Database Users

Kernel troubles

I just installed a new kernel, and it caused a boot loop. How can I go back to my old stock kernel without using the RUU, because if use that, i'll lose my root :/

Did you clear your cache and dalvik cache before installing ?

No, was i supposed to? :/ sorry if i missed directions, i was pretty careless about this.

dhMassacre said:
No, was i supposed to? :/ sorry if i missed directions, i was pretty careless about this.
Click to expand...
Click to collapse
Yes. Always or you will get FC's and have to Factory Wipe and lose your data. If you have a nand backup, restore it prior to the kernal. ALWAYS backup before installing a kernal. Also they say use Amon RA Recovery. I guess ClockworkMod does not wipe the Dalvik Cache and Cache properly.
Make sure you read stuff over and over when it involves rooting, flashing a radio and kernel. I used the ClockworkMod to wipe the cache and dalvik cache and installed the Kernel and it disabled my usb and sdcard. That is not fun trying to get back working. Make sure you do that.

[Q] Format system,data, boot, Wipe cache, dalvic!!! Please help clarify

I am going from Autonootered 1.1 to the latest nightly CM7 with Dalgrins Kernel using CWM
Please advise
1. Before installing CM7 what all should I wipe / format
2. After installing CM7 and kernel what all should I wipe/format
Also when I update to a newer nightly later
1. Before installing the newer nightly what all should I wipe / format
2. After installing newer nightly what all should I wipe/format
3. When updating to a newer nightly do I nned to install Dalgrins kernel again
Thanks very much

Anyone ? would appreciate some help

Whenever I try to install a new nightly I have to wipe everything. If I don't all the apps when I try to open them just flash real quick then close. I have titanium backup so its not very hard restoring sense I can just restore all apps + data which makes it a very painless process.

In the Nook General forum user eyeballer has an excellent step-by-step guide for installing CM7. Follow his directions and you will be fine. In general, you do not need to do a complete wipe of everything to install CM7 or to update between versions of CM7.

Guys I tried searching and only found this thread
which didn't help me at all
Can someone please explain when to do each of the following?
Reformat
Wipe Data
Wipe Cache
Wipe Dalvik
I want to have the cleanest install, so do I do all?
Thanks
I will give thanks to all that help me clarify when to use what in what combination

eyecon82 said:
Guys I tried searching and only found this thread
which didn't help me at all
Can someone please explain when to do each of the following?
Reformat
Wipe Data
Wipe Cache
Wipe Dalvik
I want to have the cleanest install, so do I do all?
Thanks
I will give thanks to all that help me clarify when to use what in what combination
Click to expand...
Click to collapse
If you look in my tips thread linked in my signature, I explain what you need to wipe in what situation. But I will explain just a little here.
Ordinarily if you are moving from just one nightly to another nightly of the same rom, just wipe dalvik cache.
If you are moving from one type of rom to another, it is best to do just a factory reset. A factory reset wipes /data, /cache and clears any apps you installed to SD. (And a factory reset automatically wipes dalvik cache since it is located in /data and /cache.)
Never wipe /boot and the new rom automatically wipes /system so you should not have to ordinarily wipe that.
But I have found if you are moving from a CM rom back to stock you need to do a full format with my format zip in my tips thread. It formats /system, /data and /cache completely where using CWM does not.

leapinlar said:
1.Ordinarily if you are moving from just one nightly to another nightly of the same rom, just wipe dalvik cache.
2. If you are moving. from one type of rom to another, it is best to do just a factory reset.
3. A factory reset wipes /data, /cache and clears any apps you installed to SD. (And a factory reset automatically wipes dalvik cache since it is located in /data and /cache.)
4. Never wipe /boot and the new rom automatically wipes /system so you should not have to ordinarily wipe that.
5. But I have found if you are moving from a CM rom back to stock you need to do a full format with my format zip in my tips thread. It formats /system, /data and /cache completely where using CWM does not.
Click to expand...
Click to collapse
Thanks so much, I left you a thanks as well
can you explain 2 & 3 again? I have CWM. Is a factory reset same as wiping data? Thanks
Edit: Darn, only limited to 8 thanks per day, I'll get you back tomorrow

eyecon82 said:
Thanks so much, I left you a thanks as well
can you explain 2 & 3 again? I have CWM. Is a factory reset same as wiping data? Thanks
Edit: Darn, only limited to 8 thanks per day, I'll get you back tomorrow
Click to expand...
Click to collapse
Wipe is the same as formatting.
Factory reset is listed in CWM as 'factory reset/wipe data'. And it is shown on the main menu. It does what I said earlier, it wipes /data, /cache and clears apps installed to SD.
Wipe dalvik is shown in CWM in the 'advanced' menu.
Those wipes or formats that are shown in CWM under 'mounts and storage' should rarely be used.
Sent from my Nook Color running CM10 and Tapatalk.

