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How Do I Do an EXT4 Wipe?

i got virtuous unity 2.37 and want to install 2.39. its suggested i do a ext4 wipe before nstalling 2.39. i want to make sure i'm doing this right.
so, to do a full ext4 wipe, i must boot into recovery and then wipe all data, cache, then go to advance and wipe dalvik? is this correct?

Maybe you must go in Wipe / Format menu,then format sd-ext.

Go to mount and storage, click format sd-ext and click yes. Your ext4 partition is now wiped.

itachi1706 said:
Go to mount and storage, click format sd-ext and click yes. Your ext4 partition is now wiped.
Click to expand...
Click to collapse
hi itachi.. does your advice regard wiping the sd card?
also, someone suggested that an ext4 wipe involves going to Wipe/Format and selecting wipe data/factory reset, wipe dalvik cache, format system, format data, format cache and format boot. is this true?

trapzz said:
hi itachi.. does your advice regard wiping the sd card?
also, someone suggested that an ext4 wipe involves going to Wipe/Format and selecting wipe data/factory reset, wipe dalvik cache, format system, format data, format cache and format boot. is this true?
Click to expand...
Click to collapse
It does not affect the FAT partition of the SD card. Only the Ext partition. And by wiping data, dalvik, formating system, data, cache and boot, you are literally doing a full wipe of the phone which people normally do when they change from 1 Rom to another.

itachi1706 said:
It does not affect the FAT partition of the SD card. Only the Ext partition. And by wiping data, dalvik, formating system, data, cache and boot, you are literally doing a full wipe of the phone which people normally do when they change from 1 Rom to another.
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Click to collapse
thats exactly why im doing a full wipe.. to upgrade my rom to a higher version. but your way of wiping data seems like it involves wiping data from the sd card, which is risky and unnecessary when installing/upgrading a rom. and it can wipe out the rom on the sd card that you want to install anyway. so then whats the point'?

trapzz said:
thats exactly why im doing a full wipe.. to upgrade my rom to a higher version. but your way of wiping data seems like it involves wiping data from the sd card, which is risky and unnecessary when installing/upgrading a rom. and it can wipe out the rom on the sd card that you want to install anyway. so then whats the point'?
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Click to collapse
I don't mean changing to a higher version, I mean changing Rom (like from cyanogen to miui) . If you are upgrading to a higher version you do not need to wipe data. All you need to do is just wipe cache and dalvik, boot and system too if you want. This way you will get updated to the latest version while still retaining your application data.
And yes, technically you do wipe the sdcard, but only the EXT partition, which is where your apps are placed in if you use A2SD+. Your FAT partition, which is the one recognised by the computer and where you put all your data in, is not affected. Hence it will not wipe out the Rom you are trying to install on the sdcard.
Sent from my HTC Original Desire using Tapatalk

Wiping dalvik & cache and all partitions except sd card.

Is it correct that you wipe all partitions except sd card and dalvik & cache before you install a new Rom.and after the Rom is installed do you wipe the dalvik & cache again one more time.If you do wouldn't wiping the dalvik & cache after your new Rom is installed erase,remove the new Rom that you just installed.Is it alright to just wipe the partitions except the sd card before installing a sense Rom over a sense Rom or vice-versa going from a sense to a nonsense Rom and or nonsense to a sense Rom. Thanks...
Sent from my HTC Sensation 4G using XDA

Mesaman2012 said:
Is it correct that you wipe all partitions except sd card and dalvik & cache before you install a new Rom.and after the Rom is installed do you wipe the dalvik & cache again one more time.If you do wouldn't wiping the dalvik & cache after your new Rom is installed erase,remove the new Rom that you just installed.Is it alright to just wipe the partitions except the sd card before installing a sense Rom over a sense Rom or vice-versa going from a sense to a nonsense Rom and or nonsense to a sense Rom. Thanks...
Sent from my HTC Sensation 4G using XDA
Click to expand...
Click to collapse
Hi,
If you want a clean install ,then it is correct to wipe all the partitions except the sd card.
A simpler way is to use a SuperWipe zip.
This does it all for you.
You only need to do it once,before installation of the ROM.

