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formating external SD in ext4 ?

Hi !
I just installed the Lag Fix in my Samsung Galaxy S GT-I9000B and looks like it is fine.
As far I understand, the lag fix patch formats the internal SD as ext4 to have more stability and speedy.
So I am wondering if the external SD card would have similar benefits if I format it as ext4 too.
I don't have a spare external SD to check it my myself, so if anyone could provide any information, would be nice.

late but
Hi
I have an external sd card and i want to have a second partition in ext4, to put somme date on it (larges files)
i read and test since 15 days and what i can said is
you need to have a first partition (primary in fat32 on the sd card)
the second partition in ext4 is not seen by android os !!! I mean, there is no way to mount automaically these partition at boot and use it.
I have found a old lagfix from mimocan which mount external ext4 , but it is to store applications as we do in sdcard. I do believe we can use for data but it is old now we have kernel and rom with ext4 in native mode and i don't find how use ext4 on external card for data instead of program (with link2sd for exemple)
link2sd or app2sd only works with internal sd card !
regards

[Q] Problem with ext4 partition on my memory card

I have kingston 32gb memory card, class 6.
I maked 30gb fat32 & 1gb ext4 partition through gparted.
Everything seems to be ok. But it's not. Ext4 is not working. Like it's invisible.
When i refresh memory card I get some error sign near ext4 partition, and when i click for more information:
Anyone knows where problem might be?

anyone with solution?

**added picture to 1st post**

hi
looks like you want to do the same thing than me but ... as i learn at this time, there is no way to use ext4 partition on external sd card, just with some tools on internal sdcard.
android doesn't have script and code to mount under /mnt ext4 partitons just FAT32 !!!!!!!! great

[Q] Mount ext4 fs on our Skyrocket

I want to use link2sd and already partitioned my sd card into ext4 and fat32. Can someone point out a thread that explains how to do so? All i've found is for the sgs4g and other phones

[Q] microSD 4GB ext4 ??

Yes I know this is a stupid question.. :laugh:
I mean, if I formatted my microSD to ext4, will it recognize by my phone ??
I want to format my microSD to ext4 for performance. My kernel (BAM Custom Kernel #14) supports ext4..

[Q] Can Clockworkmod read ext4 formatted sd cards?

I can´t remember correctly, but I think few days ago I was not able to read a CM ROM from my external SD card that was formatted with ext4.
So, does Clockworkmod support ext4 or does it not? I badly want ext4 to avoid the 4GB file size limit of fat32.
Thank you.
EDIT: Now I know. I have CWM version 6.x from CM 10.2 nightly and CWM cannot read ext4 formated volumes. Though I read CWM was meant to support ext4!? Obviously it does not.
EDIT2: Today I was able to mount a USB drive connected to the phone that was formatted with ext4. I do not know, why I am able to mount this ext4 device now and why I was not able to mount my ext4 formatted sdcard.