ICD PRO

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Readme of ICD Pro

ICD AdSCSI ST host adapter software update
------------------------------------------

IMPORTANT: READ THE "WHATS.NEW" FILE!!!

This file documents the ICD AdSCSI ST host adapter software.
These utilities are packaged with all ICD ST Hard Drive Systems
and ICD ST host adapters and WILL ONLY WORK WITH AN ICD HOST
ADAPTER in your system (except the PRO level, which will work
with or without an ICD host adapter).  They are all Copyright 
1987-1994 by ICD,Inc.

Companies using this software with their products must include an
ICD ST host adapter as part of that product, or have licensed the
PRO level of ICD software, or they will be in violation of United 
States and/or International Copyright Laws!

If you have any questions:

     ICD, Inc.
     1220 Rock Street
     Rockford, IL  61101-1437

     Voice:  (815) 968-2228
     BBS:    (815) 968-2229
     FAX:    (815) 968-6888

The ICD BBS always has the latest revisions of the ICD ST host
adapter software (regular version only), as well as various 
handy utilities, etc., all yours for the downloading.  Our BBS 
has a US Robotics 9600 baud HST modem and is usually up 24 hours 
a day.  Support and updated files are also available on GEnie 
(ICD or M1220) and CompuServe (76004,1600).

Suggestion: make a printed copy of this file for future 
reference.

+---------------------------------------------------------------+

MANUAL UPGRADES:

This documentation only includes changes made to the ICD AdSCSI
ST host adapter software since the latest manual was printed.  
The latest manual has the number 36-90 in the lower-right corner
of the back cover.  If you would like to receive the latest 
manual, send $15 to ICD.  Funds MUST be in US dollars drawn on a
US bank.

SOFTWARE UPGRADES:

There are 3 levels of ICD ST software now in distribution 
(effective with version 6.0.0 and later of ICDBOOT):  

   (1) The PRO level, which installs on all ST, TT, and Falcon
       computers regardless of whether an ICD host adapter is 
       found.  The PRO level supports Floptical¾ drives.  This 
       level is available ONLY for purchase.  To obtain updates, 
       original disk must be returned to ICD with a $15 fee. 
       Funds MUST be in US dollars drawn on a US bank.  The 
       PRO level software is NOT AVAILABLE as an upgrade to any
       other level of ICD software.

   (2) The LINK level, which supports Floptical¾ drives.  This
       level is shipped only with the Link host adapter.  To
       obtain updates, original disk must be returned to ICD with
       a $15 fee.  Funds MUST be in US dollars drawn on a US bank.

   (3) The regular level.  Floptical¾ drives are not supported.  
       Updates are available from ICD on disk for $15 (original disk
       not required), or are downloadable on the ICD BBS, GEnie, 
       or CompuServe.  Funds MUST be in US dollars drawn on a US
       bank.
+---------------------------------------------------------------+

Changes to the ICD AdSCSI ST host adapter software since the
latest manual was printed:

-    3 levels of ICD software are now in distribution.  These are:
     PRO, LINK, and STHA (or regular) levels.  See notes on ICDBOOT 
     below.

-    The PRO and LINK levels of ICD software support Floptical¾ drives.

-    CHANGE IN FLOPTICAL¾ DRIVE SUPPORT: (Link and Pro level only)
     Previous versions of ICDFMT and ICDBOOT only allowed you to
     set up the 21 Mb diskettes according to the Insite Peripherals
     standard for information exchange between different computer
     systems.  These disks would not auto-boot and were not useable
     under TOS 1.0 - 1.2.  Because of popular demand, you are now
     given the choice in ICDFMT and INSTALL to set up the 21Mb
     diskettes either with the Standard (Insite Peripherals) or Atari
     format.  If you choose Atari format, the diskettes are useable
     with all TOS versions.  They can also be made to auto-boot if
     the the drive is the lowest ID in the system.   
 
-    A new hard disk installation program is included.  INSTALL.PRG is
     intended for the user who is totally unfamiliar with hard disks
     and wants an easy installation.  The program will automatically
     format the disk if necessary.  It will verify sectors, partition 
     the disk, sets up the auto-boot, and create a DESKTOP.INF file 
     and AUTO folder on partition C.  There are no user-selectable
     parameters.  Several warnings are given allowing the user to quit.
     After that, all data on the disk is destroyed.
     
     This program is also ideal for dealers to set up hard disks for
     their customers.  If more than one hard disk is connected, the user
     must choose which one to install.  After that, this disk is set
     up AS IF it is the only disk in the system.  In other words, the
     installed disk may then be taken to another system and plugged in.
     It will auto-boot and show a desktop with the correct icons for
     the number of partitions on the disk.

-    ICDFMT now optionally allows 100% Atari AHDI compatibility.
     See notes on ICDFMT for this and other changes.