When I change Roms, Iwipe cash, then wipe dalvik cash, then I wipe data factory reset, then install zip from SD , reboot, and I'm finished. I don't format all partitions except sd. Maybe I should be doing that. I only wipe BEFORE installation and not after. It's been working for me I've never had a problem yet thank God! Usually I pay attention to what the developer says to do on the Rom site. Each Rom has specific flashing instructions. If the Developer asks to format partitioning of sd card I would do it because every Rom is different.
I just have not came across those instructions yet. I suppose everyone does things a little differently also. This is just the way I do it. Others might do it differently. I have not had any problems yet and I flash a lot! Just follow recommended instructions and you will be fine. Best wishes. Happy flashing !
Sent from my Sensation 4G using xda premium

Thank you guys I appreciate it greatly.
Sent from my HTC Sensation 4G using XDA

malybru said:
Hi,
If you want a clean install ,then it is correct to wipe all the partitions except the sd card.
A simpler way is to use a SuperWipe zip.
This does it all for you.
You only need to do it once,before installation of the ROM.
Click to expand...
Click to collapse
Check your rom thread before using superwipe as it causes issues with some builds. An alrernative is to wipe user data/factory reset, then wipe both caches using 4ext recovery.
from HTC Pyramid / Tapatalk 2

[Solved] Right Way to Wipe/Format using 4EXT Touch Recovery

I've been using 4EXT Touch Recovery to wipe/format before flashing certain roms. Is there a right way on how to wipe/format using 4EXT Touch?
This is how I do it (correct me if I'm wrong):
1. wipe date/factory reset
2. wipe cache
3. wipe cache + dalvik
4. wipe dalvik cache
5. wipe battery stats
6. format system
7. format data
8. format boot
9. format all partitions (except sdcard)
10. format sdcard
11. flash rom

wh0d0es said:
I've been using 4EXT Touch Recovery to wipe/format before flashing certain roms. Is there a right way on how to wipe/format using 4EXT Touch?
This is how I do it (correct me if I'm wrong):
Click to expand...
Click to collapse
If you are flashing an update of the same ROM do "wipe dalvik cache + cache" (in case the Developer has not clearly stated that the update requires full wipe)
If you are flashing a new ROM use "wipe all partition (except sdcard)" it will do all the wipes from the wipe menu, no need to repeat it
And wiping the sdcard every time you install a ROM clearly does not make any sense, you are deleting all you pictures, music and all other files that are not related to any ROM you are using

amidabuddha said:
If you are flashing an update of the same ROM do "wipe dalvik cache + cache" (in case the Developer has not clearly stated that the update requires full wipe)
If you are flashing a new ROM use "wipe all partition (except sdcard)" it will do all the wipes from the wipe menu, no need to repeat it
And wiping the sdcard every time you install a ROM clearly does not make any sense, you are deleting all you pictures, music and all other files that are not related to any ROM you are using
Click to expand...
Click to collapse
I didn't know that "format all partition (except sdcard)" is the same from 1 to 8. I'll try using it from now on every time I install new roms. Also, I thought that wiping my sdcard every time I install rom is to make that rom fully utilized/functional. And that is why I back up all my pictures, music, and all other files in my laptop. Anyhow, thank you for your simple but very relevant response.

There are some ROM specific files on the SDcard but a full wipe (all partitions except sdcard) clears them too
Sent from my HTC Desire S

amidabuddha said:
There are some ROM specific files on the SDcard but a full wipe (all partitions except sdcard) clears them too
Sent from my HTC Desire S
Click to expand...
Click to collapse
This is noted... Thank you for all the info's... Greatly appreciated! :highfive:

[Q] How to format system in TWRP

I am a little confused on the terminology. I have done some searching and I came across the same question: http://forum.xda-developers.com/showthread.php?t=2107425 but it didn't really explain what manual format/system means for TWRP...
For instance, to install Slim Bean 4.2 build 8, it suggests to do a full wipe and then manual format system before flashing the rom.
How would I do this in TWRP? I want to make sure that this is DIFFERENT from format /data right? It is also different from "just" wiping "system" through "Advanced wipe" in TWRP?
Thanks in advance guys!

duketerm said:
I am a little confused on the terminology. I have done some searching and I came across the same question: http://forum.xda-developers.com/showthread.php?t=2107425 but it didn't really explain what manual format/system means for TWRP...
For instance, to install Slim Bean 4.2 build 8, it suggests to do a full wipe and then manual format system before flashing the rom.
How would I do this in TWRP? I want to make sure that this is DIFFERENT from format /data right? It is also different from "just" wiping "system" through "Advanced wipe" in TWRP?
Thanks in advance guys!
Click to expand...
Click to collapse
If you want to flash a new rom you have to go into TWRP
Wipe: Cache + Dalvik Cache + System
Wipe System is the same like formatting system

