Ready-made Emergency Disk II

 
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Introduction
For all those that might be interested in trying out an Emergency Disk II floppy, but who also thinks it sounds like too much hassle to download and install Amiga911 Maker just for creating one, there is a much easier solution available.  This comes in the form of some generic ready-made versions of the Emergency Disk II that was created by using Amiga911 Maker 1.62. The target Amigas for these three disks are A600 and/or A1200, but they should also work with other Amiga models as well. The minimum requirements are a 68020 processor and 6MB RAM.
The main difference between the three disks, is that one of them is a Lite edition, and another includes a minimal version of the Poseidon USB stack.  Because of legal reasons, the disks are missing some system files since they are still under copyright. This means that the disks must be activated by importing the missing files before they can be fully used, see further below for more details regarding this.

You can find links for downloading the disks on the Downloads page.


Contents of the Emergency Disk
In addition to the standard default stuff that you can read more about on the About Amiga911 Maker page, the three ready-made Emergency Disk II floppies also contains the stuff found in the table below. The USB edition has support for USB mice, keyboards, hubs, mass-storage devices and CD-ROM drives.

 

Edition type Standard Lite PUSB
68040.library X X X
Proportional font X X X
toBack&Front X X X
ZShell X X X
PCMCIA - CFlash X X X
CD-ROM support X X X
Poseidon USB stack     X
LoadModule  *     X
FastFileSystem X X X
Prof.FileSystem (AIO) X   X
SmartFileSystem X   X
PFSFormat X   X
SFSFormat X   X
SFSCheck X   X
       
Check4GB X   X
DiskMaster2 X X X
HJSplit X    
ImageMount X X X
JanoEditor X   X
MaxTransTest X   X
SnoopDos X   X
SysInfo X    
TransADF X X X
WhichAmiga X    

*  =  Only used for patching the system with a newer input.device upon booting.



Activating the Emergency Disk
As mentioned above, you will need to activate the Emergency Disk II before it can be used (due to copyright reasons), this can only be done from Workbench.

First of all you need to have an AmigaOS 3.9 CD/Disk/Whatever ready since some system files has to be copied from it. If you have prepared a FAT formatted USB pendrive or Compact Flash card by copying all OS3.9 files to it, you have to make sure that it's volume name is "AmigaOS39", otherwise the volume name should be "AmigaOS3.9" (the activation script + boot disk will look for both names).
If you have an AmigaOS 3.9 ISO or HDF image file, you can run the MorA script found on the boot disk, this will prepare some software that can be used for mounting the ISO/HDF image (a few files will be extracted to the Ram Disk).

When you are ready, run the included "Activate E-Disk-II" tool. Now you will be prompted to insert either AmigaOS3.9: or AmigaOS39: so that some files can be copied from it. When this is done, you will be asked about what kind of monitor driver(s) you want included on the floppy. Here you can choose between PAL, NTSC, Both or None. Next, the previously copied system files will be added to the Emergency Disk II, where the majority of them will be compressed.
Have in mind that you will be asked some questions where the options given are Y/N (as in Yes/No), if you enter something else or simply press the Return key, the answer will be considered to be a "No".

After this is finished, you will be asked if everything went OK, and if the answer is yes, the final step of the activation can be done by entering Y or Yes and pressing the Return key.  When this is done, you can just delete the "Activate E-Disk-II" tool on the disk (if present) since it's no longer needed.

Please note! The PAL and NTSC monitor drivers are really not needed for proper operation, they are included in case you want to force a PAL display on a NTSC Amiga (or vice versa).


Configuring the Emergency Disk
When the activation is done, you can copy whatever extra files you want included to the Emergency Disk II, this can be stuff like device drivers or file systems. Unless your Amiga has a 68040 CPU, you can just delete the 68040.library from the disk. If it has a 68060 processor, you must copy the correct versions of the 68040 & 68060 libraries instead. There should be at least 80KB free disk space for this purpose.

If the boot floppy includes the Poseidon USB stack, you are good to go if your Amiga has a Subway or Thylacine board installed, otherwise you have to copy the correct device driver for your USB card to the Devs/USBHardware drawer on the disk. Have in mind that it's possible to have several drivers in this drawer.

