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Cwm 5.0.20 - emmc - to format or not to format

I know the drill when installing a new ROM is to wipe wipe wipe but I just updated to CWM 5.0.20 and now there's a "format /emmc" option. Format this dir also? Cache, data, dalvik, system ...and now emmc?

Well I formatted it. It didn't touch anything on my external SD (which was really my own concern). Anyone know where to get a listing of dirs and partitions? I'd like to read up on it.

I believe emmc is the internal
storage (aka internal sd). If you have any pics or music on it or just moved from a stock ROM I would back it up first.
Sent from my LG-P999 using xda premium

[Q] rom flash without sd card

Could use some help... I've flashed many roms before but this is my first doing so to a device without sd card storage (i9023). How would I go about flashing a rom to my phone? and how can i nandroid backup without it being deleted when I wipe the device?

Don't worry bro... Wiping Data(factory reset), Dalvik, and Cache, won't also wipe your /sdcard partition.
/sdcard can be wiped out with "format" which can be found on "mounts and storage" section.

OK, thanks. just to confirm, when you say /sdcard, you refer to the internal storage correct?
syntax_gosong said:
Don't worry bro... Wiping Data(factory reset), Dalvik, and Cache, won't also wipe your /sdcard partition.
/sdcard can be wiped out with "format" which can be found on "mounts and storage" section.
Click to expand...
Click to collapse

wethead4 said:
OK, thanks. just to confirm, when you say /sdcard, you refer to the internal storage correct?
Click to expand...
Click to collapse
Yes, that's correct.
"/sdcard" won't be formated if you do wiping for other partition.

furthermore, even you wiped sdcard, you can also mount usb to your PC and transfer file after you wipef.
one more thing, there is one thing called "Odin" can allow you flash without sdcard

Wondering why my data transferred over when I installed CM10.1.

Before I installed CM10.1 my phone was a stock Verizon Samsung Galaxy SIII with JellyBean 4.1.1 on it. I had all of my apps, pictures, etc. on it. (I also have no External SD card). I ended up rooting the phone and installed ClockWorkMod I pushed wipe/factory reset within the ClockWorkMod menu (up/power/home). I also wiped the caches and Dalvik cache. I then installed CM10.1. Once CM10.1 was installed I went to settings > backup & reset and then did a Factory data rest. This did yet again another factory reset with CM10.1.
I am wondering how in the world I still have all of my 500 images / videos in my Gallery that were on my original stock JellyBean 4.1.1. Could someone please tell me. Also, please tell me what I should have done to get a completely fresh installation without a single thing from the past. The only thing I guess I could have done was a factory reset when I was on JellyBean 4.1.1 to wipe everything, then install CM10.1.
(BY THE WAY I always have Back up my data, backup account, Automatic restore all UNCHECKED)

The factory data reset doesn't wipe the InternalSD, it just removes apps and settings and puts the phone back to how it came out of the box (settings wise). To delete all the data on your internal SD card, go to Mounts and Storage and you'll see an option for "format /data and /data/media (/sdcard)". That will delete everything on your internalSD.
Here's the catch, though. If you don't have an EXTERNAL SD with the rom you want to flash on it, you'll wipe off whatever rom you were going to flash, leaving you with a phone that has nothing to "boot up".
If you want to start clean, wipe /system, /data, /cache, and dalvik cache, flash your rom, then format the internal SD, don't do it the other way around.
I think that'll work....someone else chime in if I'm wrong about wiping sd after rom intall (that'll get rid of the /0 folder...could cause a problem booting up...)
The easiest way is to just buy an external sd card....doesn't have to be big (2 gig), put your flashable zip on it, wipe /system, /data, /cache, internal sd, and dalvik cache, then flash the zip on the external.

