Hi,
I mean, When it can be usefull to Wipe Cache and/or Dalvik or I don't know.. ^^ for example after flashing a new nightly, if it can make the phone faster.
or when it's totaly useless to wipe something,
it would be very cool, thanks
Actually full wiping is only necessary while switching roms. And dalvik wipe when installing mods or kernel updates (quarx). You can actually do dalvik wipes without any bad consequences-Android just generates the cache again
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Hey guys
I had started to use nightly builds. My question is should I have to wipe factory n Cache?
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Nope, if you continue to use the nightlies, just wipe dalvik cache,
If you come from different rom, just wipe data and cache and dalvik cache.
Once you are on the nightlies you never wipe anything. Don't listen to any nonsense about caches and dalviks just go to recovery, flash nightly, reboot!
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Thank you.. do I have to wipe if I'm switching to different rom of same version?
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You're losing no data wiping cache and dalvik, why not do it then, it saves you from trouble.
rentaric said:
You're losing no data wiping cache and dalvik, why not do it then, it saves you from trouble.
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Because it doesn't "save you from trouble." But I'm not going to argue about it. The OP asked if he had to wipe when upgrading nightlies and the answer is No.
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Plz tel about this... Toll then do I have to wipe if I'm flashing different rom of same android version!?
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ancilary said:
Plz tel about this... Toll then do I have to wipe if I'm flashing different rom of same android version!?
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Yes for different roms you must factory reset.
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rentaric said:
You're losing no data wiping cache and dalvik, why not do it then, it saves you from trouble.
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Correct.
matt2053 said:
Because it doesn't "save you from trouble." But I'm not going to argue about it. The OP asked if he had to wipe when upgrading nightlies and the answer is No.
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You are so wrong. Of course he needs to wipe Dalvik and Cache even if he installs another nightly. Its because the new nighlties bring new apps versions, or new kernel changes. Deleting Dalvik and cache forces the Android to reload the Dalvik cache for all the apps. Also, it saves you from trouble of incompatibility or FC's.
ancilary said:
Plz tel about this... Toll then do I have to wipe if I'm flashing different rom of same android version!?
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Different ROM same Android - wipe Data, Dalvik, Cache.
Same ROM same Android - wipe Dalvik, Cache.
brainmaster said:
Correct.
You are so wrong. Of course he needs to wipe Dalvik and Cache even if he installs another nightly. Its because the new nighlties bring new apps versions, or new kernel changes. Deleting Dalvik and cache forces the Android to reload the Dalvik cache for all the apps. Also, it saves you from trouble of incompatibility or FC's.
Different ROM same Android - wipe Data, Dalvik, Cache.
Same ROM same Android - wipe Dalvik, Cache.
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Well you can have your superstitions but there is no rational reason to manually wipe your cache or your dalvik cache when upgrading CM nightlies, and that comes straight from the developers of the ROM who are more knowledgeable than I am. None of the CM devs have EVER suggested it, and when asked, have said that it is not something that should be done. I will take their word over yours.
EDIT: This is the closest I think we will find to a definitive answer: http://review.cyanogenmod.com/#change,4933
So, CM development team does not suggest a wipe of dalvik or cache when upgrading. The nightly installation instructions do not mention wiping dalvik or cache. I personally have flashed several hundred nightlies over the last year and have never wiped cache or dalvik when upgrading. Many many other users have flashed hundreds of nightlies each and have not wiped cache or dalvik and have not had problems. There is no reason to do this action, it is completely pointless. It is like saying "you must have your phone pointing to the east when you boot." Sure maybe it does not hurt anything but we don't really need to keep spreading this superstition.
EDIT: In re-reading this I feel like my posts come across as disrespectful and/or antagonistic. I simply disagree with what was said and I feel I have good reason to. But the OP can read about both points of view and then try for himself and choose what works best for him.
CWM recovery was developed from CM7 devs. So why do you think that they've integrated or made a option to wipe dalvik if that is not needed?
Especially if installing another kernel, wiping Dalvik is a must.
But you are right, the OP can choose himself either he will do that or not.
I don't think that your post is disrespectful and/or antagonistic, you have just expressed your opinion. If we don't discus issues with each other we are not gonna make any progress on learning.
brainmaster said:
CWM recovery was developed from CM7 devs. So why do you think that they've integrated or made a option to wipe dalvik if that is not needed?
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There are lots of options in CWM recovery that are not needed when flashing
Like I said, in the link it is expressed very clearly that the developers of the ROM feel it is "completely pointless" (exact words) to wipe cache and dalvik when updating to newer CM build.
There are times when a user or developer might want to wipe cache or dalvik and so those options do exist. There are other partitions that a user or developer might want to format from time to time for various reasons as well. And the option to do those things is there in CWM recovery. But that does not mean they should be done every time, just because they are there.
In the link I posted, a submission was made to CM code to make it easier for users to wipe dalvik and cache and install a zip all in one command. The submission was rejected because the reviewers agreed that it was "completely pointless."
Why after so much time do you think "Wipe Dalvik Cache" is still obscurely placed in the "Advanced" menu of CWM Recovery? It would be very easy and simple to wipe cache and dalvik automatically when installing a ROM through CWM Recovery or at least put the option on the main page. Do you think that Koush just likes to give users a hard time? Do you think he wants it to be difficult for them to update their ROMs? I don't think so. I think he understand that it is an advanced function that can be useful in some circumstances but is not typically needed in 99% of cases.
The developers also note that the cache is invalidated via hashes automatically. So its basically auto wiped.
