[Guide]Resizing Partitions on Android (Redmi device) - Xiaomi Redmi 3s Guides, News, & Discussion

4 this kind of guys x)
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Code:
Warning:
Your device will never boot :D
Does this enough?
Ok jk but consider its possible
So don't blame me,
not responsible for anything
Trick:
Read 2nd Post First
(if u think necessary)(i would)
Why ?? :
Cuz u want to increase/decrease size on internal storage/internal sd card/nand/emmc.
So u can save Avengers 1080p in dual audio
I.e. default internal storage will increase from 24.x GB to 26.x GB
Sounds cool ?
Go ahead
Tools required:
0. Nandorid Backup ,
back up everything every way you can/know
1. Rooted Phone
2. Custom Recovery with ADB Sideload
3. Minimal ADB and Fastboot Tools(for Computer)
4 parted utilities.zip (download from below)
5. Computer should recognise device for that install necessary drive
6. brain, commen sense, patients,calm etc.
---> PROCEDURE/STEPS
(will add screen shot, Rewrite again )
1.
Extract 'parted' from zip copy to "/system/bin"
(if can't Open Es File explorer app>find & tape Root explorer option>mount r/w option> mount system to r/w (read/write allow)
2.
Put phone in TWRP Recovery
3.
Connect to computer
On command line interface
(Windows>Run>CMD>enter)
#commands:
adb shell
su
parted /dev/block/mmcblk0
you will see the following screen
4.
Now to see the partitions and their partition numer use the following command
print
It will output a screen like follows
From the list above we can see partition number, the start position, the end position and the type of partition
Now from the List we need to figure out what partitions we need to remove and remake, and since we are majorly concerned about the Userdata and system partition, we will be playing around with those partitions only. But from the screenshot above you can see that Between the system and the userdata partition there is the cache partition.
To avoid any problems further. i would suggest you take a screenshot of this list .
5
Now Enlisting the partitions that we would have to remove inorder to resize them, they are:-
partition no. 27 i.e. system
partition no. 28 i.e cache
partition no. 29 i.e. userdata
In case you are using a device that has 2 system partitions (For eg. MI3) and you wanna reduce system2 and increase system1 you will need to delete only those 2 partitions
So now going further we will now remove the partitions using the following commands
rm 27
The above command will remove the partition no. 27 i.e the system partition
rm 28
This will remove the partition no. 28 i.e cache
rm 29
This will remove the partition no. 29 i.e. userdata
At this point of time you have lost all the data on your internal storage, system and cache partition. that means your device wont boot anymore except in recovery (which we are already in )
6.
Now that we have removed the partitions, we have raw space with us, which we would allocate to the three partitions that we removed, as per our choice.
To do that, we use the following commands
mkpartfs primary ext2 336 1250
mkpartfs primary ext2 1250 1653
mkpartfs primary ext2 1653 7818
336 is the start position of the partition and 1250 is the end position of the paritition.
since the partitions we removed started at 336 and ended at 7818, for my device, we would be able to play around only between these two numbers. i.e 336 and 7818
The first parition we made here is numbered 27 by default and will be of the size (1250-336 = 914) MBs
The second partition we made is numbered 28 and will be of the size 403 MB. (This is the cache partition and since I did not want to change the size i kept it the same)
The third partition we made is numbered 29 and will be of the size (7818-1653 = 6165) MB
The Important thing we need to note here is that the partition Number should not change as this could cause problems later on. i.e., considering my case the system parition should be 27, cache should be 28 and userdata should be 29.
7.
Now we will name these partitions using the following commands
name 27 system
name 28 cache
name 29 userdata
8.
Now punch the following command
quit
This will make you come out of parted utility. so that we can perform the next set of commands
Now we need to convert the partitions from ext2 to ext4 using the following commands
**// For System Partition //**
tune2fs -j /dev/block/mmcblk0p27
e2fsck -fDp /dev/block/mmcblk0p27
tune2fs -O extents,uninit_bg,dir_index /dev/block/mmcblk0p27
e2fsck -fDp /dev/block/mmcblk0p27
**// **
**// For cache Partition //**
tune2fs -j /dev/block/mmcblk0p28
e2fsck -fDp /dev/block/mmcblk0p28
tune2fs -O extents,uninit_bg,dir_index /dev/block/mmcblk0p28
e2fsck -fDp /dev/block/mmcblk0p28
**// **
**// For userdata Partition //**
tune2fs -j /dev/block/mmcblk0p29
e2fsck -fDp /dev/block/mmcblk0p29
tune2fs -O extents,uninit_bg,dir_index /dev/block/mmcblk0p29
e2fsck -fDp /dev/block/mmcblk0p29
**// **
9.
Now we have changed the type of the 3 partitions that we created from ext2 to ext4 and we are ready to go
Now we will enter the parted utility again and check to see if the partitions are made properly or not.
parted /dev/block/mmcblk0
print
As we can see in the screenshot. The system partition is now 914 MB and the userdata partition is no 6165 MB
Now punch the command
quit
exit
exit
Yes you need to exit two times.. first to come out of super user and second to come out of ADB shell
10.
Now Once the repartitioning is done
you need to flash your ROM
(MIUI /Lineage/RR/Viper/Mokee etc)
Now exit sideload in the TWRP and goto Install and select the Rom package and flash it.
Reboot and you should be done!
CREDITS, Thanks :
https://iwf1.com/how-to-re-partition-your-android-tablet-or-smartphone-all-options-included-change-size-fs-type-etc
https://forum.xda-developers.com/crossdevice-dev/android-one-general/guide-repartition-internal-storage-to-t3292159
http://en.miui.com/thread-183258-1-1.html