-    You do not always need to run HDUTIL to install a new ICDBOOT
     on your hard drive.  If the drive is already set up to auto-boot
     all you need to do is to copy ICDBOOT.PRG to the root or main
     directory of drive C:, rename your old ICDBOOT.SYS (to .SYX) or 
     trash it, then rename ICDBOOT.PRG to ICDBOOT.SYS and reboot.

-    All programs have been tested and modified as necessary to 
     present a proper display in the Atari TT and Falcon graphics 
     modes.  Be advised, though, that any programs which didn't 
     work in the ST's low-resolution also will not work in TT 
     low-res (256 color mode) or Falcon 40-column modes.

-    Several minor bugs have been fixed.  Because of this, it is 
     advisable that you always use the latest version of the ICD 
     AdSCSI ST host adapter software.  Updates to all programs
     (except the PRO and LINK levels of ICDBOOT) are available on
     the ICD BBS, GEnie, or CompuServe.

-    STacy users, using ICD PRO software and ICDFMT, see special
     note below about determining drive size.

-    New user options on configuring ICDBOOT: (a) you can set a
     variable delay in the flush of the write cache, up to 30
     seconds.  (b) you can skip logical drives at bootup.  (c)
     you can set the software to do "retries" in case of command
     phase timeouts. 

-    In keeping with the variable write delay, FLUSH.PRG, which
     flushes the write cache to disk, is included.
     
-    STARTHD.PRG and RELOG.PRG are included for those who have
     hard disks that do not spin up automatically.

+---------------------------------------------------------------+
 
Changes to files on the distribution diskette: 
 
ADSCSI.CPX
     This is an extension for Atari's Extensible Control Panel
     (XCONTROL).  See the file ADSCSI.TXT for additional
     information.
     
BOOTFIX.TOS
     This has been updated to support drives attached to the TT
     SCSI port as well as the ACSI\DMA port.

     This version also disables Parity checking on Quantum ELS
     series 3 1/2" hard drives.  Of course, to do this, the drive
     must be connected to an AdSCSI or Advantage series host adapter.

CACHEHIT.TOS
     This program displays the effectiveness of the caches.  It 
     displays the percentage of reads which were satisfied by 
     the cache, and the percentage of writes which updated 
     entries already in the cache.  This can be used to 
     determine what cache settings are the most efficient for 
     your system.

     It's important to note that this only gives statistics for 
     the cache buffers, and not the TOS buffers.  The TOS 
     buffers are maintained by the operating system and can't be 
     checked.  The ICD AdSCSI ST host adapter manual explains 
     the TOS buffers in more detail.

CACHEOFF.PRG
CACHEON.PRG
     These programs are used to enable and disable the write
     cache function of ICDBOOT.  Users of the Supercharger PC
     emulator must turn off the write cache before running the
     Supercharger intialization program or the Supercharger will 
     NOT be able to write to the hard disk.

     Turning the cache off this way does not reduce memory usage.

CFGCBOOT.PRG
     This program configures COLDBOOT.PRG to skip selected 
     ACSI/DMA devices.  You can also add a delay to COLDBOOT so
     that it will wait up to 999 seconds to begin execution.
     See section on COLDBOOT.PRG (below) for additional documentation.

CLEANUP.PRG
     Detects and corrects structural and logical errors on GEM/BGM
     partitions.

     This is included only on the PRO level version, and is also
     available for separate purchase.

COLDBOOT.PRG
     This has been updated to support devices attached to the TT
     SCSI port as well as the ACSI/DMA port.

     Versions 1.30 and later of ICD COLDBOOT.PRG are 
     configurable to allow skipping of the ACSI/DMA ID of the
     Supercharger from Talon Technologies.  To configure COLDBOOT
     run CFGCBOOT and specify the ID(s) you wish to skip when
     doing a coldboot.  The Supercharger is normally shipped as
     ID 3.  This should only be necessary for those users who do 
     not have Quantum, Seagate, or other drives which autoboot
     upon power-up, and who are also using the Supercharger.
     
     This program now accepts a command line argument and will permanently
     change the boot partition on an auto-booting hard disk.  To use this
     feature, use "Show Info" from the File Menu to rename the file as
     COLDBOOT.TTP.  Double click on COLDBOOT.TTP, and when the dialog box
     appears asking for the Command Line, enter the letter of your desired
     boot partition.  Normally this is C through P.  Then press return,
     and the boot partition will be permanently changed; then the computer
     will be rebooted.

     To use COLDBOOT to reboot the computer, but not change the boot partition,
     just press return.

     Note that it is possible to completely suppress the loading of all
     AUTO/ACC/INF files by using COLDBOOT.TTP and choosing drive A.  Normally
     you would never want to do this, but you'll have the option.  

     Versions 2.09 and later have a user-selectable delay added.
     To see what the delay is or change it run CFGCBOOT.PRG.

COPYFIX.PRG
     This has been updated to fix a bug which caused 
     compatibility problems with several applications.  There 
     should no longer be any problems with it.

