Develop Bugs

[Q] Creation of ext4 partitions

Im have issues creating an Ext4 partition, not even GParted is working, it doesnt give me the option to partition to a logical partition at all, under any format... can any one give suggestions which methods will work?

Yesterday i downloaded gparted .zip from the offcial site and made a bootable usb. Worked for creating ext4 (as logical) - but had redo it for primary
Also if GP won't work, try easus partiton.

You will have no problems if you make it a primary partition
Sent from my Desire HD using Tapatalk

Im just loading my data to the card now to see how its gonna run, trying it as a primary, but I was under the impression that EXT's had to be logical?

Hilton.Swart said:
Im just loading my data to the card now to see how its gonna run, trying it as a primary, but I was under the impression that EXT's had to be logical?
Click to expand...
Click to collapse
the way the loop works with the symlink, the device dosent see the ext as a partition, and as windows can't read the ext, it will always see the fat partition as the primary one

[Q] ext4 What is it?!

I have been using a custom ROM for a while now and I have been seeing in the thread that many people are using ext4.
I have asked many times in the thread and recieved no reply.
So my question to you is what is "ext4" and what bennifit will it be to me as a Desire owner.
Thanks
wh000sher

1. Google is your friend
EXT4 is a file format used by Linux (Android = Linux). When threads talk about EXT4, they are referring to creating an EXT4 partition on your SD-Card e.g. have 14GB FAT32 and 1GB EXT4 (from 16GB SD-Card.. 1GB is always non-existent)
What having an EXT4 partition enables you to do, is to have Apps/Data2EXT scripts which move apps to the EXT partition, giving you a lot more internal space.

bortak said:
1. Google is your friend
EXT4 is a file format used by Linux (Android = Linux). When threads talk about EXT4, they are referring to creating an EXT4 partition on your SD-Card e.g. have 14GB FAT32 and 1GB EXT4 (from 16GB SD-Card.. 1GB is always non-existent)
What having an EXT4 partition enables you to do, is to have Apps/Data2EXT scripts which move apps to the EXT partition, giving you a lot more internal space.
Click to expand...
Click to collapse
I smell a follow up question lurking...
via xda app

stankyou said:
I smell a follow up question lurking...
via xda app
Click to expand...
Click to collapse
How do I make EXT4 -__-

Which Ext4 is the best for me?

777ace said:
Which Ext4 is the best for me?
Click to expand...
Click to collapse
For a second there, I thought you were serious. Almost had me bro, almost had me.

bortak said:
For a second there, I thought you were serious. Almost had me bro, almost had me.
Click to expand...
Click to collapse
Hahaha
Sent from my HTC Desire using xda premium

bortak said:
1. Google is your friend
EXT4 is a file format used by Linux (Android = Linux). When threads talk about EXT4, they are referring to creating an EXT4 partition on your SD-Card e.g. have 14GB FAT32 and 1GB EXT4 (from 16GB SD-Card.. 1GB is always non-existent)
What having an EXT4 partition enables you to do, is to have Apps/Data2EXT scripts which move apps to the EXT partition, giving you a lot more internal space.
Click to expand...
Click to collapse
Ah okay and can't I Do that already with the built in app moving??
I know how to make the ext4 but didn't know why I would want to?

Wh000sher said:
Ah okay and can't I Do that already with the built in app moving??
I know how to make the ext4 but didn't know why I would want to?
Click to expand...
Click to collapse
Moving some of the app data to the sd-card is different to having an EXT partition and A2SD.
If you activate A2SD, the system will install and store your apps on the EXT partition, and your internal memory will not be filled up, and will remain at xxxMB. Furthermore, with an EXT partition you can use D2EXT, which makes your phone use the EXT partition as the data partition, so if you have 1GB EXT4, your phone will see 1GB memory.
If you use the inbuilt "move to sdcard" function, it only moves some of the sd-card to the android-secure folder on your sd-card, however your internal memory is still used up.

In addition, moving apps to sd-ext partition doesn't break app widgets like the stock app2sd method that Gingerbread use.

stankyou said:
In addition, moving apps to sd-ext partition doesn't break app widgets like the stock app2sd method that Gingerbread use.
Click to expand...
Click to collapse
Reason: With A2SD / DATA2SD / etc. Android still "thinks and tells" the Apps are still installed in the internal memory (at least this tells me my logic).