Depending upon how you want to use the Emergency Disk II, you might want to edit the Startup-Sequence of the floppy, so open it in your favourite text editor and follow the instructions below:

 *  If your Amiga is not an A1200 or A600, or you don't use a Compact Flash card with a CF-PCMCIA adapter, disable the "C:Mount >NIL: CF0:" line by inserting a semi-colon at the beginning, like this: ";C:Mount >NIL: CF0:".

 *  If you want an AmigaOS 3.9 ISO or HDF image to be mounted upon booting the Emergency Disk, you must first find the line that starts with "Execute >NIL: S:MountISOImage" and edit the path and name of the ISO/HDF image to be used. For an USB storage device, the path should start with UMSD:, and for a CF card + CF-PCMCIA combo, it should start with CF0:. Next, you must enable the line by removing the semi-colon at the start. Here's an example of how it can look like:
 
Execute >NIL: S:MountISOImage "UMSD:AmigaOS3.9.iso"

After booting the finalized disk, you can do some minor configuration like changing the screenmode, fonts, and keymap used by the system. This can easily be done by selecting the relevant options from the System menu of the Workbench.


IMPORTANT!
It is of utmost importance that you don't modify the Emergency Disk in any way before it is activated. You should for example not copy anything to it, because although you will have some free space left for stuff after activation, the disk will at one point during the installation be almost full (maybe 10 - 15 KB space left). The reason for this is the extra installation files that is present on the Emergency Disk. These files will be deleted during the final stage of activation since they are then no longer needed (thus freeing up some space).


Adding CD-ROM support
All of the ready-made Emergency Disks includes support for using a CD-ROM drive with your Amiga, but in order to use this functionality, you have to configure it manually. First and foremost you will need a device driver that supports optical drives, and unless the controller already have this built-in, you will have to find the correct driver and copy it to the Devs drawer on the Emergency Disk. Here is an example: If you want to use a CD-ROM drive with the internal IDE controller of an A600, A1200 or A4000, you can just use scsi.device, since the "AmigaOS ROM Update" file contains a newer version of this driver (with CD-ROM support).  But if on the other hand scsi.device cannot be used, you may need a suitable variant of the atapi.device instead.

With the device driver sorted out, the next thing to do is configuring the mount file. Here you will have to open the Devs/DOSDrivers/CD0-example file in a text editor, and then replace "dummy.device" with the name of the real device driver to be used. Next, you must change the correct unit number used by the device. Just to continue with the example above, the correct entries would have been "Device = scsi.device" and "Unit = 1".  After saving the file, you should then rename it from CD0-example to CD0.

Please note! The above is NOT required for using a USB CD-ROM drive with your Amiga, this is because it will more or less be treated like any other USB mass-storage device (will automatically be mounted).


How to free up some disk space
After activating the ready-made Emergency Disk, you will have some space left for stuff you would like to add to the boot floppy. But if you still need more free space, you could try the things mentioned below.

1. If the boot disk is to be used on a Amiga with 030 CPU or lower, you can just delete the Libs/68040.library if it's present on the disk. This will free up 44 KB disk space.
2. If the "Activate E-Disk-II" tool is present on the Emergency Disk after activation, you can just delete it since it's no longer needed. This will save 9 KB storage space.
3. You can also delete the C.info, Devs.info, L.info & DOSDrivers.info icons from the Emergency Disk since they are not really needed. Then you will get 6 KB extra disk space.
4. The disk includes a HDToolBox icon, this is in case you need to change and preserve the icon tooltypes used by HDToolBox. If you don't need the icon, just delete it to save a whopping 1.5 KB space :-)


The install script
When you activate the Emergency Disk, you may notice that the install script is very similar to the one used in the ClassicWB packs by Bloodwych. This is because the E. Disk script is partially based upon the ClassicWB installer, but there are some differences though. One thing is that it's more verbose in the sense that it gives the user more info about the stuff it's currently doing. The install script does also use the same rules as the Amiga911 installer, where it uses the volume names instead of the device names, in other words, it doesn't automatically assume that the disk is inserted in DF0:.





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