letinsh said:
The factory data reset doesn't wipe the InternalSD, it just removes apps and settings and puts the phone back to how it came out of the box (settings wise). To delete all the data on your internal SD card, go to Mounts and Storage and you'll see an option for "format /data and /data/media (/sdcard)". That will delete everything on your internalSD.
Here's the catch, though. If you don't have an EXTERNAL SD with the rom you want to flash on it, you'll wipe off whatever rom you were going to flash, leaving you with a phone that has nothing to "boot up".
If you want to start clean, wipe /system, /data, /cache, and dalvik cache, flash your rom, then format the internal SD, don't do it the other way around.
I think that'll work....someone else chime in if I'm wrong about wiping sd after rom intall (that'll get rid of the /0 folder...could cause a problem booting up...)
The easiest way is to just buy an external sd card....doesn't have to be big (2 gig), put your flashable zip on it, wipe /system, /data, /cache, internal sd, and dalvik cache, then flash the zip on the external.
Click to expand...
Click to collapse
I actually have an external SD card where I keep CM10.1 and gapps for JellyBean 2.4.1. So I can just go into mount and storage and click every single format option there except for the external SD one right. Then I can install CM10.1 and gapps. Right?

HunterT said:
I actually have an external SD card where I keep CM10.1 and gapps for JellyBean 2.4.1. So I can just go into mount and storage and click every single format option there except for the external SD one right. Then I can install CM10.1 and gapps. Right?
Click to expand...
Click to collapse
yeppers. That's the best way to make sure you're starting so fresh and so clean, clean.

After wipe i can't mount usb storage

Hi all, i have a huge problem. Yesterday i wiped everything in my rom with cwm, wiped data, sd, cache, dalvik and system. I saved on my pc a folder with some files i need to flash and some backups. I would like to mount the usb storage from the recovery, put the files in and flash normally through cwm. BUT, and there is a but, my phone is perfectly view by the pc (it says also Nexus s in periferical) but doesn't see the drive when i mount the usb storage? Do you know why? Is not a problem of drivers, because the phone is perfectly seen. Now i can't boot, because i don't have a SO, and i can't mount the usb storage from cwm. Is there a method to flash roms .zip from fastboot? I'd need the .img file, not the .zip ones. How do i solve?
Thank you very much

I solved by downloading the factory images from google and flashing them from bootloader

thranduil93 said:
I solved by downloading the factory images from google and flashing them from bootloader
Click to expand...
Click to collapse
did you manage to partition your internal sd card on nexus s?

ben303 said:
did you manage to partition your internal sd card on nexus s?
Click to expand...
Click to collapse
i erased everything and tried to do the mount through recovery, and it worked

cant help you

[Q] FORMAT Data/Media... ?

I would like to format my /dat/media.. and then I would like to re-flash the ROM I am using. Since we all know the Note 5 does not have a sdCard port/reader
I can not figure out were to put my ROM that I will be flashing. There is no safe place to store it is there if I do a full FORMAT of /data/media. If I
format /data/media wont that wipe everything ?? even my image file of my ROM. Normally I would store it on an external sdCard then format /data/media..
and then copy the ROM image file back from the sdCard to the phones internal sdcard.
Bottom line .... I want to WIPE my entire phone EVEN /data/media then re-flash my ROM.
Thank you for any tips help.
My phone currently is Rooted and running [MULTI-LANG-6.0.1] TEKXodus HYBRID N5/S7Edge URv7.5E 5/04/16 N920X/G928X

re: internal sd
Thibor69 said:
I would like to format my /dat/media.. and then I would like to re-flash the ROM I am using. Since we all know the Note 5 does not have a sdCard port/reader
I can not figure out were to put my ROM that I will be flashing. There is no safe place to store it is there if I do a full FORMAT of /data/media. If I
format /data/media wont that wipe everything ?? even my image file of my ROM. Normally I would store it on an external sdCard then format /data/media..
and then copy the ROM image file back from the sdCard to the phones internal sdcard.
Bottom line .... I want to WIPE my entire phone EVEN /data/media then re-flash my ROM.
Thank you for any tips help.
My phone currently is Rooted and running [MULTI-LANG-6.0.1] TEKXodus HYBRID N5/S7Edge URv7.5E 5/04/16 N920X/G928X
Click to expand...
Click to collapse
If you have twrp recovery, it will not touch your internal sdcard or any of it's contents unless
you purposely click on the advanced wipe option indicating that you actually want to format it.
By default the internal sdcard in twrp is not check marked.
Simply doing a "Wipe" and a "Factory Reset" in twrp will not format, wipe or delete anything
located in your internal sdcard.
Good luck,
Have a great day!

