In general a Basic disk with MBR partition table can support
- 4 MBR Primary partitions. Here u can install upto 4 operating systems in each partition like Windows XP in partition0, Vista in partition1, Se7en in partition2 and Ei8ht in partition3 where the Earlier versions must be installed first.
- 3 MBR Primary partition and 1 Extended partition with 128 Logical volumes in the extended partition. Here it is safe to install more than 4 operating systems including Linux based operating systems like Ubuntu, Fedora, RedHat etc.
If your hard disk is already partitioned into 4 MBR primary partition, it is necessary to delete one partition so that it can be extended upto 128 logical volumes. Backup your data to other volume before deleting a partition.
Solution:
1] Download
Ubuntu LiveCD and burn the image file to a CD to make it a bootable one.
2] Boot the PC with this CD by setting priority in your BIOS menu or Boot options @ startup.
3] Choose the option "
Try Ubuntu without making changes to your Hard Disk".
4] Go to
Administration >
Preferences >
GParted.
5] It will display all empty free space as
Unallocated in grey color. If you have already installed 4 primary partitions, you must delete one partition in order to have unallocated space for creating an extended partition.
6] Right click on
Unallocated partition >
Create New Partition >
Create as Extended Partition > Click
Add button.
7] Now Click
Apply all operations button to complete the process. This also can be done after completing all the steps.
8] Now Right click on
Unallocated under
Extended File system >
Create New Partition > set
Create as Logical Partition and set the
File System as ntfs and allocate your
New Size in MB by reducing it > Click
Add button.
9] Like this your remaining Unallocated space under
Extended File system can be divided upto 128 Logical Volumes including the above.
10] After all Click
Apply all operations button to complete the process.
11] Once completed Restart your PC and take the Ubuntu LiveCD out.
12] After rebooting into Windows you can check using Disk Management utility.
Example1: Here the Hard Disk is partitioned into
- 1 MBR Primary Partition
- 1 Extended Partition with 3 Logical Volumes
 |
| Example 1: I have installed Windows XP in a Primary Partition & Windows 7 in a Logical Volume under Extended Partition |
Example2: Here the Hard Disk is partitioned into
- 2 MBR Primary Partition
- 1 Extended Partition with 5 Logical Volumes
 |
| Example 2 |
|
Example3: Here the Hard Disk is partitioned into
- 3 MBR Primary Partition
- 1 Extended Partition with 2 Logical Volumes
 |
| Example 3 |
Note1: In some cases by default
System Reserved Volume was created during Windows installation and act as a primary partition. In order to avoid this unnecessary primary partition, delete this partition using GParted Ubuntu LiveCD. So that you can have a complete usage of four MBR primary partitions.
Note2: May or may not loss of data occurs during partition. So that backup your data to other external hard disks before partition.