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Author Topic: What make a HD partition non-dos  (Read 2173 times)

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Offline AmidufferTopic starter

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What make a HD partition non-dos
« on: June 29, 2007, 10:49:45 PM »
Something odd happened to my A4000 with this 40gig harddrive!

I finally got my 3.0 installation disk to work, and installed Workbench, no problem. I installed IDEFix, yay! CDrom shows up, then, I install a couple of programs to HD1:, and then out of the blue, HD0: becomes a non-dos partition. What the hell? Looks like I'll have to re-format it again. Is there a reason for something like to happen?
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Offline Piru

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Re: What make a HD partition non-dos
« Reply #1 on: June 29, 2007, 11:00:14 PM »
Most likely wrap at 4GB border.

Use check4gb to find out if your setup is fubared.
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Offline AmidufferTopic starter

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Re: What make a HD partition non-dos
« Reply #2 on: June 29, 2007, 11:56:58 PM »
Ok. Thank you.

I set the HD0: partition to 800mb and the rest for HD1:, according to what I had read, keeping HD0 below 4gig should work fine. Maybe not?
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Offline Piru

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Re: What make a HD partition non-dos
« Reply #3 on: June 30, 2007, 12:11:01 AM »
HD0 works obviously. But HD1 spans past the 4GB barrier, and when data is written to this partition, eventually it will try to write past the 4GB area, wrapping back to the beginning of the HDD, and thus zapping HD0 (and RDB too, in most cases. Apparently you were lucky).

Just using SFS is not enough to get rid of the 4GB limitation. You must also upgrade your scsi.device somehow (scsi43, amigaos 3.5/3.9, idefix...)
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Offline Quixote

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Re: What make a HD partition non-dos
« Reply #4 on: June 30, 2007, 04:44:26 AM »
 :-( I had exactly the same situation when I installed a largeish hards drive on my A4000 years ago.  

 :-) OS 3.5 has an updated filesystem, so everything worked fine after that.  Also, the Macintosh emulator Shapeshifter drive the hardware directly when formatting its own partitions, so they'll have to exist wholly inside the four gig barrier.  (I learned that the hard way, too.)
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Offline AmidufferTopic starter

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Re: What make a HD partition non-dos
« Reply #5 on: June 30, 2007, 05:23:22 AM »
All the more reason to upgrade soon! Oh well, at least I still have a fully functioning A3000 in the meantime.

Hmm. Should I go with 3.5 (which I already have), or go all the way to 3.9?
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Offline amiga92570

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Re: What make a HD partition non-dos
« Reply #6 on: June 30, 2007, 12:29:49 PM »
If you use rom update in 3.5 or 3.9 it will automatically update scsidevice. I would get 3.9 if I were you.
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Offline Thomas

Re: What make a HD partition non-dos
« Reply #7 on: June 30, 2007, 10:34:14 PM »
The combination of IDEfix and SFS is completely sufficient to have more than 4GB. Just make sure that IDEfix is loaded residently (i.e. replace C:IDEfix by C:LoadIDE RESET in s:startup-sequence) and that the boot partition is inside the first 4GB of the drive.

Bye,
Thomas
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Offline AmidufferTopic starter

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Re: What make a HD partition non-dos
« Reply #8 on: July 01, 2007, 12:41:53 AM »
Quote

Thomas wrote:

The combination of IDEfix and SFS is completely sufficient to have more than 4GB. Just make sure that IDEfix is loaded residently (i.e. replace C:IDEfixby C:LoadIDE RESET in s:startup-sequence) and that the boot partition is inside the first 4GB of the drive.

Bye,
Thomas


Hi Thomas, thanks for the advice. I have question about that. Another thread Toaster and SFS had a question about this, since there's a Toaster 4000 in this Ami, and plan on using it. What do you think? Do I use SFS, even if theres problems with VT or is there a way around, older version perhaps?
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Offline Thomas

Re: What make a HD partition non-dos
« Reply #9 on: July 01, 2007, 08:14:19 AM »

If the Toaster does such low-level things as Trilobyte wrote in the other thread, then you better stay below 4GB with it. Create an FFS partition inside the first 4GB of the drive which is dedicated to the Toaster and use SFS for those partitions which are above the 4GB line, but don't use the Toaster to store data on them.

Bye,
Thomas
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Offline rkauer

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Re: What make a HD partition non-dos
« Reply #10 on: July 01, 2007, 04:26:55 PM »
Quote

Thomas wrote:

If the Toaster does such low-level things as Trilobyte wrote in the other thread, then you better stay below 4GB with it. Create an FFS partition inside the first 4GB of the drive which is dedicated to the Toaster and use SFS for those partitions which are above the 4GB line, but don't use the Toaster to store data on them.

Bye,
Thomas


 Better than that: buy a Flyer! Plus seven(!) SCSI harddrives connected. :-D

 Toaster/Flyer setups are the BEST solution to video productions ever! :-o
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Offline AmidufferTopic starter

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Re: What make a HD partition non-dos
« Reply #11 on: January 28, 2008, 09:56:52 PM »
OK, an update. I've finally got 3.1 ROMS in the A4000, and 3.9 WB installed on the Ami. Whoo, looks nice!

But, for some reason, HD1: only went up to 6gigs? Will I have to reformat and partition the whole Hard Drive again?
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Offline Thomas

Re: What make a HD partition non-dos
« Reply #12 on: January 29, 2008, 08:14:11 AM »
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Offline A4000_Mad

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Re: What make a HD partition non-dos
« Reply #13 on: January 29, 2008, 08:32:58 AM »
@ Thomas

I've also downloaded your program. Thank you very much :pint:
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Offline pyrre

Re: What make a HD partition non-dos
« Reply #14 on: January 29, 2008, 09:12:55 AM »
Perhaps a silly question. But, if you have 3 HDDs in a SCSI chain and they are 2.2 - 3.6 gig in size. Does the 4 gig barrier apply then, or does it count only for single disks above 4 gig? (have one that is 9.4 gig...)
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