_________________________________________________________________ STACKER NOTE STACKER NOTE MOUNT ID WRITE ERROR (Applies to Stacker 3.0 & 3.1 for Windows & DOS) STAC FAX 3703 (09/20/93) _________________________________________________________________ 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. | |Instead, you must modify your configuration files STACKER.INI and| |AUTOEXEC.BAT so that the Hard Card mounts in the AUTOEXEC.BAT. | | | |The following steps show you what to do. In our example, drive | |D: is the Hard Card. Substitute your Hard Card's drive letter | |for D: when completing these steps. | | | |1. Determine the swapped drive letter for your Hard Card. At | | the DOS prompt, type: | | | | stacker | | | | It displays a drive map similar to this: | | | | Stacker drive map: | | Drive A: was drive A: at boot time | | Drive B: was drive B: at boot time | | Drive C: was drive C: at boot time [E:\STACVOL.DSK =314.7MB]| | Drive D: was drive D: at boot time [F:\STACVOL.DSK = 89.4MB | | --Write Protected]| | Drive E: was drive E: at boot time | | Drive F: was drive F: at boot time | | Total of 1 available replaceable drive(s) | | | | The STACVOL file associated with drive D: indicates the Hard | | Card's swapped drive -- in this example it is F. Jot down | | the swapped drive letter for your Hard Card; you will need | | it in step 3. | |2. Edit the STACKER.INI file. Editing instructions are in the | | Stacker 3.1 supplement and in the Stacker README.TXT file. | | The STACKER.INI file for our example looks like this: | | | | /P=1 | | /DIR=C:\STACKER\ | | C:\STACVOL.DSK,SW | | D:\STACVOL.DSK,SW | | | |3. Upon entering the editor, your cursor will be positioned at | | the beginning of the first line. From this position, type: | | | | /SW=DF | | | | Where D is the drive letter of your Hard Card and F is the | | drive with which it swaps (determined in step 1.) | |4. Move your cursor to the beginning of the line | | | | D:\STACVOL.DSK,SW | | | | where D is the drive letter of your Hard Card. Press CTRL-K | | to delete the line, then type an * in its place. | |5. Our STACKER.INI file looks like this now: | | | | /SW=DF | | /P=1 | | /DIR=C:\STACKER\ | | C:\STACVOL.DSK,SW | | * | | | |6. Save the file by pressing CTRL-Z. | |7. Use a text editor to insert the following command into your | | AUTOEXEC.BAT file. It should appear immediately before the | | Stacker CHECK /WP command: | | | | C:\STACKER\STACKER D:=F:\STACVOL.DSK | | | | Where D is the drive letter of your Hard Card and F is the | | drive with which it swaps (determined in step 1.) | | | |8. Restart your system. The compressed Hard Card should mount | | properly without write protection. | +-----------------------------------------------------------------+ 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 _________________________________________________________________ Copyright 1993, Stac Electronics