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simple question regarding wiping cache partition on ics

hello
i would like to install cm9 on my ns 9020t [currently running androidme 1.1.0}
and in installation instruction, posted by author of the rom is stated , that cache partition has to be wiped prior to flash rom.
so im asking very nicely;
if i didnt partition my sd storage yet, do i have to wipe cache partition to install cm9 rom?
i guess not, cuz it could cause total failure of my sd storage, but i always prefer to ask.

[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
Click to expand...
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?

Wipe Internal Storage

I would like to wipe internal storage to make better/clean install of the ROM (
with old S3 i make a folder on Ext SD with .zip file
reboot to cwm
backup
wipe all (cache + data + system + internal storage)
install (rom + gapps + kernel)
reboot
As you know on 1+ there is no Ext Sd
Someone has already tried to do:
copy .zip file to a folder on PC
reboot to TWRP (2.8.0.1)
make a backup
connect phone to pc and mount data
copy backup from 1+ to Pc
advanced wipe (cache + data + system + internal storage)
copy .zip file from PC to 1+
install (rom + gapps + kernel)
reboot
Can it work?
P.s. I have no OTG cable or USB

You should be able to wipe everything and install the Rom-Zip via ADB-Push.

Why dont you try to install the new rom in recovery with a normal wipe and after you falsh the rom + gapps do a wipe of the internal sdcard should have the same affect ?

are you out of your mind? DO NOT WIPE INTERNAL!!! WIPE SYSTEM AND DATA ONLY
here's my thread for when you wipe internal and brickloop your phone!

markbencze said:
are you out of your mind? DO NOT WIPE INTERNAL!!! WIPE SYSTEM AND DATA ONLY
here's my thread for when you wipe internal and brickloop your phone!
Click to expand...
Click to collapse
Wow. Interesting thread. However, I wipe my internal storage (for a "full" wipe) everytime I flash a new rom or even the weekly of a same rom and luckily I haven't ran into the problems in your thread.
to the OP: I put all of my zip files in a USB otg so flashing is a bit simpler. This includes all of my nandroid and media.
I would wait to wipe the internal storage until you figure out which route you want to use (USB-otg or ADB)
Until then a normal factory reset in your recovery should be good. Also as @Hogyoku metioned you can erase internal from within the Rom to get the same effect.
Sent from my One A0001 using XDA Free mobile app

Mojar7070 said:
Wow. Interesting thread. However, I wipe my internal storage (for "full" wipe) evertime I flash a new rom or even the weekly of a same rom and luckily I haven't ran into the problems in your thread.
I do put all of my zip files in a USB otg so flashing is a bit simpler.
Sent from my One A0001 using XDA Free mobile app
Click to expand...
Click to collapse
That's not wise. You should never wipe internal plain and simple. All that s required for full wipe is system and data. If you continue doing so, you're going to find out the hard way one day

markbencze said:
That's not wise. You should never wipe internal plain and simple. All that s required for full wipe is system and data. If you continue doing so, you're going to find out the hard way one day
Click to expand...
Click to collapse
This i what the OP wanted i'm not saying it's smart .....
::I would like to wipe internal storage to make better/clean install of the ROM :

Hogyoku said:
This i what the OP wanted i'm not saying it's smart .....
::I would like to wipe internal storage to make better/clean install of the ROM :
Click to expand...
Click to collapse
who ever is saying to wipe internal doesn't know what they're doing. This is the last I will mention of this here. There is no need and it's dangerous. That's how efs and the persist files get wiped and you find yourself in some serious trouble.
when installing a rom all that is needed is wipe data and system. Not cache, not dalvik and certainly not internal.
So many people have a misconception on how to properly wipe and everything seems to think they need to wipe caches on top of system and data. Well guess what, when you wipe system and data the caches get wiped too so it's just an extra unneeded step. And some people will post crap saying to wipe 3 times when flashing etc. They are simply making things up

markbencze said:
who ever is saying to wipe internal doesn't know what they're doing. This is the last I will mention of this here. There is no need and it's dangerous. That's how efs and the persist files get wiped and you find yourself in some serious trouble.
when installing a rom all that is needed is wipe data and system. Not cache, not dalvik and certainly not internal.
So many people have a misconception on how to properly wipe and everything seems to think they need to wipe caches on top of system and data. Well guess what, when you wipe system and data the caches get wiped too so it's just an extra unneeded step. And some people will post crap saying to wipe 3 times when flashing etc. They are simply making things up
Click to expand...
Click to collapse
markbencze said:
That's not wise. You should never wipe internal plain and simple. All that s required for full wipe is system and data. If you continue doing so, you're going to find out the hard way one day
Click to expand...
Click to collapse
markbencze said:
are you out of your mind? DO NOT WIPE INTERNAL!!! WIPE SYSTEM AND DATA ONLY
here's my thread for when you wipe internal and brickloop your phone!
Click to expand...
Click to collapse
This is complete bull****. Internal wipe will NEVER destroy anything it just wipes the whole /data/ instead of leaving /data/media. If you want your usb storage / internal sdcard / whatever you call it to be erased that's the one to choose. For a complete clean install:
1. BACKUP EVERYTHING YOU MIGHT EVER NEED AGAIN.
2. Grab ROM and GAPPS and put it on internal storage
3. Boot recovery and wipe DATA, SYSTEM, CACHE (dalvik is not needed because it's located on /data)
3. Flash ROM and GAPPS
4. Wipe internal storage
5. Stop talking about things you don't know correctly

