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Intsalling Unbuntu 9.10

My Current System Config :
4 GB RAM
500 GB HDD

After making it Dual boot : (Ubunty 9.10 with Windows 7 )

/dev/sda1  ntfs  13 gb
/dev/sda2  ntfs  35 gb
/dev/sda5  ext2 /  28.7 gb
/dev/sda6  swap 5.7 gb
/dev/sda7  ext3 /boot
/dev/sda8  ext3 /home
/dev/sda9  fat32 /data [ ]

A little R&D I did :

root '/' - Is that where all the linux installation files gets installed to?
/boot - Should be mounted on a primary partition so that the BIOS can find it?
/swap - Should be 2x RAM mounted on special swap file system?
/home - Is this where I do all my work .i.e. documents, videos, pictures,

FAT systems have no file permission functionality, which often leads to practical issues when sharing such partitions between Linux and Windows. the new NTFS-3g driver for Linux offers both read and write functionality on NTFS file system partitions.
Swap Space : swap partition is like an extension of your RAM; it's used by the running system to temporarily park active programs and program-related data when the computer's RAM is insufficient (and thus preventing running out of memory).

Primary PartitionPrimary partitions: The original partitioning scheme for PC hard disks allowed only four partitions, thus you are allowed up to 4 primary partitions. Linux numbers primary partitions 1-4.


Note: Some OSs (Windows, BSD) can ONLY be installed into a PRIMARY partition.

Linux (and swap) can be installed into a primary or logical partition.

Extended and Logical partitions: To overcome this limitation, extended partitions are used. A single primary partition may "converted" into an "extended" partition which is then further divided into sub-partitions called logical partitions. Sorry you may not convert more then 1 primary partition into an extended partition. You then create logical partitions within the extended partition. It may be possible to create further extended partitions within an extended partition, although this becomes complicated and I am not sure of any advantage this offers.
Linux numbers Logical partitions starting with 5: The numbers 1,2,3 and 4 are reserved for the primaries, even if you have just one primary partition. So if you make one primary partition and one extended extended partition with one logical partition:

The primary would be sda1
The entire extended partition (and any logical partition(s) it contains) would be sda2.
The logical partition within the extended partition would be sda5.


Issues faced :
Before starting partitioning I had :
1. /dev/sda1 ntfs 13 gb
2. /dev/sda2 ntfs 35 gb

After selecting manual partitioning :
 1. /dev/sda1 ntfs 13 gb
2. /dev/sda2 ntfs 35 gb
3. /dev/sda5 ext2 / 28.7 gb
4. /dev/sda6 swap 5.7 gb
5. Free SPACE -

The remainder becomes UNUSABLE and I cant partition it further for /home , / boot or /data !

Reason:
We are limited to 4 primary partitions
Solution:
Need to make a extended and then make logical partitions in that. [Select logical as partition type when adding new partition. ]

Useful Links :
Step-by-Step Installation Guide with Screnshots
All about Linux swap space
Partioning
Release notes document known issues with Ubuntu 9.10 and its variants


TBA -{ TobAdded}:  description of various file types tmp, var , etc with there pros and cons
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