Misterjunky said:
If you have twrp recovery, it will not touch your internal sdcard or any of it's contents unless
you purposely click on the advanced wipe option indicating that you actually want to format it.
By default the internal sdcard in twrp is not check marked.
Simply doing a "Wipe" and a "Factory Reset" in twrp will not format, wipe or delete anything
located in your internal sdcard.
Good luck,
Have a great day!
Click to expand...
Click to collapse
Yes BUT you missunderstand what I am trying to do. I want to WIPE internal memory. I want to wipe all traces of old programs located both on the internal SD and also located in data/media
Make sense ??
If I do it your way it will still leave all the stuff in the internal area and without doing a format DATA ( YES ) the stuff in /data/media will also still be untouched.. I want all traces of old user installed programs gone.
Help ?

re: wipe/format internal sdcard
Thibor69 said:
Yes BUT you missunderstand what I am trying to do. I want to WIPE internal memory. I want to wipe all traces of old programs located both on the internal SD and also located in data/media
Make sense ??
If I do it your way it will still leave all the stuff in the internal area and without doing a format DATA ( YES ) the stuff in /data/media will also still be untouched.. I want all traces of old user installed programs gone.
Help ?
Click to expand...
Click to collapse
With twrp thats easy too, simply click Wipe and then click "advanced wipe" and there you will see options
for each individual type of wipe, Wipe Data, System, Cache, Dalvik and "Wipe Internal SDCARD".

Misterjunky said:
With twrp thats easy too, simply click Wipe and then click "advanced wipe" and there you will see options
for each individual type of wipe, Wipe Data, System, Cache, Dalvik and "Wipe Internal SDCARD".
Click to expand...
Click to collapse
My friend -
I am so sorry, but I am still confused. So were would I put my image file (my new ROM) so it is safe from a wipe since you are saying it is ok to do this:
Wipe: cache devcache data internal system and then FORMAT DATA ( data/media )
??
To me this seems like it will wipe the ENTIRE PHONE ... were would a safe place to put the ROM be so I can flash it after ..??

Thibor69 said:
My friend -
I am so sorry, but I am still confused. So were would I put my image file (my new ROM) so it is safe from a wipe since you are saying it is ok to do this:
Wipe: cache devcache data internal system and then FORMAT DATA ( data/media )
??
To me this seems like it will wipe the ENTIRE PHONE ... were would a safe place to put the ROM be so I can flash it after ..??
Click to expand...
Click to collapse
Copy the image file into your computer then after the wipe copy it back into the phone while the phone is still in the twrp screen.
The new twrp 3.0.2 allows USB file transfers while twrp is running.
Sent from my SM-G928F using Tapatalk

Misterjunky said:
Copy the image file into your computer then after the wipe copy it back into the phone while the phone is still in the twrp screen.
The new twrp 3.0.2 allows USB file transfers while twrp is running.
Sent from my SM-G928F using Tapatalk
Click to expand...
Click to collapse
Ok I need to upgrade TWRP I guess. I am running v2.8.7.1 !! and I can not get files to my phone from the pc. I think ... unless I am doing it wrong ???
Please could someone help me. I need to know how to get TWRP 3.0.2 onto my phone. Do I need to odin it ?? I am trying to get a working kernel onto my phone.... Please help me ...
I thank you
John

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I am sorry for posting 2 posts in the forum. The 2 posts sort of run together now
and are messy, so If you can help me with my boot/loop/freeze issue, please
just go here: http://forum.xda-developers.com/tmobile-galaxy-note5/help/off-phone-t3375446
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Thank you all !!