DESKTOP.PRG
     This program (formerly a desk accessory) has been updated 
     to be compatible the Atari TT and all TOS versions.  See 
     DESKTOP.DOC for a more complete explanation of changes since
     previous versions.  DO NOT RENAME DESKTOP.PRG TO DESKTOP.ACC;
     attempting to do this and installing the file as an accessory
     will give you grief.  This program is NOT designed to be 
     renamed to .ACC.

EJECT.TOS
     A program to eject diskettes from the Macintosh versions of 
     Floptical¾ drives.  This may be renamed as EJECT.TTP to run
     from a command line, or you can create a file EJECT.LST for
     it to run from.  For more information, run the program with
     no parameters, see example file EJECT.LSX, or read HDPARK.DOC.
     This program is included only with the Link and Pro levels of
     ICD software.

FLUSH.PRG
     Flushes the write cache to disk immediately.

HDPARK.TOS 
     This has been updated to support the TT SCSI port.
     This program replaces MAKEPARK.PRG.  See HDPARK.DOC for 
     complete documentation.

HDPARTS.TOS
     This program displays various statistics about each hard 
     drive partition on the system.  For the most part, this 
     information will only be of use to people who have some 
     understanding of disk structures.

HDUTIL.PRG
     New features of "Config":

     -    You can set ICDBOOT and other ICD programs to do retries
          in case of a command/select phase timeout.  (This would
          be indicated by a "Sense: $FE" or "MSense: $FE" in the
          upper right corner of your screen).  If you get this, 
          change the Retries from 0 to 1 or a higher value.  This may
          make the drive in question behave.

     -    You can skip logical drives at bootup.  This allows you
          to always have a RAM disk at drive G regardless of how
          many hard disk patitions are found.

     -    All Falcon screen resolutions are available on that
          machine.  If ICDBOOT is now configured to set a particular
          resolution, the "ST", "TT", or "FALCON" button will have
          a check mark.  You can click on the button to display a
          secondary dialog box which shows the available options 
          to change this.  If set to skip setting screen resolution
          then the "SKIP" button will have a check mark.

     -    The delay in flushing the write cache is now adjustable up
          to 30 seconds.  Bear in mind that if the computer is rebooted
          or power is lost, the unflushed data is gone!

     HDUTIL has been updated to support the TT SCSI port.  This
     affects several functions:

     -    Setting a hard disk for auto-booting will result in 
          either TT-SCSI boot sectors or ACSI/DMA boot sectors
          being written to the drive based on which port the
          drive is connected to.  If you ever move the drive to 
          the other port, you will have to reinstall the boot 
          sector with HDUTIL.

     -    If run on a Falcon 030, the auto-boot code will be
          written on the internal IDE drive.

     -    It is possible to disable scanning of any of the 16
          devices.  The device number of the TT itself will 
          never be scanned, regardless of the button settings.

     It is now easier to bypass the hard disk auto-boot and force
     bootup from floppy disk drive A.  Just hold down ALTERNATE
     only.  It is no longer necessary to hold down SHIFT-CONTROL-
     ALTERNATE.  You must use HDUTIL to reinstall the "Boot" to
     take advantage of this.

     HDUTIL now has a new feature, called "Wipe".  Previously the
     only partition-blanking feature was "Zero", which blanked
     the directories and File Allocation Tables.  The data was
     still present and a talented snoop could possibly recover
     it.  "Wipe" will zero out every sector of the partition, so
     that you do not have to be concerned about any of your 
     confidential data falling into the wrong hands.

HOST.TOS
     This is a utility to tell you what kind of host adapter you 
     have connected to each hard drive on line.   Note that it is
     not always possible to differentiate between Link, AdSCSI Plus ST,
     AdSCSI ST, and AdSCSI Micro ST host adapters.  This is
     particularly true when multiple host adapters are connected.

     It is also not possible to differentiate between one of 
     ICD's original STHA boards and one of those made by another
     manufacturer.  These items do NOT have signatures.  We are 
     merely seeing which ones do full SCSI commands and which
     ones have ICD real time clocks.

ICDBOOT.PRG
     The names of SCSI hard disk devices are now displayed as they
     are found, followed by the partitions logged from these devices
     (if any).

     The ID and LUN of a drive are displayed following a "Sense", 
     "MSense", or "Write Fail" message.  The screen under a "Disk 
     Change" message is saved and restored after the message.

     If you wish to pause ICDBOOT to read the information it prints,
     press <control-S>; press <control-Q> to restart the program.

     There are 3 levels of ICDBOOT now in distribution:
 
     (1) The PRO level, which installs on all ST and TT computers 
         regardless of whether an ICD host adapter is found.  The
         PRO level supports Floptical¾ drives.  

     (2) The LINK level, which supports Floptical¾ drives.  This
         level is shipped only with the Link host adapter.  

     (3) The regular level.  Floptical¾ drives are not supported.  

