When the guide says full wipe it means deleteing system, data, cache and davlik cache right?
Do i need to format my emmc too? What happens if i format it? TIA~
What guide? What are you trying to do?
just trying to confirm whether full wipe means formatting system data cache and dalvik cache
Miltani said:
just trying to confirm whether full wipe means formatting system data cache and dalvik cache
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Generally that's what it means. But if you wipe the first three you have wiped dalvik.
One of the reasons we asked what you were trying to do, you asked about wiping emmc too. It makes a difference what you are trying to wipe whether you try to do anything to emmc.
Edit: By emmc, did you mean the emmc media partition or emmc as the whole device? I can think of only one reason to wipe the emmc media partition, and that is if you are transferring the device to someone else and you want none of your stuff on there. I think a "factory reset" wipes everything except /system.
Sent from my Nook Color running ICS and Tapatalk
i meant formatting my /emmc
That is because i saw some traces of my photos thumbnails there even though i've moved the photos to my computer.
Miltani said:
i meant formatting my /emmc
That is because i saw some traces of my photos thumbnails there even though i've moved the photos to my computer.
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It won't hurt to erase everything in your media partition. Whatever the nook needs, it will rebuild. No need to format, just delete things with your file manager.
Sent from my Nook Color running ICS and Tapatalk
Related
When ever I go into cwr and press advanced then wipe dalvik cache, a error comes up saying e:not mounted
File exists.
Its something cloae to that. Then i click on yes to wipe and it works. But im just wondering why it says that. I tested on my brothers phone and his didnt say it.
Sent from my SGH-T959 using XDA App
Thats been a problem on some froyo roms, but shouldn't affect anything in my experience. Other devices have the same issue. I have seen it suggested that formatting your internal storage may fix the issue, but it didn't for me. All in all, I have not had a problem with wiping even when that error pops up.
hitman818 said:
When ever I go into cwr and press advanced then wipe dalvik cache, a error comes up saying e:not mounted
File exists.
Its something cloae to that. Then i click on yes to wipe and it works. But im just wondering why it says that. I tested on my brothers phone and his didnt say it.
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I'm assuming the message you recieve is
E:Can't mount /dev/block/mmcblk1p2
(file exists)
That partition (please note the bolded part) is for apps you have on your external sdcard. So if you do not have any apps on your external sdcard then you will get this message. The partition for your internal sd looks the same but ends in 0p2.
So in short: It's normal, don't worry about it, wipe your dalvik-cache like normal.
I'm thinking about wiping my Nook since I can't get WiFisleep to work anymore. But what will happen to all my books and comics stored on the EMMC then? I'm running cyanogen 7 from the internal memory with no traces of BN(the first thing you get when you boot is a small cyanogen logo). Do I have to back all those files up?
If you wipe data and Dalvik you most likely lose those files (depending on where you have stored this files to save). I would suggest backing them up to your uSD to be safe for now.
skeeterpro said:
If you wipe data and Dalvik you most likely lose those files (depending on where you have stored this files to save). I would suggest backing them up to your uSD to be safe for now.
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Wiping Davlik will not delete those files. I wipe it every time I upgrade to a higher nightly. In fact, it is all that I wipe. The real question is will an update or reflash solve the problem? If it were me, I would flash an update using ROM Manager, wiping Davlik and including gaaps in the update. If that does not solve the issue I would then start from scratch since a system wipe will be needed. However, backing up the apps first using Titanium Backup (but not system settings) will get you back after the new flash.
pat is right, wipe Dalvik doesn't touch files but skeeter also right as wipe /data, everything most likely gone with the wind
votinh said:
pat is right, wipe Dalvik doesn't touch files but skeeter also right as wipe /data, everything most likely gone with the wind
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Wiping /data will indeed wipe all downloaded applications and their associated settings but I think the OP is referring to media files stored on the emmc partition and this will not be touched by a data, system or cache wipe, just like SD card contents won't be touched.