MatDrOiD said:
Reason: With A2SD / DATA2SD / etc. Android still "thinks and tells" the Apps are still installed in the internal memory (at least this tells me my logic).
Click to expand...
Click to collapse
That's how I see it as well. And makes apps available to use when you have it on usb transfer mode.
via xda app

MatDrOiD said:
Reason: With A2SD / DATA2SD / etc. Android still "thinks and tells" the Apps are still installed in the internal memory (at least this tells me my logic).
Click to expand...
Click to collapse
MatDrOid, since you are also on MW. How do I make use of my ext4 partition I created?
I am guessing there is a way to just move to the ext4 via a app?

Wh000sher said:
MatDrOid, since you are also on MW. How do I make use of my ext4 partition I created?
I am guessing there is a way to just move to the ext4 via a app?
Click to expand...
Click to collapse
if it's MW based on oxygen, instructions on how to enable ext4 partition are in the first post, no need to use an app.

No it's the cm version using s2e and I think it's working lol
Sent from my HTC Desire using xda premium

ext4 creation
neither easeus or minitool has an option to create ext4. how do i create the ext4? and i'm going to be dual booting wp7, so should it look like this:
ext4
fat32
wp7 partition
or like this:
fat32
ext4
wp7 partition
??? plz help

noobinius said:
neither easeus or minitool has an option to create ext4. how do i create the ext4? and i'm going to be dual booting wp7, so should it look like this:
ext4
fat32
wp7 partition
or like this:
fat32
ext4
wp7 partition
??? plz help
Click to expand...
Click to collapse
backup your sd card 1st
then use only 4ext recovery (requires s-off to change recovery) or gparted to create your partition (step 5 here)

sorry if i bump old post
Can i access my internal memory once i use Ext4?

nestleomega said:
sorry if i bump old post
Can i access my internal memory once i use Ext4?
Click to expand...
Click to collapse
With a root file explorer.

SD Partition on 32 GB card?

Hey guys,
I've searched around a lot but haven't found anything explicit to a 32 GB card's ideal partition table. I've read somewhere that the ext3 shouldn't be larger than 2 GB, is this really the case? Or is it device specific? And if thats the case, can the MT3G3 handle a larger than 2GB partition? Also, is there a point to having a swap partition? I know on Linux systems it helps with memory and the XDA SD partition guide mentions that we can have one if we wanted .. but is there a point to it?
My second question is ... should I get data2ext or a2ext? Or some other tool? The choice is pretty confusing, esp since it seems that some of them do the same thing?
I'm thinking about making the partitions equal between FAT32 and Ext3 (if swap won't make a difference).
PS - Its a Class 10 Sandisk card.

eMJaaay said:
Hey guys,
I've searched around a lot but haven't found anything explicit to a 32 GB card's ideal partition table. I've read somewhere that the ext3 shouldn't be larger than 2 GB, is this really the case? Or is it device specific? And if thats the case, can the MT3G3 handle a larger than 2GB partition? Also, is there a point to having a swap partition? I know on Linux systems it helps with memory and the XDA SD partition guide mentions that we can have one if we wanted .. but is there a point to it?
My second question is ... should I get data2ext or a2ext? Or some other tool? The choice is pretty confusing, esp since it seems that some of them do the same thing?
I'm thinking about making the partitions equal between FAT32 and Ext3 (if swap won't make a difference).
PS - Its a Class 10 Sandisk card.
Click to expand...
Click to collapse
don't know what a mt3gs works with, 32 should work but no larger I doubt. as for an ext partition there is no reason to make it smaller than internal memory and 2gb should be more than enough, I have never even used more than 1gb but 1~2gb should be the perfect point.
not sure if any of the roms here support ext4, if they do I would recomend that over ext3, it won't ware the card much fast (the extra journaling does but not much)
personaly kinux swap doesn't help much, not even on the g1 but give it a shot and see if it works for you, will help with multitasking
use apps2ext for sure, not data as it will be slow
Sent from my HTC Vision using xda premium

Thanks so much for the reply
I'll give this a go! I might as well have a swap partition as well since I have so much space should the swap be smaller than the ext3 partition? I'll also look into apps2ext .. but earlier came across int2ext in CronMod .. would that work?