     ICDBOOT now recognizes hard disks formatted and partitioned
     with MS-DOS and FDISK on a PC.  This should simplify the transfer
     of files between PCs and STs using removable media (SyQuest, 
     etc.) much easier.  NOTE: (a) although reading and writing 
     MS-DOS partitions is supported, most of the ICD utilities 
     will not work with MS-DOS partitions. (b) very large DOS partitions
     have too many data clusters, which confuses TOS, so some DOS
     partitions will not be entered into the drive tables and will
     not be useable.

     The TIMESET function is now incorporated in ICDBOOT.  This means
     that the hard drive clock will automatically be read and the
     system clock be set upon bootup, when using a host adapter with
     real-time clock.  This option may be disabled in the "Config" 
     option of HDUTIL for those choosing to use their Mega internal 
     clock or other clock device.  It is no longer necessary to have
     ICDTIME or TIMESET in your AUTO folder to set the system clock.
     You must still run ICDTIME to install the clock handler in memory
     before using the Control Panel or other software to reset the
     clock in the ICD host adapter.

     Previous versions of ICDBOOT would always change the screen 
     to medium resolution when booting with a color monitor.  
     The resolution is now configurable with HDUTIL, allowing 
     you to boot in any ST/TT/Falcon graphics mode available on your 
     system.  As of ICDBOOT 5.5.0, you can also choose to completely
     skip any resolution change; this will be useful for those with
     1024x768 color monitors which require special driver software
     to load before any other program.

     Can now be used without an ICD host adapter present.  An 
     ICD host adapter is still required to install the booter 
     and to use the various other utilities.  The caching will 
     be disabled when running without an ICD host adapter, except
     for the PRO level of ICDBOOT.  This features does not work
     on the STacy and there is nothing to do except get the PRO
     software.

     This release now fully supports the Atari TT SCSI port as
     well as the ACSI port.  For the most part, hard drives 
     connected to the SCSI port of the TT can be treated just
     like drives connected to the ICD AdSCSI host adapter.  The
     primary difference is that the devices connected to the ICD
     AdSCSI are numbered 0-7 and the devices connected to the TT
     SCSI port are devices 8-15.  Since the TT itself is a SCSI
     device, it uses one of the device numbers.  The ICD software
     sets the TT to SCSI ID #7 (device 15), so that number is not
     available for any other devices.  Full SCSI arbitration is 
     supported on the SCSI port, which offers great potential.

     This release now fully supports the IDE drive on the Falcon.
     ICD has emulated SCSI commands for the IDE drive, which is
     treated as if it was SCSI ID 16.

     Drive letters are assigned to IDE drives, then to devices 
     attached to the SCSI port, then to the ACSI/DMA port.  This
     version allows you to skip logical drives (except drive C).
     This is configured in the "Config" option of HDUTIL.  For
     example, it would allow you to always have a RAM disk at
     drive G: regardless of how many hard drive partitions were
     on line.

     When using the ESC key to disable the booter options, only
     the caching gets disabled.  The TOS buffers are still 
     allocated so that BGM partitions can be accessed.  If you
     need the additional memory, use HDUTIL to disable the
     buffers and reboot.

     This version allows you to set the write cache flush delay
     up to 30 seconds.  Bear in mind that if a power failure
     occurs, or the computer is reset or rebooted before the
     cache is flushed, DATA WILL BE LOST.  See the "Config"
     option of HDUTIL.

     This version allows you to set DMA retries.  A few drives
     tested have exhibited the peculiarity that if they are
     not accessed for a while, the first access receives a
     Sense $FE (selection or command phase timeout).  Upon an
     immediate retry, the drive worked fine.  If you have a drive
     that gives you a lot of Sense $FE returns, or a drive that
     is not always detected, increase the DMA retries by 1.
     See the "Config" option of HDUTIL.

     A few other minor bugs were fixed, so it is advisable to 
     use this version even if you don't own a TT.

ICDFMT.PRG
     This program now allows 100% Atari AHDI-compatibility.  This
     means that you could use AHDI as your hard disk driver.  Previously
     AHDI would only pick up the first 4 partitions on the hard disk.
     Now, when you run ICDFMT, if the disk is not Atari-partitioned, then
     AHDI Compatibility is set to "on" by default.  If the disk was 
     Atari-partitioned, the program attempts to determine whether or not
     the present partitioning scheme was AHDI-compatible.  You can
     change the status of this option by clicking on the appropriate
     line of the Main Menu dialog box or by clicking on the "PARAMETERS"
     button of the Partition dialog box.  Note: if you change this option
     on a previously-partitioned disk, the only thing you will be able to
     do is to "PARTITION ENTIRE HARD DISK".  The "OLD" button will not work
     until you change the AHDI compatibility option back to its original 
     value.  The same is true of "WRITE PARTITION INFO ONLY" and "REBUILD 
     ONE PARTITION ONLY".

