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How to create more than 16 partitions in an IDE

Posted on 2006-11-11
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Last Modified: 2013-12-16
Hi,

Theoretically,  its true that we we can have 63 partitions in an IDE HDD (16 partitions for one primary partition). We can have only one extended partition and can accommodate 16 logical partitions in that. I know that we can have only 4 primary partitions and one among them can be an extended partition for an IDE.  

I think, practically its not true it seems. Can any one explain me how to create another set of 16 partitions in an Hard Disk (IDE).
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Question by:raghuni
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ravenpl earned 50 total points
ID: 17920752
You can have only one extended partition per one drive. Under linux I was able to create more than 16 partitions on the extended partition.
I heard, that RH linux has hardcoded limit of 16 parts per drive, but linux in general has not.
But SATA/SCSI are limited to 16 partitions under linux. It's linux specific however.

The practical limits are 15 parts for SCSI/SATA(/dev/sdX) and 60 for ATA(/dev/hdX)
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by:ravenpl
ID: 17920762
Oh - but You may encounter another problem: no /dev/hda16 device file - in such case just create it
mknod /dev/hda16 b 3 16 # and so on.
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