leapinlar said:
Wipe is the same as formatting.
Factory reset is listed in CWM as 'factory reset/wipe data'. And it is shown on the main menu. It does what I said earlier, it wipes /data, /cache and clears apps installed to SD.
Wipe dalvik is shown in CWM in the 'advanced' menu.
Those wipes or formats that are shown in CWM under 'mounts and storage' should rarely be used.
Sent from my Nook Color running CM10 and Tapatalk.
Click to expand...
Click to collapse
wow, thank you so much! you have been a great help
Quick off-topic question:
I have the rooted STOCK ROM and I deleted/edited some system files. Should I revert back to a nandroid back up with the system files in tact, or should I be ok to flash the new official rooted JB ROM (when it comes out) with some system files missing and/or renamed? thanks =)

eyecon82 said:
Quick off-topic question:
I have the rooted STOCK ROM and I deleted/edited some system files. Should I revert back to a nandroid back up with the system files in tact, or should I be ok to flash the new official rooted JB ROM (when it comes out) with some system files missing and/or renamed? thanks =)
Click to expand...
Click to collapse
If you are going to flash the new JB ROM over the top of stock, you do not have to do anything to the stock ROM first. It will be wiped entirely by the new JB ROM as it is installed. But I would do a factory reset/wipe data first as I said in my earlier post.

leapinlar said:
If you are going to flash the new JB ROM over the top of stock, you do not have to do anything to the stock ROM first. It will be wiped entirely by the new JB ROM as it is installed. But I would do a factory reset/wipe data first as I said in my earlier post.
Click to expand...
Click to collapse
Oh ok, thanks! So, just to re-affirm, I don't have to revert back to a STOCK ROM with system files unedited in order to flash JB?
Before flashing JB rom, I will absolutely wipe data, cache, and dalvik prior to flashing! Thanks! :cyclops:

eyecon82 said:
Oh ok, thanks! So, just to re-affirm, I don't have to revert back to a STOCK ROM with system files unedited in order to flash JB?
Before flashing JB rom, I will absolutely wipe data, cache, and dalvik prior to flashing! Thanks! :cyclops:
Click to expand...
Click to collapse
No, no, no. Are you not reading my posts? You do not wipe data, cache, and dalvik when you install a new ROM. Just do a 'factory reset/wipe data'. That wipes everything for you. The other wipes are redundant!
And to re-iterate, you have to do NOTHING to stock before flashing the JB ROM. Leave it exactly as is.
Sent from my Nook Color running CM10 and Tapatalk.

leapinlar said:
No, no, no. Are you not reading my posts? You do not wipe data, cache, and dalvik when you install a new ROM. Just do a 'factory reset/wipe data'. That wipes everything for you. The other wipes are redundant!
And to re-iterate, you have to do NOTHING to stock before flashing the JB ROM. Leave it exactly as is.
Sent from my Nook Color running CM10 and Tapatalk.
Click to expand...
Click to collapse
Thanks. I got you now. I was just in a habit of doing that before. Even if it was redundant