     Other changes:  SCSI/FAT bad sector mapping and the number of
     Verify Passes can be changed from within the Partition dialog box
     by clicking on the "PARAMETERS" button.  When going to the Partition
     dialog for the first time, you will be told if the partitions shown
     were read from disk or were calculated default values.

     Fixed:  bug in previous versions when going from 12 to 13 partitions
     on the disk (i.e. using "WRITE PARTITION INFO ONLY" and "REBUILD
     ONE PARTITION ONLY" to split one of the 12 partitions into two
     partitions.  The partition table would previously overwrite the
     boot sector of partition #1.  This now has been fixed.

     Sometimes ICDFMT will have to adjust the starting sector of a
     partition.  An alert box will tell you of this.

     This program can now format/partition IDE drives on the Falcon and 
     drives connected to the TT/Falcon SCSI port as well as the ACSI/DMA 
     port.  As with the other software, the devices attached to the SCSI 
     port are numbered 8-15 and IDE drives are numbered as if they were
     SCSI ID 16.  IDE drives cannot be low-level formatted, only partitioned.
     Other drives can be low-level formatted.

     Calculation of DEFAULT and SPLIT partitions now make one 5.00
     meg drive followed by equally-sized partitions.  This is to
     encourage you to use a small drive C.  In case your first drive
     gets destroyed (which seems to happen randomly on Atari computers,
     although it is VERY rare), you do not lose a lot of data.  This
     feature may be disabled by holding down the Alternate key while
     clicking on DEFAULT or SPLIT, or while clicking on OK in the
     dialog headed "Split into several partitions...".   However, you
     are VERY STRONGLY encouraged to use a small drive C.

     STacy users with Conner drives:  because of a severe bug in Conner
     drive firmware, it is necessary to avoid the standard methods of
     determining drive size.  You must use any ordinary ASCII text
     editor to create a file called INTERNAL.HD in the same folder as
     ICDFMT.  The first line of this file must match EXACTLY what the
     Conner drive returns when you run IDCHECK.  Spaces are important.
     The second line is the number of the LAST SECTOR on the Conner
     drive.  Here is an example of INTERNAL.HD:

     CONNER  CP3020
     41117

     If your drive is not a CP3020, you will have to determine the
     last sector through trial and error.  Start with a value large
     enough for your drive (i.e. 45000 for a 20 meg, 90000 for a 40
     meg).  Run ICDFMT and select Partition, then Partition Entire Hard
     Disk.  The program will verify the sectors and will stop when the
     Conner bug kicks in.  If the sector the program is at is a multiple
     of 32, add 31 to that value, use that value as the second line of
     INTERNAL.HD, and repeat the test.  Note that the drive will have to
     be turned off and back on again to rerun ICDFMT.  This time subtract 
     1 from the sector showing and that should be the correct value.

ICDFMT.DAT
     This file is updated from time to time to include more hard drive 
     models.  (See additional documentation below).  This file is used
     for and necessary for ST506/412 type drives only.  It is not used
     for SCSI drives; information about these drives is needed by
     asking the drive for it.  If ICDFMT.DAT is needed and not found,
     you will be able to fill in the heads and cylinders and proceed.

     To add a drive, enter the following information about your drive 
     in the EXACT same format (position sensitive) as the others 
     listed as follows:  a. The letter 'd' to indicate a drive b. The
     name of the drive c. The number of heads on the drive d. The
     number of cylinders on the drive e. The cylinder number at which
     to start using reduced write current (if not sure, then just put
     same number as # of cylinders) f. The cylinder number at which to
     start using write precomp (if not sure, then just put same number
     as # of cylinders) g. The parking cylinder (usually 40-50
     cylinders beyond the last cylinder).  h. The step rate; normally 
     2 (unless very old).  0 = 3ms non-buffered step for older drives
     (ST506) 1 = 28us buffered step rate (ST412 and maybe others) 2 =
     15us buffered step rate (Almost all new drives)

     Presently we support 98% of all hard drives and SCSI controllers
     that can be used on the Atari ST.  Some may not work on the ST at
     all.  If in doubt, try it, or you can call or write our technical
     support department.

ICDTIME.PRG
     Must be installed in memory before attempting to permanently set
     the clock in the ICD host adapter.

ICDTRAPS.PRG
     ICDBOOT 6.2.0 (and newer) has a new feature.  It now installs trap 
     handlers which allow the loading of AUTO folder programs, desktop 
     ACCessories, and DESKTOP.INF/NEWDESK.INF only from the selected boot 
     partition.  It allows the creation of DESKTOP.INF/NEWDESK.INF only on 
     the selected boot partition.

