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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: dougal on December 03, 2009, 04:19:40 PM
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Hi,
I bought a second hand A4000T which previously had a picasso IV.
When i try to boot up using a normal 1084S OS3.9 goes into a weired unsupported resolution where i cant see anything except garabage.
I managed to boot of a WB3.0 disk but i cant change the settings in prefs.
What can i do ?
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Boot from WB3.0 floppy.
Go to Devs/Monitors on your boot partition on the harddrive (DH0: or HD0:) and remove the driver for the PIV, copy it to storage/monitors and delete it from devs. Make sure you have the PAL or NTSC Driver in devs.
Remove WB3.0 floppy. Reboot the machine and when it boots it will default to either NTSC or PAL, which will then let you adjust the settings using Prefs/ScreenMode
Weed
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I cant coz for some reason i tried playing with the partitions and now it refuses to boot.
If i try booting from floppy (tried WB2 WB3 and WB3.1) but just get "WORKBENCH SCREEN" ... no icons not even of floppy.
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If i try booting from floppy (tried WB2 WB3 and WB3.1) but just get "WORKBENCH SCREEN" ... no icons not even of floppy.
The A4000T needs a special Workbench3.1 disk which contains workbench.library. On other Amiga models this library is in the Kickstart ROM, but not on the A4000T.
What did you do to the partitions that it does no longer boot from HDD ?
For the initial problem, once it boots from HDD again, hold down both mouse buttons after a reset, click on "boot without startup menu" and in the shell window enter
delete prefs/env-archive/sys/screenmode.prefs
After that it will boot into the default resolution.
If you need HDToolbox to edit partitions, you can do the same (boot without startup-sequence) with the Install3.1 disk in the drive and run HDToolbox by entering the command into the shell window:
cd hdtools
hdtoolbox
Bye,
Thomas
Edit: BTW, your signature shows no less than 5 Amiga models which could be used to repair the harddrive very comfortably. Especially the A4000 is predestinated for that. Just connect the A4000T HDD instead of the DVD drive.
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Ah, right. It's because the 4000T doesn't have workbench.library in ROM.
For your original problem, boot without startup sequence and delete/rename envarc:sys/screenmode.prefs
If you've truly trashed the original partitions, you'll need to extract workbench.library from a regular 4000D 3.1 ROM and put it on your Workbench 3.1 and Install 3.1 disks in order to recover.
EDIT:Thomas beat me to it! :)
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Solved
Problem was that i have 3 partitions (WB3.1+OS3.9+Work). I accidently set WORK partition as the main bootable one. So of course it would not go into Workbench.
Obviously since there is no workbench.library on the workbench3.1 disks (from the a1200) it would not boot up.
Managed from amigados to set the OS partion as bootable.
All fixed now :)