om22 said:
This is complete bull****. Internal wipe will NEVER destroy anything it just wipes the whole /data/ instead of leaving /data/media. If you want your usb storage / internal sdcard / whatever you call it to be erased that's the one to choose. For a complete clean install:
1. BACKUP EVERYTHING YOU MIGHT EVER NEED AGAIN.
2. Grab ROM and GAPPS and put it on internal storage
3. Boot recovery and wipe DATA, SYSTEM, CACHE (dalvik is not needed because it's located on /data)
3. Flash ROM and GAPPS
4. Wipe internal storage
5. Stop talking about things you don't know correctly
Click to expand...
Click to collapse
Omg man you are not helping things here. Do you think its just a coincidence that everyone with these bricks wiped internal?
Considering I found the fix to this issue I'm pretty sure I know what I'm talking about. But nice try.
Anyway I'm done here. I came here to help people recover from their bricks which I have done.

markbencze said:
Omg man you are not helping things here. Do you think its just a coincidence that everyone with these bricks wiped internal?
Considering I found the fix to this issue I'm pretty sure I know what I'm talking about. But nice try.
Anyway I'm done here. I came here to help people recover from their bricks which I have done.
Click to expand...
Click to collapse
That's really nice of you that you did that guide. But there is no way that bricks could have to do with that wipe. There is no way an internal wipe could corrupt any other partition than /data/ (efs, persist anything) beside of a bug in the recovery. Wiped internal several times on every phone and also the OPO with TWRP 2.8.0.1 and as you can see it's still running.

om22 said:
This is complete bull****. Internal wipe will NEVER destroy anything it just wipes the whole /data/ instead of leaving /data/media. If you want your usb storage / internal sdcard / whatever you call it to be erased that's the one to choose. For a complete clean install:
1. BACKUP EVERYTHING YOU MIGHT EVER NEED AGAIN.
2. Grab ROM and GAPPS and put it on internal storage
3. Boot recovery and wipe DATA, SYSTEM, CACHE (dalvik is not needed because it's located on /data)
3. Flash ROM and GAPPS
4. Wipe internal storage
5. Stop talking about things you don't know correctly
Click to expand...
Click to collapse
Although you are right about this I still think it ain't smart to advice this on this forum. A lot of noobs around here, much more than in any sub forum of a phone I ever owned.[emoji6]

om22 said:
This is complete bull****. Internal wipe will NEVER destroy anything it just wipes the whole /data/ instead of leaving /data/media. If you want your usb storage / internal sdcard / whatever you call it to be erased that's the one to choose. For a complete clean install:
1. BACKUP EVERYTHING YOU MIGHT EVER NEED AGAIN.
2. Grab ROM and GAPPS and put it on internal storage
3. Boot recovery and wipe DATA, SYSTEM, CACHE (dalvik is not needed because it's located on /data)
3. Flash ROM and GAPPS
4. Wipe internal storage
5. Stop talking about things you don't know correctly
Click to expand...
Click to collapse
Thank you

TWRP SD card wipe and new ROM install

Hello
I'm currently running a custom ROM (darkobas) but I'm having a few problems.
I would like to do a new fresh/clean install but would like to wipe everything, not only data and caches. TWRP gives me the chance to do a complete wipe, including SD card wipe/erase.
The problem is, if I do a complete wipe, I will loose the downloaded ROM and GApps and I wont be able to install anything!!!
How can I solve this?
Thank you for your help
Salomao

salomaoa said:
Hello
I'm currently running a custom ROM (darkobas) but I'm having a few problems.
I would like to do a new fresh/clean install but would like to wipe everything, not only data and caches. TWRP gives me the chance to do a complete wipe, including SD card wipe/erase.
The problem is, if I do a complete wipe, I will loose the downloaded ROM and GApps and I wont be able to install anything!!!
How can I solve this?
Thank you for your help
Salomao
Click to expand...
Click to collapse
Checkmark and wipe system, data and the two caches. Uncheck and leave your SD data card alone.

Do I need to format data (deleting everything) to install lineageOS?

Hello, forum!
My current Pixel 2 is using the stock google system but I haven't updated the OS since March, partly because it's rooted
and the update process is not as easy.
Now that google said it'd only support the phone till this December, I'm thinking to install lineageOS.
However according to its installation guide:
...
3. Now tap Wipe.
4. Now tap Format Data and continue with the formatting process. This will remove encryption and delete all files stored in the internal storage.
...
It's surprising that it need clear internal storage?
p.s. I may also think about installing Resurrection Rom. Does it require 'formatting data' then?

Afaik you must back up everything before installing new ROM, because when you install custom ROM you will wipe and format system and it will erase everything in your internal storage

If its rooted try modded version of twrp to backup your internal data as well

armuttaqin said:
Afaik you must back up everything before installing new ROM, because when you install custom ROM you will wipe and format system and it will erase everything in your internal storage
Click to expand...
Click to collapse
No, it's not, nobody wipes /data/media during rom replacement only /data.
However if his bootloader is locked, bootloader unlock will wipe everything, so before switching from stock a backup is must.

Alright, guys. Thanks for the input. Guess I'll just backup the internal storage and do as told.