Partitioning sd-card is basically virtually “dividing” your sd card into parts, so that you can use each one separately for different purposes.
So, in easy words, you can virtually increase your phone’s internal memory and ram (both of which are unsatisfactorily low in our device)
However, there is a disadvantage to partitioning, mainly a slightly slowed phone. This “slowdown” is caused mostly if you:
• Have a low-speed (technical word = “class”) sd card
• Have moved dalvik cache to sd partition that you have created
• Have attempted to use a swap partition
But a lot of people don’t mind this slowdown a lot, since a partition allows them to have access to more apps.
Also, you will lose hot-swapability, i.e. you won’t be able to remove your card from your phone, will the phone is running.
Before you proceed, you SHOULD backup all of your data on your card since it will be deleted, as the card will be formatted during the process.
Q) How to create a sd partition?
A) You will need
• A good micro sd-card, with a class greater than 4
(the class is usually printed on the card itself, it’s the number inside the letter ‘C’)
• A rooted galaxy fit running android 2.3.x (preferably on a stock rom), with ClockworkMod recovery
• Backup all your data.
• Reboot into CWM.
• Go under “advanced”>”partition sd card”.
• Select the size of your second partition (On my first try, I made a partition of 1024MB but found it too big with a lot of space unused, so I deleted the partition and made a new one of 512MB)
This is your choice, choose one depending on the total size of your card, the no. of apps/games you’ll have etc.
• After selecting that, select swap size as 0MB (This one also is your choice, but I’ll explain why to take 0MB, and not anything else)
• Now wait till the process is completed, and reboot.
As far as I know, CWM v5 makes a partition of EXT3 format, by default.
Q) Why to select swap size as 0MB?
A) Swap partition is made with the objective of utilizing it as VIRTUAL RAM. Now this may sound as a good thing, but in reality the ram in our fit is way faster than the average class 10 micro sd-card. So, instead of speeding up your system, it will slow down your system horribly after a certain point.
So, in short, you shouldn’t be using a swap partition, hence there is no point in creating one if you are not utilizing it.
Q) What if I want to delete all my partitions and get back my sd card the way it was?
A) There are a few ways to delete your partitions and reset your card, and I’ll explain the easiest one.
• Backup the data on your card.
• Make sure your card is in the phone’s card slot, and that your phone is booted/running.
• Go into Settings>Storage, then select option “Unmount sd card”
• When the card is unmounted, you will be able to select the option “Format sd card” (which you previously couldn’t)
• Select the option and wait for it to complete.
If you want to delete the ext partition, I recommend doing it after a clean install of a stock rom. Else, make sure to move all your apps from the ext partition to your phone.