How to create more than 16 partitions in an IDE

raghuni
raghuni used Ask the Experts™
on
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).
Comment
Watch Question

Do more with

Expert Office
EXPERT OFFICE® is a registered trademark of EXPERTS EXCHANGE®
Top Expert 2005
Commented:
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)
Top Expert 2005

Commented:
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.

Do more with

Expert Office
Submit tech questions to Ask the Experts™ at any time to receive solutions, advice, and new ideas from leading industry professionals.

Start 7-Day Free Trial