---

Reserved
sry for being so direct
here explanation for things that might didn't understood
->
Note: as much as I’d like to, I do not currently possess the resources to grant readers technical support. The guide itself, in the vast majority of cases should be sufficient help. For any individual issue please refer to online forums which are meant for that purpose.
Why Re-Partition?
If you’re here out of curiosity or any other reason than necessity, you may wonder: “why would anyone want to repartition a smartphone / tablet?”.
To answer, each person probably has their own reason, a couple of such I can think of are:
In the case of an upgrade, when there’s not enough space on one partition but others has aplenty.
When you don’t have enough space to install more apps – since your data partition is full – so you want to resize that partition.
Of course, some cases can be resolved via a more simple solution, however, if you want to deal with the problem directly and not just bypassing it – repartition is perhaps the best way to go.
In order to re-partition your device, basically, these are the steps you’ll need to make:
1. Connect your device to your PC.
2. Open up a command shell, on Windows you’d probably use CMD / PowerShell, on Mac / Linux – Terminal.
2-a. Reboot into recovery mode. (Optional, depends on the partition you plan to modify)
3. Use ADB to connect to your device.
4. Launch a partitioning software.
5. Start partitioning.
6. Reinstall any required system file in case you’ve deleted those and afterwards you may exit the shell and reboot your device.
Explaining The Steps
1. We use another machine, in this case our PC, in order to re-partition Android, because we want to have access to our Android system just in case something goes wrong during the partitioning, and also, since Android system cannot be run and resized at the same time.
2. This step is rather self explanatory. We must use a flexible tool that will assist us re-partitioning.
2-a. If you wish to modify any partition other than the recovery partition, I recommend booting into recovery mode in order to do so.
Being inside recovery mode wouldn’t interfere with the process as you may delete the system partition and its files. Furthermore, it might become handy in case you’ll need to reinstall Android system.
3. ADB is an official Android developers tool and it also happens to be the most suitable tool for the job at the moment.
5.
Since this step depends on what you’re actually intending to do with your device – it doesn’t say much, it is an open step, open for your decisions that is.
By typing the help command of your partitioning tool you’ll get a list of the options available to you. For example, these are a few of the options you’ll see in parted:
rm NUMBER – will delete a partition
mkpart – will create a partition
unit UNIT – will set unit type, for example “unit b” will set parted to use bytes, “unit gb” for Giga bytes, etc… (Tip: use bytes for maximum accuracy).
name NUMBER NAME – lets you name the partition (upon making any changes, don’t forget to name the partitions properly).
q – quit parted.
Important Things To Note:
fdisk executes your commands only when changes are saved whereas Parted executes them instantly.
fdisk may not fully support GPT partition table, thus in case yours is GPT, it’s recommended to use Parted instead.
6.
* Tip: If you’re unsure about your device partition names, you can use a command that shows them: cat /proc/partitions.
As you can see, there’s mmcblk0 – which is the main block where all the partitions are stored.
And there are 12 partitions in total which uses the name format “mmcblk0” plus “p” and a number that represent them, such as: mmcblk0p1, mmcblk0p2, etc…
Blocks lie inside /dev directory in Linux (yes, Android is a variation of Linux). We will use the block we’ve found in order to re-partition the device.
A short explanation regarding the relevant partitions:
Partition number 9 labeled FACTORYFS – is the “system” partition where all the operating system files are stored in.
Number 10 – DATAFS – is the “data” partition where all applications usually save their data.
Number 11 – UMS (USB Mass Storage) – is the internal storage partition where all the stuff such as: pictures, videos, etc, are stored in.
To resize those, you’ll have to delete them all and then assign different sizes – this is where a backup might become handy (I recommend copying all the files to your computer prior to erasing any partition).
After erasing and re-partitioning the available space, you should re-label the partitions with the same names (for compatibility sake) and create file systems (I prefer using ext4, however, if your device came with other specific file systems, it might be a good idea to stick to those).
So, how do we do it?
Here’s the sequence of commands with a following explanation:
(parted) rm 9
(parted) rm 10
(parted) rm 11
Will delete FACTORYFS, DATAFS and UMS respectively.
************
From another thread different info
By default, Parted uses MB as the storage unit. To prevent possible unused space after repartitioning, we’ll use sectors as a unit instead.
Type
unit s
This’ll change to sectors.
Type
print
It’ll give a warning, just type
i
Then:
print free
At the top, you’ll see that the sector size is written. Write this number down somewhere. For my Android One 4GB, the sector size is 512 bytes.
Now, you need to understand what the list means. Each horizontal row shows the details of a partition.
The 1st column shows the partition number.
The 2nd column shows the start offset of that partition. That means that the partition starts at the location mentioned.
The 3rd column shows where the partition ends. Notice that each partition starts exactly 1 sector after the previous one ends.
The 4th column is obviously the size of the partition.
The 5th column is the file system used by the partition. If nothing is written in this column, that means that it’s a binary partition.
The 6th column is the partition name.
You’ll see that the sizes in that list are weird. They’re not in any standard unit you might know. That’s because we used sectors instead of megabytes. The ‘s’ after each number indicates that it’s in sectors. (You can use the default MB unit (1MB=1000 KB. 1KB=1000bytes), or the MiB unit (1MiB=1024 KiB), but that just might leave 1 or 2 MB of space unused. So, I’m using sectors).
Remember that 1 sector = 512 bytes for my phone.
There’s some free space at the top and bottom of the list. Leave that free space there. Do not make partitions using those.
To convert sectors to MiB or KiB:
1s = 512bytes (Use the sector size you wrote down previously for this step, it might not be 512 bytes for you)
1024 bytes = 1 KiB
1024 KiB = 1 MiB
1024 MiB = 1GiB
So, 4833280s = (4833280 x 512) B = 2474639360 B
= (2474639360 / 1024) KiB = 2416640 KiB
= (2416640 /1024) MiB = 2360 MiB
= (2360 / 1024) GiB = 2.30 GiB
We’ll use another terminal window with sizes in MiB now. So open another Parted prompt in a new terminal / command prompt window, but instead of
unit s,
this time, write
unit MiB
Type “print”, “i”, and “print free” again
Look at my 11th partition. Its size is 8MiB. I know that this logo partition doesn’t need more than 2 MiB. So, I’ll make it smaller.
When you make partitions smaller, all the data inside will be lost. So, we need to back up the partitions first.
Open a 3rd terminal window. Type
adb shell dd if=/dev/block/mmcblk0p11 of=/microSD/p11
The “dd” command copies bytes from the “if=” location, to the “of=” location. The internal storage is /dev/block/mmcblk0. The “p11” after that refers to the partition we are backing up. Notice that in the Parted list, “logo” has a partition number of “11”. So the general command to back up partitions is
adb shell dd if=/dev/block/mmcblk0p<partition_number> of=/microSD/p<partition_number>
From recovery, unmount all partitions except microSD and oem. Then back up partitions 11, and 13 from PC. We will copy the files from OEM instead of using dd. So type
adb shell mkdir /microSD/oem
adb shell cp –a /oem/ /microSD/oem
Go to /microSD/oem/oem/app with TWRP’s file manager, and delete everything there.
Open the 1st terminal with sizes in sectors.
Type
rm 11
This will delete the oem partition. Type
print free
.

