A second Extended Partition ?(fdisk)

[MT Morales]

I have an unsual request to create 5 more partitions out of one which is
currently a primary (/dev/sda3). I was thinking about destroying /dev/sda3
and create a second extended partition. fdisk shows the following:


Command (m for help): p

Disk /dev/sda: 73.2 GB, 73274490880 bytes
255 heads, 63 sectors/track, 8908 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/sda1   *         1        15    120456   83  Linux
/dev/sda2            16      1099   8707230   83  Linux
/dev/sda3          1100      7251  49415940   83  Linux
/dev/sda4          7252      8908  13309852+   f  Win95 Ext'd (LBA)
/dev/sda5          7252      7888   5116671   83  Linux
/dev/sda6          7889      8398   4096543+  82  Linux swap
/dev/sda7          8399      8908   4096543+  83  Linux

As you can see there are no sectors left on the current extended one, and I
can only destroy /dev/sda3 to create 5 logical ones, is this even possible?
i.e. Is it possible to create a second extended partition out of a primary?
Is the number of extended partitions limited to one under fdisk?

I didn't see any obvious options under fdisk to create a second extended
partition.

Again, the only cylinders I can use for these 5 new partitions are the ones
used by /dev/sda3. All others are already in use. There is already one
extended partition and it's fully utilized.

Any ideas or suggestion on how to go about creating  5 additional partitions
from cylinders: 1100 to 7251? or I'm just simply screwed?

Thanks,

mtm