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OS X Oldworld 8GB limit workaround.
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Clinically Insane
Join Date: Dec 1999
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Just wondering if anyone with an older Mac (like my Beige G3) has tried using iPartition or something of that nature to repartition the HDD after OS X has been installed? Will it still boot?
More of a curiosity. Although, if it works, it would fix the annoying problem of having to put all my apps on a separate HDD than the one that OS X is on.
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"…I contend that we are both atheists. I just believe in one fewer god than
you do. When you understand why you dismiss all the other possible gods,
you will understand why I dismiss yours." - Stephen F. Roberts
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Dedicated MacNNer
Join Date: Jul 2002
Location: Germany
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Hi!
That won't work. I think you could use a PCI IDE-Controller card to work around the problem.
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Mac Elite
Join Date: Mar 2000
Location: Cambridge
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I don't think a PCI card would do the trick. The problem lies in the firmware of the computer itself, not the HDD controller (unlike the 127 GB problem ATA has/had).
As far as the original question is concerned, I'm not sure. If you already own the software, I can't see it hurting. If you don't. . . well, then it's up to you.
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Mac Elite
Join Date: Oct 2001
Location: Europe
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the 127gb limit in the cube is also firmware problem. You can fix it with a patch.
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Admin Emeritus  Join Date: Oct 1999
Location: Zurich, Switzerland
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Well, I believe you can use something like iPartition, but if any of the boot files get moved (in normal operation, or from a system update), the computer could lose the ability to boot.
tooki
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Dedicated MacNNer
Join Date: Oct 2000
Location: Pasadena, CA, USA
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I don't think you'll get around the 8 Gig problem. However, you can manually set where partitions are mounted by the file system by editing the /etc/fstab file. Your Applications directory could live on a separate partition, but appear to be on the main partition.
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Moderator  Join Date: Apr 2000
Location: Gothenburg, Sweden
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Originally posted by Sharky K.:
the 127gb limit in the cube is also firmware problem. You can fix it with a patch.
No, actually it's not. I'm nit-picking here, but the 8 gig issue on the old world machines i the firmware being able to find file beyond that limit until the OS has been brought up and can access the drive itself. In the 128 gig issue (which is present on many, many machines, not just the cube) the IDE specification limits the addressable space to that number. To access more, that special driver (don't remember its name now) does some odd and nasty things, raw reads and writes, to access address space that the IDE controller really claims isn't there. If you install a newer IDE controller (in machines that can take a PCI board) the firmware has no problems accessing data beyond the 128 gig limit.
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Dedicated MacNNer
Join Date: Jan 2005
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just curious - is the 8GB limit just the primary partition, or is it EVERY partition? trying to imagine what someone's desktop would look like with all those HD icons. 
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eMac 1.25GHz | 1.5GB PC2700 | 250GB Maxtor HDD | 8x LiteOn DVD+-RW
Sawtooth 1.5GHz | 1GB PC133 | 120GB Maxtor HDD | 40x CD-RW (external) | 16x DVD-ROM | Radeon 9800 Pro 128MB
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Admin Emeritus Join Date: Oct 1999
Location: Zurich, Switzerland
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Just the boot partition.
tooki
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Junior Member
Join Date: Oct 2003
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Just get a PCI ATA card ---- I am using a Acard ATA card connected to a 20 gig drive with OSX 10.2.8 on it (Beige G3 233 with a G3 400 MHZ cpu in it, Rage 128 Vid Card). 1 drive 1 partition works great.
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Clinically Insane
Join Date: Oct 2001
Location: San Diego, CA, USA
Status:
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Originally posted by omar96:
just curious - is the 8GB limit just the primary partition, or is it EVERY partition? trying to imagine what someone's desktop would look like with all those HD icons.
The 8 GB limit is how far into the disk the computer will look for a bootable system. The only way to guarantee that the system is all contained in the first eight gigabytes is to make the first partition no larger than that and place the system there.
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Chuck
___
"Instead of either 'multi-talented' or 'multitalented' use 'bisexual'."
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Dedicated MacNNer
Join Date: Oct 2000
Location: Pasadena, CA, USA
Status:
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just curious - is the 8GB limit just the primary partition, or is it EVERY partition?
It applies to the boot partition only. All other partitions can be bigger (or smaller) as one likes. And in my experience you actually want the partition to be slightly smaller than 8 gig - I had mine at 6 gig on my Beige G3.
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Mac Elite
Join Date: Oct 2001
Location: Europe
Status:
Offline
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Originally posted by P:
No, actually it's not. I'm nit-picking here, but the 8 gig issue on the old world machines i the firmware being able to find file beyond that limit until the OS has been brought up and can access the drive itself. In the 128 gig issue (which is present on many, many machines, not just the cube) the IDE specification limits the addressable space to that number. To access more, that special driver (don't remember its name now) does some odd and nasty things, raw reads and writes, to access address space that the IDE controller really claims isn't there. If you install a newer IDE controller (in machines that can take a PCI board) the firmware has no problems accessing data beyond the 128 gig limit.
oke, thanx for the info.
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