Falcon_X said:
If you want to flash a new rom you have to go into TWRP
Wipe: Cache + Dalvik Cache + System
Wipe System is the same like formatting system
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Click to collapse
Thanks! Appreciate it. I was just wondering if formatting system is more of an active process that's different from wipe (eg. writing in zeros).

duketerm said:
Thanks! Appreciate it. I was just wondering if formatting system is more of an active process that's different from wipe (eg. writing in zeros).
Click to expand...
Click to collapse
no its same
wipe = format

You don't need to wipe anything for flashing a newer version of some ROMs such as nighties. A factory is usually recommended to wipe the cache, dalvik cache and userdata to return the ROM to stock. Then when you flash a new ROM it will overwrite your current one.

Format System during SLIM installation
Hi,
Formatting the System is not risk the whole data i have on my device? in the past (as far as i remember,) doing it, deleted all the information i had on the device completely so it was even impossible to recognize it on the PC even all the drivers were well installed.
Looking forward for your advice.
Miron
Falcon_X said:
If you want to flash a new rom you have to go into TWRP
Wipe: Cache + Dalvik Cache + System
Wipe System is the same like formatting system
Click to expand...
Click to collapse

glad I came across this thread, was always wondering about TWRP being so used to ClockWorkMod

does format data also wipe my android os As well?

[Q] HTC Explorer Booting Issue

I am having a HTC Explorer... I have unlocked the bootloader and have rooted my phone. I have CWM Recovery installed.. I treid installing custom ROM, but after installing once I reboot, it keeps showing the custom ROM's animated loading screen and never proceeds forward. I have tried 4 different custom ROM's and also tried to install Stock ROM but same happens.
During installation I don't get any sort of error. But once I reboot the phone it is stuck on the loading animation. I have already tried formatting data, clearing partition cache and clearing dalvik cache...
Can any one help regarding this issue.. ?
P.S: I don't have any backup..I know I should have backed up...but still...

cyberian04 said:
I am having a HTC Explorer... I have unlocked the bootloader and have rooted my phone. I have CWM Recovery installed.. I treid installing custom ROM, but after installing once I reboot, it keeps showing the custom ROM's animated loading screen and never proceeds forward. I have tried 4 different custom ROM's and also tried to install Stock ROM but same happens.
During installation I don't get any sort of error. But once I reboot the phone it is stuck on the loading animation. I have already tried formatting data, clearing partition cache and clearing dalvik cache...
Can any one help regarding this issue.. ?
P.S: I don't have any backup..I know I should have backed up...but still...
Click to expand...
Click to collapse
Firstly specify which which roms you tried which recovery you are using.
Well to say..
If you are using sense based Roms.. Then ext partition is needed.. Which can be done in recovery- Advanced- Partition sd card..
Partitioning sd card will format your card so take a backup of it
If you are using sense based roms then use recovery which mounts ext Like TWRP or Philz or CWM Latest one..
If not a sense based rom:
1. Go to recovery
2. Wipe data/factory reset.
3. Wipe cache partition.
4. Advanced -> Wipe dalvich cache.
5. Mounts and storage -> format /boot, /cache, /system , /sd-ext(if present).
6. Dont format anything else.
7. Install zip -> flash the rom.
8. Reboot
If you are still facing problem PM me..

shubhojit89 said:
Firstly specify which which roms you tried which recovery you are using.
Well to say..
If you are using sense based Roms.. Then ext partition is needed.. Which can be done in recovery- Advanced- Partition sd card..
Partitioning sd card will format your card so take a backup of it
If you are using sense based roms then use recovery which mounts ext Like TWRP or Philz or CWM Latest one..
If not a sense based rom:
1. Go to recovery
2. Wipe data/factory reset.
3. Wipe cache partition.
4. Advanced -> Wipe dalvich cache.
5. Mounts and storage -> format /boot, /cache, /system , /sd-ext(if present).
6. Dont format anything else.
7. Install zip -> flash the rom.
8. Reboot
If you are still facing problem PM me..
Click to expand...
Click to collapse
I tried the following ROM's
Speed Droid
Cyanogen Mod 10
Even tried Stock ROM..
Thanks for the reply..Let me try what you suggested..