eMJaaay said:
I'll give this a go! I might as well have a swap partition as well since I have so much space should the swap be smaller than the ext3 partition? I'll also look into apps2ext .. but earlier came across int2ext in CronMod .. would that work?
Click to expand...
Click to collapse
I'm not sure if creating swap on sd is supported on this device (at least, CM7). When I tried to partition SD using Rom Manager the device didn't see my ext partition if I selected swap partition size more than 0.
As for apps for managing ext partition usage, s2e app worked for me all right on CM9 and CM7. If you device is running CM9 you should be extra careful with such software. In example, Link2SD caused much trouble for me - constant app FC and I had to reinstall the system.
And be careful - it seems that s2e wipes ext partition at the first mount.
Sent from my T-Mobile myTouch 3G Slide using xda app-developers app

If im not mistaken, your kernel has to support using a swap partition.
Look into darktremors apps2sd. A. Lot of folks seemed to like that. It allows you to choose different setups if I remember right. (A2sd, data2sd, etc)
Data2sd would prob work ok since you have a class 10 card.
Also, if you are needing more space and are running a custom rom, look up mtd partitions in development forum.
Another nice trick is bind-mount data to cache.
Mt3gs does not support higher than 32gb. Ext4 support I think is available but only through kernels or scripts.
Hope that helps.
Sent from my SGH-T999 using xda app-developers app

Different ROMs support different a2sd scripts.....you will have to find a script compatible with your ROM.
I use A2SDGUI on my phone.
A swap partition acts a virtual ram for your phone if you run low on ram memory.Not required though.
Sent from my GT-S5570 using xda app-developers app

Thanks for the replies everyone
I'm running CM7.2 which has built in moving to SD but this hardly does anything :/ I've only got around 7 apps half of which I can't even update cos its running low on space :/
Quite a few partition articles / posts, etc mention ext3 no larger than 2 GB and a swap of 0 MB :/ I've got the CM kernel that came with the last stable release (in June this year) .. does that support swap? Is there even a point of adding a swap of 0 MB .. might as well not make a swap partition at all right? I'm partitioning using Gparted on my Linux! I think S2E supports that!
Seriously guys, thank you so so much for all your replies

Update: Link2SD didn't work. S2E worked on S-ON with a 28 ish GB FAT32 Primary Partition and a 2048 MB i.e 2 GB EXT4 partition.

Link2SD & Partitioning Help

Hey everyone. I'm going nuts trying to figure out how to use Link2SD. I partitioned my 32G SD card using Mini Partition Tool. I made a 1 gig partition. I've tried FAT32 and EXT2. After partitioning, i rebooted and tried Link2SD. I keep getting the error "Mount script cannot be created. [1] Segmentation fault mount ..."
Is there any solution for the xperia play? I manually moved my apps but still ran out of space keeping system tools like Titanium Backup on the internal. Maybe I should make them System Apps?

I use the following on mine setup:
64gb Card (Fat32 - Primary)
5GB for EXT4 partition (Make sure when you partition it to set it as primary.)
300mb Swap Partition
I had an issue with Link2SD too ad it was because I was not setting the EXT partition as primary, oncei formatted it again as primary Link2SD had not issue with it. Try that.

ozzmanj1 said:
I use the following on mine setup:
64gb Card (Fat32 - Primary)
5GB for EXT4 partition (Make sure when you partition it to set it as primary.)
300mb Swap Partition
I had an issue with Link2SD too ad it was because I was not setting the EXT partition as primary, oncei formatted it again as primary Link2SD had not issue with it. Try that.
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Click to collapse
Hey thanks for the reply. Just tried what you said. My FAT32, ext4, and Swap are all Primary and sill no go. I get the same error (segmentation fault mount -t ext4...). When Link2SD opens I've tried selecting all the options for the parition type too and none of them work.
Anything else I can try? Does the order of the partitions make any difference? Right now I am Primary, ext4, Swap.

echardcore said:
Hey thanks for the reply. Just tried what you said. My FAT32, ext4, and Swap are all Primary and sill no go. I get the same error. When Link2SD opens I've tried selecting all the options for the parition type too and none of them work.
Anything else I can try? Does the order of the partitions make any difference? Right now I am Primary, ext4, Swap.
Click to expand...
Click to collapse
Ah.... okay, I should have clarified this, only the fat32 and EXT partition are set to Primary. Swap Partition is set to logical, setting all three to primary causes issues.
Reformat only the swap and format to logical. Then in Link2SD force it to reinstall the scripting and see if that fixes it.