The only reason that I wipe is when the nightly contains a new kernel, dalvik should be wiped to eliminate possible problems.
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Hey guys just a quick question about installing nightly builds on the nook. When Rom Manager asks whether to wipe data/cache and what not, if I select it, will it wipe the internal memory completely? leaving no user files behind? or will it only wipe the system files?
It will wipe everything and it will be a fresh install.
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If you update, just wipe cache
It wipes the /data partition but doesn't wipe /sdcard /sd-ext or /met/emmc.
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EGM92 said:
Hey guys just a quick question about installing nightly builds on the nook. When Rom Manager asks whether to wipe data/cache and what not, if I select it, will it wipe the internal memory completely? leaving no user files behind? or will it only wipe the system files?
Click to expand...
Click to collapse
Just wipe Davlik.
if boot is longer than normal after wipe, it's normal!
votinh said:
If you update, just wipe cache
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patruns said:
Just wipe Davlik.
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So... just wipe Davlik Cache is what you guys are saying?
Good question helped out a newb here
Jiv_au said:
So... just wipe Davlik Cache is what you guys are saying?
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Click to collapse
Correct
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Jiv_au said:
So... just wipe Davlik Cache is what you guys are saying?
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Click to collapse
Note: wipe cache and wipe Dalvik cache are 2 different things.
+ wipe cache is a quick way to clean the current running ROM
+ wipe Dalvik is a completely clean.
After wipe Dalvik, next time it boots, it will take a lot longer time due to the device has to re-compile the whole thing before ROM start running and booting.
I think I need to drop a few lines about wipe cache/Dalvik.
As I posted above, I said it wiped clean.
Apparently, I am NOT 100% correct.
I just updated to nb198, wiped cache (formatting /cache) then wipe Dalvik cache.
After done updating ROM, booting up, I expected everything clean, completely fresh.
It's not the case, I went to Market and all old search history were still shown. Not only with Market but other apps too.
So
a. either wipe cache/Dalvik is NOT completely clean wipe or
b. it was completely clean but somehow, those old cache info, which stored somewhere I don't know, get automatically restored back.
Okay, I did a quick read of the FAQ for CWR, and came across these:
Wipe cache partition
Wipes the cache partition of the device to clear all the data accumulated there over use. This is often used before installing a new ROM, app, kernel or any similar mod via recovery.
Wipe Dalvik Cache
Allows you to wipe the cache for the Dalvik virtual machine (the custom-built Java virtual machine for Android).This is required before most ROM installations and at other occasions too, for fixing some problems.
So, I'm taking this guide on board and will wiping Cache AND Davlik. So that's two steps prior to installing a new CM7 nightly build.
votinh said:
I think I need to drop a few lines about wipe cache/Dalvik. *snip*
a. either wipe cache/Dalvik is NOT completely clean wipe or
b. it was completely clean but somehow, those old cache info, which stored somewhere I don't know, get automatically restored back.
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You didn't happen to store them in uSD card? Or perhaps app data/cache are separate from system data/cache...
Will look into it further...
Hi everybody! I have got a question, can I do only wipe cache & wipe dalvik cache when I pass from White rabbit(CM7 modified) to CM9?? Just to not installing all apps
Full wipe is recommended.
Definitely full wipe needed or else you will encounter some issues
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Questions go in the Q&A section
As u are shifting major versions of CM u need to do a factory reset too.
1.Wipe data
2.Factory Reset(U ll loose everything. Except the SD card content)
3.Wipe Cache partition
Then flash the ROM.
It is recommanded in Defy update guide for CyanogenMod.
Hi,
I had MIUI GB stable running on my defy and wanted to check out the latest CM10 build, so here is what i did...
1. Booted into Recovery and Cleared Cache/Dalvik Cache.
2. Created a back up of my existing ROM
3. Clean wiped my phone and installed CM10
But since i didnt like the CM10 build much i decided to go back to MIUI GB...but got stuck...
I Wiped Data/Cache but then when i tried to wipe the Dalvik Cache it simply did nothing...
And since then i am not able to wipe the Dalvik Cache and so m pretty much stuck with CM10 now...
Please help me wipe the Dalvik Cache....
Thanks
I am having the same problem. Did you ever figure out out?
jnsanders said:
I am having the same problem. Did you ever figure out out?
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Yes i did... what rom were u using before...??
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Use ultimate wipe ext3 version to down grade from cm10
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I usually clean flash everything but in order to do it on this device you wipe the system data, cache, delvik cache. does that wipe the internal storage as well so i would end up with nothing on my tablet to flash? im only asking due to if im not home near a computer to use that wipe and flash rom program and i thought i remember reading somewhere if you wipe system data the tablet is completely empty.
If it does wipe it completely from doing that in the recovery system, can i at least dirty flash to different roms without severe issues?
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kyhassen said:
I usually clean flash everything but in order to do it on this device you wipe the system data, cache, delvik cache. does that wipe the internal storage as well so i would end up with nothing on my tablet to flash? im only asking due to if im not home near a computer to use that wipe and flash rom program and i thought i remember reading somewhere if you wipe system data the tablet is completely empty.
If it does wipe it completely from doing that in the recovery system, can i at least dirty flash to different roms without severe issues?
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Do not wipe internal storage. Just do a factory reset, wipe cache, wipe dalvik.
thank you. i wasnt sure. when i started rooting this. i thought i saw somewhere that said if you do system data or factory reset wipe, it wipes the internal storage. i was try the the prime rom. im on smoothrom and its awesome but i want something new.
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