     The boot partition is the partition selected in HDUTIL when setting
     the hard disk auto-boot.  It was always our INTENT to allow you to
     run the AUTO folder and load ACCessories from this boot partition.
     However, in practice, all this meant was that the AUTO folder was run 
     from that particular partition.  ACCessories and desk INF files were 
     always loaded from drive C.  This "feature/bug" of TOS meant that, if 
     an ACCessory bombed during its loading, that the computer would go into 
     an endless auto-booting loop.  Also if the desk INF file was corrupted, 
     a blank desktop might result, or possibly an auto-boot loop, or one might
     not be able to execute PRG files, or some other weirdness.  Often some 
     tricks were necessary to sneak past some of these problems.

     Now, since ICDBOOT's trap handlers are installed whenever auto-booting 
     from any hard drive partition (except C) or when running from an AUTO
     folder (except on C), the loading of drive C files is no longer a
     problem.  Files will be loaded ONLY from the boot partition; and if
     there are no AUTO folder programs, ACCessories, or desk INF files, 
     NONE will be loaded.

     If auto-booting, ICDBOOT also allows you to select a boot partition "on 
     the fly" by pressing any key from A to P when you see the ICD logo 
     displayed on the screen.  Thus, you could have a different set of AUTO 
     folder programs, ACCessories, and a desk INF file on each partition, and
     these are loaded according to the boot partition you select.

     As before, the "normal" or "default" boot partition is set in HDUTIL
     under the "Boot" option.  (This is the partition which is loaded from
     if no key is pressed during ICDBOOT execution).  It is now possible to 
     permanently change the default boot partition through COLDBOOT.PRG;
     see notes below.

     When you do a "Save Desktop" from the Options Menu, the desk INF file
     is now saved to the current boot partition.  (Formerly it was always
     saved to drive C or drive A only).  
 
     The current Autoboot Partition or Auto Folder Partition is displayed 
     by ICDBOOT as part of its "Current driver settings" configuration data:

        1. If you auto-boot from the hard disk without pressing any key the
           "default" boot partition is shown.

        2. If you auto-boot from the hard disk and press a key to indicate 
           a valid hard drive partition then your chosen boot partition is 
           shown.

        3. If you auto-boot from the hard disk, and if you press a key to 
           choose a boot partition, and the key pressed is NOT a valid 
           partition (example: you have 4 hard disk partitions, C through F,
           and you press M) then the Autoboot Partition will be shown as 
           "n/a" and boot will proceed as though drive C was your boot 
           partition.  

        4. If you auto-boot from the hard disk, and if you press a key to 
           choose a boot partition, and the key pressed is A (or B, if you 
           have two floppy disk drives, then the Autoboot Partition will be
           shown as "n/a" but the trap handlers will install and force 3
           loading from drive A (or B).

        5. If you have used COLDBOOT.TTP and entered A as your command line
           parameter then the Autoboot Partition will be shown as "Suppressed".
           See notes on COLDBOOT below.

     There is now a 3 second delay to allow you to read the ICDBOOT "Current
     driver settings" configuration data.  The delay may be cancelled by 
     pressing any key.  If control-S is pressed execution halts until any
     other key is pressed.  This allows more time to read the configuration.

     The ICDBOOT trap handlers may be permanently disabled or re-enabled
     through the use of ICDTRAPS.PRG, now included on the distribution disk.         disk.

     Constraints and possible problems with the ICD trap handlers:

       1.  If you have chosen a partition other than C for your boot partition,
           and you then attempt to copy a desk INF file from one partition to
           another through the GEM desktop, the copy will fail.  The file
           create is automatically forced to the current boot partition.  To
           copy a desk INF file, do a "Show Info" from the File Menu, change
           the INF to INX, then copy the file as before, and finally  rename
           it from INX to INF.  Or you can load it into a text editor  and do 
           a "Save As" to the new drive.  Or you can use a program such as 
           MaxiFile from Codehead to do the copy.  Or you can reboot choosing
           drive C for the new boot partition, and as trap handlers are not
           installed the copy will succeed.  This problem should seldom be a 
           hindrance.

       2.  MinT does not get along with ICDBOOT's trap handlers; it appears
           to detect a problem in TOS.  Thus, you must install MinT only
           on drive C.  Since the ICDBOOT trap handlers are not installed
           when using drive C for the boot partition, MinT does not detect
           any problems and will install normally.
         
       3.  ICDBOOT's trap handlers force the loading of all files from the
           boot partition.  The ONLY exception is AUTO folder programs.  The
           programs themselves are forced to load from the boot partition.
           However, if these programs load data, configuration, etc., files,
           these are not forced to be from the boot partition.  All ACCessories
           and the desk INF file and any ACCessory's data, resource, configuration,
           etc. files are forced to load from the boot partition.  So if you
           have an ACCessory that reads a configuration file, a resource file, 
           a data file etc., this file MUST be present on the current boot 
           partition or it will not be found.

           This "forced" loading stops when the desktop is displayed, or
           when an auto-booting application runs.

       4.  This feature may not work with TOS 1.0 and 1.2; it may also not
           work correctly with some applications and accessories.