I store some basic media files on internal emmc making use of about 4GB spare capacity. This gets scanned as well as the stuff stored on SD.
so i wanted to do a wipe and clean install a rom.
in twrp i did wipe > format data... and the internal storage apparently meant the sdcard...is all my data completely gonezo, cuz that is NOT good......
jewnersey said:
so i wanted to do a wipe and clean install a rom.
in twrp i did wipe > format data... and the internal storage apparently meant the sdcard...is all my data completely gonezo, cuz that is NOT good......
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Unfortunately yes all of your stuff it's gone. Factory reset is what you are supposed to do. Sorry bud.
Sent from my Galaxy Nexus
sonuva......
I adb'd my files over and reinstalled eos, but no file managers can delete anything off sdcard... permissions look good but still no dice
jewnersey said:
I adb'd my files over and reinstalled eos, but no file managers can delete anything off sdcard... permissions look good but still no dice
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When you chose FORMAT DATA, what did you do later to install a new rom?
Format Data = erase Internal Storage. You want to do a factory reset when changing ROMs
Noob question here. I've seen several ROMs that say factory rest, wipe cache, wipe dalvik, which I've done many times on my GS3 and ROM'd over and over. I see on some of the N7 ROMs that say the same, but they add format data and format system before installing. Before I switch ROMs I just want some clarification. Would formatting data and system not wipe the ROM I've downloaded as well as all other data on the device? Am I incorrect in my assumption that formatting will completely wipe everything clean?
Thanks for any help from those that know.
Factory reset is just fine. It wipes data while leaving data/media intact. Formatting data, IIRC, will also wipe data/media, which will erase your virtual sd card. As for system, that is generally taken care of by the install script, although I personally opt to wipe it prior to flashing just to err on the side of caution.
Sent from my Nexus 7 using Tapatalk HD
+1 najaboy's response
You generally do NOT want to "wipe data", as that destroys the pseudo- SD card, which is where you've got all your device backups. Got those backups elsewhere?
"wipe dalvik" or "wipe cache" are superfluous because:
(a) the dalvik-cache area is in the portion of the /data partition that gets wiped by the "Factory Reset" selection. *1
(b) the /cache partition also gets wiped with the "Factory Reset" *1, *2
A lot of the "wipe this, wipe that" instructions persists in ROM installation instructions for cargo cult reasons, and also because devs for prior generations of Android releases may have provided customizations such as symlinking to move the dalvik cache onto ext partitions of external SD cards and so forth. (In that case if you wiped /data first before dalvik-cache, the symlink would disappear, and if the freshly-installed ROM also used the same trick... you would be restarting a new ROM with an old dalvik-cache from a different ROM).
If you want to know what a particular ROM or other flashable .zip file is going to do, unzip the contents of folder
./META-INF/com/android/metadata/
from that ROM/flashable .zip and have a look at the updat*-script file from that folder. It's a plain text file - open it in wordpad or notepad.
Even if you are a non-programmer, you will be able to immediately see what wipes are being performed.
In general, the installer script for full ROM installs will wipe the /system partition explicitly, whereas add-on or update packages will not.
Since there is no guarantee that a inexperienced ROM developer won't do something like wiping (all of) /data, it's not unreasonable for you to look at installer scripts before you use them. You will find that some devs are sloppier than others with things like missing assert() conditions and so forth.
*1 For TWRP anyway; I haven't used CWM for the N7 yet, so I won't vouch for that one.
*2 Note that if a Stock recovery is in use, iirc the "Factory Reset" procedure wipes all of /data - including your pseudo-SD card. So it's definition of "Factory Reset" is different from that of TWRP. Beware; Make backups!
bftb0 said:
+1 najaboy's response
You generally do NOT want to "wipe data", as that destroys the pseudo- SD card, which is where you've got all your device backups. Got those backups elsewhere?
