[Q] "Wipe cache partition" in recovery mode seems useless? What is it for exactly??
Hi. I'm using Samsung Galaxy Ace, Android 2.3.6, rooted.
I had 2 apps with cache data:
1. the system app "Internet" = 444KB
2. a user app called "RedLaser" (for reading QR codes) = 45KB
I turned off phone, went into recovery, then "wipe cache partition", then reboot.
It did nothing! The two apps still had cache, and I just deleted them manually in Settings -> Manage Applications.
So what does the "wipe cache partition" do anyway?
Also, if a phone is unrooted, is there a way to clean the dalvik cache?
Thanks all!
Its for wiping the cache of your phone application..some times if you not do this then you r apps will crash in the new rom..so its optional thing.but some times it needed...understood??
shyamjptpm, did you even read the details of my post? The cache of those two apps were not deleted through "wipe cache partition" in recovery mode. So I was wondering what it does, exactly, since it DOES NOT wipe the apps' cache.
The cache is an app cache, but not a cache of application data. You wipe that through application management (or manually with a file explorer or shell).
Think of it as an Android cache that it uses for apps and components.
Hey Archer, an app cache? Like the dalvik cache? The dalvik is for starting apps faster, correct? So is "Dalvik cache" same as the cache referred to in "wipe cache partition"?
MarlonKaye said:
Hey Archer, an app cache? Like the dalvik cache? The dalvik is for starting apps faster, correct? So is "Dalvik cache" same as the cache referred to in "wipe cache partition"?
Click to expand...
Click to collapse
No it's not apps - I explained that badly. It's regularly accessed data and app components, but not app-specific data. The Dalvik cache is the application cache - they are two different things.
Additionally depending on which recovery you are using, wiping the cache might not properly work all the time, that is why you read so many posts saying wipe +3; meaning to run the wipe cache (and dalvik) at least 3 times. I know I had issues with one specific recovery and switched to another because of it...
Archer said:
No it's not apps - I explained that badly. It's regularly accessed data and app components, but not app-specific data. The Dalvik cache is the application cache - they are two different things.
Click to expand...
Click to collapse
Hey, is it possible to wipe cache partition without getting into recovery mode?
And wiping the cache partition and dalvik cache will delete my game progress??
Please clarify this for me bro...
Related
quick question, im new to rooting the transforner and i just want to know, when i wipe to install prime will it erase my music that is on the internal storage? If so, is there a different way to wipe to keep certain files? Cause i also have my titanium backup files on internal as well, thanks in advance.
First of all, your title made me laugh for a good 1 minute. Somehow, "question about wiping" just doesn't sound very technical and sound more like it has something to do with our bodily functions.
No, "wiping" cache and data will not touch your files. Android is different than windows. Windows OS has 1 big partition where everything is in there. Android has 12 partitions, each one has it's own purpose. When you wipe the data partition, what you're really wiping is app data partition. There is also a user data partition where all your files are kept. Unless you do a format of your sdcard in the advance menu, all your user files are safe.
So, before you install a custom rom, make sure you wipe cache and data/factory reset. Also wipe dalvik cache. Trust me, all your porn files will still be there waiting for you.
Sorry, I have a weird sense of humor.
Lol, thanks buddy. Ive never had an android device with an internal sdcard so i was a little concerned. Thanks again.
goodintentions said:
So, before you install a custom rom, make sure you wipe cache and data/factory reset. Also wipe dalvik cache.
Click to expand...
Click to collapse
I was wondering, is a data/factory wipe always necessary? When I flashed Revolver 3.9.3 for the 1ste time from stock rom, I did a data/factory wipe, cache wipe and dalvik cache wipe in CWM. When updating this Revolver rom to 3.9.5 using zip-file, I only wipe cache and dalvik cache. On my Moto I wipe cache and dalvik cache before and after the zip update when updating a custom rom, but I'm not sure if the latter is necessary. I guess a data/factory wipe is only necessary when flashing a new base rom?
wiping is usually recommended as sometimes if you install with out wiping it will cause weird problems :/
I have a few question in the menu of CWM.