    Advantages of the ICDBOOT trap handlers:

       1.  You can have a separate set of AUTO folder programs, ACCessories,
           and DESKTOP.INF/NEWDESK.INF on each partition of your hard drive.
           You can reboot selecting a different setup for different tasks.

       2.  If you have a booting problem (such as: endless reboot loop, blank 
           desktop, unable to run certain types of programs, etc., just use
           the key option described above to choose a different partition
           to boot from.  This is far simpler than some of the procedures
           needed in the past (boot with hard drive off, run IDCHECK, turn
           hard drive on, rescan until drive found, run ICDBOOT, install icon,
           remove offending file, etc.)

    ICDTRAPS allows you to enable or disable the trap handlers in ICDBOOT.
    Just double click on ICDTRAPS; the file selector will appear, allowing
    you to select any ICDBOOT; if the version is 6.2.0 or greater, the status
    of the trap handler installation flag is shown.  You can change it, then
    click on "Save" to permanently configure the selected ICDBOOT.

IDCHECK.PRG
     This has been updated to check IDE devices on the Falcon, devices 
     connected to the TT/Falcon SCSI port as well as the ACSI/DMA port.  
     When running on a TT, the left-hand column shows the devices attached 
     to the SCSI port (including the TT itself) and the right-hand 
     column shows the devices attached to the ACSI port.  

INSTALL.PRG
     Automated setup of a hard disk.  Formats (if necessary), verifies,
     partitions, sets up auto-boot, and creates a desktop.  Ideal for
     the novice user who wants a quick setup, and for dealers setting
     up hard disks for customers.  When done, the disk should boot up
     when connected to any ST or TT with any TOS version and display a
     desktop containing all the icons necessary for the number of 
     partitions.

RATEHD.PRG 
     This has been updated to test IDE drives and drives connected to 
     the TT/Falcon SCSI port as well as the ACSI/DMA port. 

RELOG.PRG
     This program forces ICDBOOT to relog all hard drive partitions.
     Usually put in your AUTO folder after STARTHD.PRG when needed.
     Make sure ICDBOOT is configured for the largest possible logical
     sector size.  You can determine this with HDPARTS.TOS.

SCSI.PRG
     This is a SCSI Command tester which can also be used as a sector
     editor.  This is included only on the PRO level of ICD software.

STARTHD.PRG
     Looks for non-running hard disks, then issues a "Start Unit" command
     to them.  Some disks do not start when power is supplied.  This
     program will start them.  This program should go in your AUTO folder
     and should be followed by RELOG.PRG.  Make sure ICDBOOT is configured 
     for the largest possible logical sector size.  You can determine this 
     with HDPARTS.TOS.
     
TIMESET.PRG
     Sets computer clock from the hard disk clock (clock models only) and
     exits.
     
WHEREIS.TOS
     Find files on your hard disk.
     
+---------------------------------------------------------------+

Miscellaneous Notes
------------------- 

Connecting Supra/Atari Drives:
     Supra drives are initially set to SCSI=0, LUN=0, so if you 
     want to boot off your ICD drive, you may wish to change the
     ID of the Supra drive.  Alternatively, you could set the
     SCSI ID of the controller or drive in your ICD drive to a
     different value and boot off the Supra drive.  Contact ICD
     Technical Support for assistance if necessary.
 
     Atari SH204 drives are also set to SCSI=0, LUN=0, BUT they 
     have a bug in their hardware.  They respond to ALL LUN
     numbers causing havoc to the system.  A provision in the
     drive handler has been made to only see LUN=0 with a SCSI ID
     of 7.  Therefore you will need to set the 3 position dip
     switch in your SH204 to ID 7 (flip all three switches to the
     other position).

     Atari Megafile (SH205) drives are set as SCSI=0, LUN=0.  The
     SCSI ID # is changeable inside the box.  It uses a 
     combination host adapter/controller board but can be
     formatted with our software as an Adaptec 4000 for their 20
     Meg and Adaptec 4070 for the 30 and 60 Meg drives.

Clock Battery:
     If the clock is way off or seems to return crazy times, the
     battery may be low. For a replacement battery, send $5.00, 
     unless your host adapter is in warranty.  If it is in
     warranty, call us and we will send a batter at no charge.  A
     new battery socket is available for an additional $3.00.
     Soldering is usually required with older original ICD ST
     Host Adapters.  The newer units already have the socket
     installed and replacing the battery is a very simple
     operation.  We will install battery and/or socket for $20 
     when unit is out of warranty.  

     If your clock seems to run fast or slow it is probably 
     adjustable.  Look for a variable capacitor labled VC1 near
     the clock battery.  Use a subminiature flat-bladed screwdriver.
     Insert the blade into the opening and turn clockwise to speed
     the clock up, counter-clockwise to slow it down.  Start with
     1/2 turn, let it go for a day and recheck and go from there.
     It is possible with a little patience to calibrate these
     clocks very accurately.  If your host adapter does not have
     VC1 about the only recourse is to try changing the clock chip.