---

Abhijeet Rajgor said:
sry for being so direct
here explanation for things that might didn't understood
->
Note: as much as I’d like to, I do not currently possess the resources to grant readers technical support. The guide itself, in the vast majority of cases should be sufficient help. For any individual issue please refer to online forums which are meant for that purpose.
Why Re-Partition?
If you’re here out of curiosity or any other reason than necessity, you may wonder: “why would anyone want to repartition a smartphone / tablet?”.
To answer, each person probably has their own reason, a couple of such I can think of are:
In the case of an upgrade, when there’s not enough space on one partition but others has aplenty.
When you don’t have enough space to install more apps – since your data partition is full – so you want to resize that partition.
Of course, some cases can be resolved via a more simple solution, however, if you want to deal with the problem directly and not just bypassing it – repartition is perhaps the best way to go.
Click to expand...
Click to collapse
Hey, Can you tell me the partition sizes for different partitions i.e. system, data, cache.... for the attached zip file.

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incomplete guide
Bro go to link in the post guide is yet incomplete , I'll rewrite again with more specific n Direct to point
Thanks

---

Abhijeet Rajgor said:
Bro go to link in the post guide is yet incomplete , I'll rewrite again with more specific n Direct to point
Thanks
Click to expand...
Click to collapse
Do you know how we can delete the /cust partition and include it into the system?

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I don't know
bekcicandrej said:
Do you know how we can delete the /cust partition and include it into the system?
Click to expand...
Click to collapse
Am yet working on my device itself yet didn't tried on Redmi 3s,

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Cwm recovery for my Alcatel