ozzmanj1 said:
Ah.... okay, I should have clarified this, only the fat32 and EXT partition are set to Primary. Swap Partition is set to logical, setting all three to primary causes issues.
Reformat only the swap and format to logical. Then in Link2SD force it to reinstall the scripting and see if that fixes it.
Click to expand...
Click to collapse
Okay then. New problem. Now Link2SD says "No SD card present" and android doesn't mount it either.
This is killing me slowly.
I'll try to reformat the whole card via a reader...
Didnt work. SD card still not recognized.

echardcore said:
Okay then. New problem. Now Link2SD says "No SD card present" and android doesn't mount it either.
This is killing me slowly.
I'll try to reformat the whole card via a reader...
Didnt work. SD card still not recognized.
Click to expand...
Click to collapse
OK. If your willing, lets start fresh. I am guessing you have your SDcard files backed up. Using Minitool partition delete all partitions and format as FAT32. Then create another partition of your size and format it as EXT (I prefer 4, EXT4) and set it to EXT(2,3,4,etc) and Primary. Then just for kicks, do not make a swap partition. I read that its not necessary, however I always do it..... well necessary only if you use a swap manager. So after the fat32 and ext partitions are made and minitool has created them. Take out the card, put it back into your pc and see if windows sees the fat32 partition. If good place it back into your phone and see if it upon bootup sees your sdcard.
Just in case as a reference here is the tutorial from the developer of Link2SD on how to set it up.
http://www.link2sd.info/description

ozzmanj1 said:
OK. If your willing, lets start fresh. I am guessing you have your SDcard files backed up. Using Minitool partition delete all partitions and format as FAT32. Then create another partition of your size and format it as EXT (I prefer 4, EXT4) and set it to EXT(2,3,4,etc) and Primary. Then just for kicks, do not make a swap partition. I read that its not necessary, however I always do it..... well necessary only if you use a swap manager. So after the fat32 and ext partitions are made and minitool has created them. Take out the card, put it back into your pc and see if windows sees the fat32 partition. If good place it back into your phone and see if it upon bootup sees your sdcard.
Just in case as a reference here is the tutorial from the developer of Link2SD on how to set it up.
http://www.link2sd.info/description
Click to expand...
Click to collapse
PC sees the FAT32. Phone sees the card now. Link2SD shows the partition but cant mount it and create the script for it. Also tried as ext2. Thanks for your help. I am going to try to update the ROM.
After updating the ROM to 2.4.0 and waiting 10 mins and rebooting as usual. was able to successfully link the partition! Thanks for your help!

No problem. Glad you got it working.
Sent from my R800at using xda premium

Got all my apps installed! Woot! Also, something must have been messed up with my previous flash.. I wasn't able to restore apps the newer way from titanium backup. I had to do it the old way one by one.
phone is going to make a great gaming alternative to my SGSII.

Help needed partitioning an sd card

Hey guys, im trying to partition a microsd card (2gb, samsung), into FAT and ext4 for use with link2sd, using Minitool Partiticion Wizard.
Now, the Fat partition turns out well, but the ext4 one keeps ending up like unpartitioned space.
I tried formating into ext2, ext3, linux swap, change size, cluster size, no result. The only file sistem thats succesfuly is FAT, FAT32, NTFS.
Thanks in advance!

CCXAlex said:
Hey guys, im trying to partition a microsd card (2gb, samsung), into FAT and ext4 for use with link2sd, using Minitool Partiticion Wizard.
Now, the Fat partition turns out well, but the ext4 one keeps ending up like unpartitioned space.
I tried formating into ext2, ext3, linux swap, change size, cluster size, no result. The only file sistem thats succesfuly is FAT, FAT32, NTFS.
Thanks in advance!
Click to expand...
Click to collapse
Have u choose "primary" for the ext4 partition? Lots of tutorial available, just google it.

appman1234 said:
Have u choose "primary" for the ext4 partition? Lots of tutorial available, just google it.
Click to expand...
Click to collapse
Yes, i chosed primary for the both partitions.
Anyway i kinnda fixed it, i chosed FAT for both partitions then i formated the second one from fat into ext4 and it seems to work for now.