Host Adapter Mounting:
     There are four mounting holes on the board; mount it as you
     see fit.  ICD makes a mounting bracket kit for the host 
     adapter which you can probably use in your application.  It
     is called the ST/MK and is US $8.95 plus S & H (contact us to 
     order, or for more information).

Using Multiple SCSI ID's and Host Adapters:
     When using multiple SCSI ID's and/or host adapters a few rules
     apply:

     -    Power up the device closest to the computer first
          (plugged in). Then power up the next out in the chain 
          and continue in this fashion until all devices are
          powered.  Now BOOT the computer.  If the computer has
          an internal drive, there will be an additional delay
          while this device comes up to speed.  In this case, all
          devices might be powered from a single switch.
 
     -    On a Falcon, the order of scan is: IDE drive, then SCSI
          drives from 8 to 15 (physically 0 to 7).

     -    On a TT, the order of scan is: SCSI drives from 8 to 15
          (physically 0 to 7), then ACSI/DMA drives from 0 to 7.

     -    On an ST, the order of scan is ACSI/DMA drives from 0
          to 7.

     -    The first drive found provides the booter and (usually)
          the AUTO folder and accessories for the system.  Partitions
          will be assigned as C, D, E, etc.  The next SCSI ID found
          will provide the next partitions and so on.  It does not 
          matter physically where these drives are in the daisy chain 
          except for power up procedures.  The SCSI ID #s also do not 
          need to be consecutive (though that may be needed by the
          software provided by other companies).
 
Setting Up Your AUTO Folder For Programs Which Use GDOS:
     It is usually necessary to have GDOS be the last file in the
     AUTO folder.  Since the ST displays files in sorted order, 
     the only way to insure this is to create a JUNK folder, copy
     all files except GDOS to it, delete the AUTO folder, and
     recreate it.  Then copy all files back to the AUTO folder
     from JUNK, delete JUNK, and finally copy GDOS to the AUTO
     folder. 

     To avoid these problems try G+PLUS from Codehead Software.
 
Setting Up Your Hard Drive To Boot pc-ditto From A Partition:
     First, set up the partition to boot with the HDUTIL 
     program. Create a JUNK folder on another drive and copy
     ICDBOOT.SYS to it. Now run the pc-ditto program's formatter
     which sets MS-DOS to boot.  Finally copy ICDBOOT.SYS back to
     the root directory of your boot drive.  Now when you boot,
     the ICD Boot Program will run...then pc-ditto will boot.
 
     CAUTION: If you disable autobooting with HDUTIL, you will
     probably destroy your pc-ditto boot information as well.

     NOTE: pc-ditto just simply will NOT load PC-DOS from some
     makes of hard drive.  The reason for this is not known.
     Please do not call ICD for pc-ditto support.

What To Do When You Get "Locked Out" Of Your Hard Disk:
     Installation of certain .ACC files may cause you to bomb
     every time you boot and you can't access your hard drive to
     remove or rename the offending file!

     To cure this: turn off the hard drive, place a copy of the ICD 
     ST host adapter disk in Drive A, and boot.  Double click on 
     IDCHECK.PRG and let it scan through drives.  At the end it will 
     be blank.  Now, turn on your hard drive.  Let it come up to 
     speed.  Click on Rescan and repeat until your drive is shown.  
     Then Exit.  Now locate ICDBOOT.PRG and double click on it.  
     Install an icon for Drive C: (click on one icon to make it dark, 
     then go to the menu bar under options for Install Disk Drive; 
     use a capital C!) and double-click on it.  Now you can rename 
     the offending .ACC file to some other extension, and then you 
     should be able once again to boot from your hard drive.

     This procedure may not work with internal drives such as on the
     TT, Falcon, Mega STE, or Mega 2/4 with ICD AdSCSI Micro adapters.

     If this doesn't work, call ICD, and we will try to help you regain
     access to the hard drive.

Suddenly your hard drive won't auto-boot:
     Something has trashed partition information or corrupted the
     ICDBOOT.SYS file.  First try re-running HDUTIL and resetting the
     boot drive.  If this doesn't help, or if the Boot dialog shows no 
     hard drives, something has wiped out your partition sector.  Try 
     running Cleanup ST ("Hard Disk" - "Fix" options) to try to save the 
     partition.  Alternatively, you you can rewrite partition info using 
     the ICDFMT.PRG.  To do this, run ICDFMT and select PARTITION.  
     Re-enter your partition information (of course you have kept a record 
     of this).  Make sure all partitions are enabled (check mark under
     "On").  Select REWRITE PARTITION INFO ONLY at the bottom left side 
     of the dialog box.  Be careful here!  This is one place you want to 
     be ABSOLUTELY SURE that your information is 100% correct.

+---------------------------------------------------------------+



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