"wipe dalvik" or "wipe cache" are superfluous because:
(a) the dalvik-cache area is in the portion of the /data partition that gets wiped by the "Factory Reset" selection. *1
(b) the /cache partition also gets wiped with the "Factory Reset" *1, *2
A lot of the "wipe this, wipe that" instructions persists in ROM installation instructions for cargo cult reasons, and also because devs for prior generations of Android releases may have provided customizations such as symlinking to move the dalvik cache onto ext partitions of external SD cards and so forth. (In that case if you wiped /data first before dalvik-cache, the symlink would disappear, and if the freshly-installed ROM also used the same trick... you would be restarting a new ROM with an old dalvik-cache from a different ROM).
If you want to know what a particular ROM or other flashable .zip file is going to do, unzip the contents of folder
./META-INF/com/android/metadata/
from that ROM/flashable .zip and have a look at the updat*-script file from that folder. It's a plain text file - open it in wordpad or notepad.
Even if you are a non-programmer, you will be able to immediately see what wipes are being performed.
In general, the installer script for full ROM installs will wipe the /system partition explicitly, whereas add-on or update packages will not.
Since there is no guarantee that a inexperienced ROM developer won't do something like wiping (all of) /data, it's not unreasonable for you to look at installer scripts before you use them. You will find that some devs are sloppier than others with things like missing assert() conditions and so forth.
*1 For TWRP anyway; I haven't used CWM for the N7 yet, so I won't vouch for that one.
*2 Note that if a Stock recovery is in use, iirc the "Factory Reset" procedure wipes all of /data - including your pseudo-SD card. So it's definition of "Factory Reset" is different from that of TWRP. Beware; Make backups!
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Wow. Thanks for the very informative response. I will start looking deeper into the ROMs I'm interested in. :good:
crjjr said:
Wow. Thanks for the very informative response. I will start looking deeper into the ROMs I'm interested in. :good:
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Here's one of the ROMs that says to format system and data. It's the MMuzzy ROM....
http://forum.xda-developers.com/showthread.php?t=2043869
najaboy said:
Factory reset is just fine. It wipes data while leaving data/media intact. Formatting data, IIRC, will also wipe data/media, which will erase your virtual sd card. As for system, that is generally taken care of by the install script, although I personally opt to wipe it prior to flashing just to err on the side of caution.
Sent from my Nexus 7 using Tapatalk HD
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i don't know but correct me if im wrong, coz last time on my sgs captivate days, i used to flash all kinds of rom, then there is this rom that i tried to flash that requires to format system, so i tried that rom and format system in cwm.. then when it bootup my imei messed up! i do not know if thats the reason but after that incident, i never format system anymore, just playing with wipe cache/dalvik factory reset and format sdcard in cwm works fine..
Sent from my Nexus 7 using xda premium
I have just flashed my first rom on my s3, I have done a factory reset and cleared the cache but my internal memory is saying i have just under 4g out of 16 is that about right or have i messed up.
Thanks
Seems low, did you install a bunch of apps?
memory
disco1224 said:
Seems low, did you install a bunch of apps?
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No that was before I installed any apps
ryanslb said:
I have just flashed my first rom on my s3, I have done a factory reset and cleared the cache but my internal memory is saying i have just under 4g out of 16 is that about right or have i messed up.
Thanks
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Do you have pics, video, music or something on your internal sdcard? It doesn't get wiped (and it shouldn't) when doing factory reset or cache wipes. So if you wan't more space, backup important files to your pc and format internal sdcard.
Edit: All partitions (system, data, internal storage, cache) is in that 16gb flash chip, and if you make factory reset/data wipe and cache wipes, then only system, data and cache get wiped, not internal storage.
memory
jnr21 said:
Do you have pics, video, music or something on your internal sdcard? It doesn't get wiped (and it shouldn't) when doing factory reset or cache wipes. So if you wan't more space, backup important files to your pc and format internal sdcard.
Edit: All partitions (system, data, internal storage, cache) is in that 16gb flash chip, and if you make factory reset/data wipe and cache wipes, then only system, data and cache get wiped, not internal storage.
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How would I do that and would I loose My ROM doing that. Thanks
memory
ryanslb said:
How would I do that and would I loose My ROM doing that. Thanks
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No pictures or video
Please don't ask questions in General, there's a section dedicated to that