setup was
      running; they will be reapplied later. You'll have to change the
      attributes on files EA DATA. SF and WP ROOT. SF. If the drive
      being compressed is an OS/2 boot drive, you'll also have to
      change the attributes of the OS/2 boot files.
      
      To change the attributes of the OS/2 files:
      
       1.  Change to the appropriate drive and type DIR /AH to display
           the hidden files. Note the names of the files listed. If the
           version of DOS you booted into doesnt recognize the /AH
           switch, insert Stacker Disk # 2, go to that drive and type
           SDIR /H /P d: (where d: is the drive letter in question.)
           Note the names of the files with the word HIDDEN displayed.
       2.  Use the appropriate drive letter and use the SATTRIB program
           on Stacker disk # 1 to unhide the files. For example, type
           these commands:
           SATTRIB -S -H -R C:\EA?DATA.?SF <Enter>
           SATTRIB -S -H -R C:\WP?ROOT.?SF <Enter>
           SATTRIB -S -H -R C:\OS2BOOT <Enter>
           Do this for each hidden file. Note the use of the question
           mark. OS/2 uses spaces in some filenames. Since DOS doesn't
           recognize the space, use the "?" wildcard character.
           
      To complete the Stacker Setup process.
      
       1.  Insert Stacker for OS/2 and DOS Disk 1 into drive A or B.
       2.  Type A: or B: to switch to that drive.
       3.  To finish creating the Stacker drive, type:
           CREATE C:\STACVOL.DSK /P <Enter>
      The CREATE program completes the creation of the Stacker drive,
      including running Norton Speedisk. At the end, Stacker applies
      the attributes to the OS/2 files again. After CREATE is finished,
      remove any disks from the floppy drives and restart your
      computer. Your Stacker drive will mount correctly.
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      Copyright 1995 Stac Electronics