Correct me if I'm wrong.
-reboot system now (reboots system)
-apple update from sd card ( what does this do? )
-wipe data/factory reset (you have to do this everytime u flash a new rom)
-wipe cache partition (what does this do?)
-Install zip from sd card (install rom and kernels)
-backup and restore (make back ups and restore)
-mounts and storage (what does this do?)
-Advance (battery calibration, dalvik cache, right?
-power off ( shuts down )
Edit:
When I see rom and kernel that says 'Clear cache' is that partition cache?
From eagle blood
WIPE WIPE WIPE
wipe data
wipe cache
wipe dalvik
back to main screen
mounts and storage select format/system <<< (What is this? Is this required before you can install any rom?)''
--
Also, if I click wipe data/factory reset, than I don't need to do wipe cache and dalvik right?
I know for a fact that...
Wipe cache- just wipes the extra cache (does what it says)
Apply update- can be used to install updates like kernels if the zip is changed to update.zip
Yes when it says wip cache it means the cache partition, and you still need to wipe both caches after a factory reset.
Hope this helped!
So everytime you install a new rom, it's best to do
-wipe data/factory reset
-wipe cache partition
-wipe dalvik cache
right?
nitrogen618 said:
So everytime you install a new rom, it's best to do
-wipe data/factory reset
-wipe cache partition
-wipe dalvik cache
right?
Click to expand...
Click to collapse
Updating ROM:
-wipe cache partition
-wipe dalvik cache
-wipe data/factory reset(good in practice, but not necessary)
Changing ROM:
-wipe data/factory reset
-wipe cache partition
-wipe dalvik cache
-Format System
How do I format the system?
I'm asking this because I'm going to get this phone in like 1-2 days.
Is it necessary to format system? Say Eagleblood to cm7.
When changing kernel, I should do only cache partition and dalvik cache right?
EDIT:
http://forum.xda-developers.com/showthread.php?t=1158377
What is this? Seems like people deleted their internal partition? What caused it?
Sorry for being a noob. :/
Edit2:
Say I got my phone running stock gingerbread, and I have CWM installed. And I wanna flash CM7.
Are these the correct steps?
-wipe data/factory reset
-wipe cache partition
-wipe dalvik cache
Than install from sd card and select rom.
nitrogen618 said:
How do I format the system?
I'm asking this because I'm going to get this phone in like 1-2 days.
Is it necessary to format system? Say Eagleblood to cm7.
When changing kernel, I should do only cache partition and dalvik cache right?
EDIT:
http://forum.xda-developers.com/showthread.php?t=1158377
What is this? Seems like people deleted their internal partition? What caused it?
Sorry for being a noob. :/
Edit2:
Say I got my phone running stock gingerbread, and I have CWM installed. And I wanna flash CM7.
Are these the correct steps?
-wipe data/factory reset
-wipe cache partition
-wipe dalvik cache
Than install from sd card and select rom.
Click to expand...
Click to collapse
Format system is under mounts and storage in recovery.
Is it necessary to format system? Say Eagleblood to cm7. Yes
When changing kernel, I should do only cache partition and dalvik cache right? Correct
Say I got my phone running stock gingerbread, and I have CWM installed. And I wanna flash CM7. Are these the correct steps?Almost
Should be:
-wipe data/factory reset
-wipe cache partition
-wipe dalvik cache
-Format system
prettyboy85712 said:
Format system is under mounts and storage in recovery.
Is it necessary to format system? Say Eagleblood to cm7. Yes
When changing kernel, I should do only cache partition and dalvik cache right? Correct
Say I got my phone running stock gingerbread, and I have CWM installed. And I wanna flash CM7. Are these the correct steps?Almost
Should be:
-wipe data/factory reset
-wipe cache partition
-wipe dalvik cache
-Format system
Click to expand...
Click to collapse
What's the consequence if I don't '-Format System?'
Also, if I format system, that means everything even the rom will be deleted right? Won't mess up partition table or anything like that right for cwm?
nitrogen618 said:
What's the consequence if I don't '-Format System?'
Also, if I format system, that means everything even the rom will be deleted right? Won't mess up partition table or anything like that right for cwm?
Click to expand...
Click to collapse
This is my first Android device, coming from a iPhone 3GS.
I have flashed rom before using CWM, but that was on my friend's HD2.
nitrogen618 said:
So everytime you install a new rom, it's best to do
-wipe data/factory reset
-wipe cache partition
-wipe dalvik cache
right?
Click to expand...
Click to collapse
Dont forget to backup, just if something goes wrong. Thats before doing the wipes.
Sent from my LG-P999
nitrogen618 said:
What's the consequence if I don't '-Format System?'
Click to expand...
Click to collapse
Force closing all the time
nitrogen618 said:
Also, if I format system, that means everything even the rom will be deleted right? Won't mess up partition table or anything like that right for cwm?
Click to expand...
Click to collapse
Yes. Everything will be deleted. The partitions will not be touched.
Everything I use is as follows:
Wipe data factory reset, this clears all data on your phone, including the present rom and kernel, to make room for the new one.
Wipe cache partition, this clears all saved data and stuff you've been doing on your previous rom.
Install zip from SD card (External SD)
Install zip from internal SD card, normally when you download a rom from your browser lies here.
Advanced:
Wipe Dalvik cache, this I'm not sure what it precisely does, though it clears data from previous roms.
Key test, this is mainly used for fixing broken or not working keys.
And reboot system now speaks for itself.
That's all I use for flashing anything
Sent from my LG-P999 using xda premium
I have samsung galaxy ace rooted running on ics (myth rom). 2 days ago i formatted (factory data reset) my phone . i have a total inernal memory of 180 mb. but after formatting it it shows only 117 mb left. therefore i did it for the second time,then too it showed the same .what should i do ????? please help me and tell me how to completely format it ....
do complete wipe
wipe data/factory
wipe dalvic cache
wipe data cache
wipe battery status
goto advanced>there you can find this
what is dalvic wipe? where to wipe battery status ????
There is no noticeable memory degredation, even if you flash over 9000 times.
You don't need to wipe the battery stats.
The dalvik-cache are cache files that are needed to run apps, and it gets recreated on boot if you wipe it (so the purpose of wiping it, is to get a freshly generated dalvik cache).
Sarvesh Sawant said:
what is dalvic wipe? where to wipe battery status ????
Click to expand...
Click to collapse
Dalvic cache is the dalvic compiler cache
The battery status is deleted by the following method
Goto cwm> advanced> wipe battery status...
Sent from my GT-I9100G using XDA
Try df -h in terminal and you'll see your system and sd patitions.
I did a complete wipe of data (dalvic,battery stats ,factory data reset etc.) then too it is showing the same. Is there any other way or should I approach Samsung Gallery?
i mistakenly wiped the cache and dalvik cache ..what will happen inside?? it normally booted and nothing seems to be changed ....so please tell what ares the consquences
Nothing
wiping cache- Means that The useless data of the Internet browser, Google play and etc
wiping Dalvik Cache- It Frees Up the Internal Storage Of The Device
thanks
I'm using lollipop ROM and sometimes there are problems and I wipe cache partition but what about dalvik ? Because lollipop uses art
"Wipe dalvik cache" is a legacy title (kind of).. It will wipe your current virtual machine cache.. You can check it by wiping and rebooting (if android optimizes apps on next boot, dalvik/ART cache was wiped)
NeriL said:
"Wipe dalvik cache" is a legacy title (kind of).. It will wipe your current virtual machine cache.. You can check it by wiping and rebooting (if android optimizes apps on next boot, dalvik/ART cache was wiped)
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Click to collapse
OK ,yes android optimizes apps but is there effect on performance or no ?
Khaled Neda said:
OK ,yes android optimizes apps but is there effect on performance or no ?
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Click to collapse
There may be some boost after 2nd boot because of cleaning cache of uninstalled apps and caches that got bigger and bigger over time
Sent from NeriL.device using NeriL.preferredApp