leapinlar said:
If you look in my tips thread linked in my signature, I explain what you need to wipe in what situation. But I will explain just a little here.
Ordinarily if you are moving from just one nightly to another nightly of the same rom, just wipe dalvik cache.
If you are moving from one type of rom to another, it is best to do just a factory reset. A factory reset wipes /data, /cache and clears any apps you installed to SD. (And a factory reset automatically wipes dalvik cache since it is located in /data and /cache.)
Never wipe /boot and the new rom automatically wipes /system so you should not have to ordinarily wipe that.
But I have found if you are moving from a CM rom back to stock you need to do a full format with my format zip in my tips thread. It formats /system, /data and /cache completely where using CWM does not.
Click to expand...
Click to collapse
Can I pick your brain a little bit?
I had an odd thing happen to me......I rooted and went all delete-happy and deleted a bunch of stuff from system/app without making a nandroid backup...of course stuff stopped working properly, so I downloaded the stock rom rooted and flashed that (with wiping data, cache, and dalvik---even though wiping cache and davlik is unncessary as you explained), but those files I deleted were still missing
The only way I got them back was to do what is listed here (http://forum.xda-developers.com/show....php?t=1904099) and start all over from a non rooted state
Any idea why? If I would have flashed the rooted stock ROM, wouldn't it have wiped my /system too?
PS: I'm reading your tips thread now....just got off work

eyecon82 said:
Can I pick your brain a little bit?
I had an odd thing happen to me......I rooted and went all delete-happy and deleted a bunch of stuff from system/app without making a nandroid backup...of course stuff stopped working properly, so I downloaded the stock rom rooted and flashed that (with wiping data, cache, and dalvik---even though wiping cache and davlik is unncessary as you explained), but those files I deleted were still missing
The only way I got them back was to do what is listed here (http://forum.xda-developers.com/show....php?t=1904099) and start all over from a non rooted state
Any idea why? If I would have flashed the rooted stock ROM, wouldn't it have wiped my /system too?
PS: I'm reading your tips thread now....just got off work
Click to expand...
Click to collapse
You said you downloaded the 'stock rom rooted'. Where did you get that? Also as I explained in my tips thread, sometimes CWM does not wipe things as cleanly as it should. I cannot explain why. In those circumstances I flash my format zip from my tips thread. I suspect that that rom you said you downloaded that you said was rooted was not set up to format the /system.
Also that link you quoted does not work so I can't look at that page.

leapinlar said:
You said you downloaded the 'stock rom rooted'. Where did you get that? Also as I explained in my tips thread, sometimes CWM does not wipe things as cleanly as it should. I cannot explain why. In those circumstances I flash my format zip from my tips thread. I suspect that that rom you said you downloaded that you said was rooted was not set up to format the /system.
Also that link you quoted does not work so I can't look at that page.
Click to expand...
Click to collapse
I flashed this rooted STOCK ROM, the first link in the OP http://forum.xda-developers.com/showthread.php?t=1743923)?
but that didn't work, so I started all over using this http://forum.xda-developers.com/showthread.php?t=1904099
I hope the links work for you now
EDIT: MY THANKS WORK NOW, SO I THANKED YOU FOR ALL THE POSTS =)

eyecon82 said:
I flashed this rooted STOCK ROM, the first link in the OP http://forum.xda-developers.com/showthread.php?t=1743923)?
but that didn't work, so I started all over using this http://forum.xda-developers.com/showthread.php?t=1904099
I hope the links work for you now
EDIT: MY THANKS WORK NOW, SO I THANKED YOU FOR ALL THE POSTS =)
Click to expand...
Click to collapse
You flashed Samsung roms to your Nook Color? This is a Nook Color forum. All the stuff I have been telling you applies to the Nook Color and the CWM built for the Nook Color. Are you on another device?

leapinlar said:
You flashed Samsung roms to your Nook Color? This is a Nook Color forum. All the stuff I have been telling you applies to the Nook Color and the CWM built for the Nook Color. Are you on another device?
Click to expand...
Click to collapse
crap! lol...I mean to post for SGSIII...sorry for hijacking this thread
I truly am sorry, I just did a search, which landed me to this, but I ended up hijacking it

eyecon82 said:
crap! lol...I mean to post for SGSIII...sorry for hijacking this thread
I truly am sorry, I just did a search, which landed me to this, but I ended up hijacking it
Click to expand...
Click to collapse
LOL, well I learned something here. If users start asking questions that do not quite jib with having a Nook Color, I had better ask more questions before I start spouting stuff. I am really glad I added assert statements to my zips to make sure the user is on a Nook Color before the flash will attempt to install. It could have been a real disaster for you if you had tried to flash my format partitions zip on your SGIII and it was allowed to install. I am going to make sure I have that assert statement in every zip I make, just to protect users.
But most of what I told you about CWM should apply to the SGIII version of CWM.

leapinlar said:
Wipe is the same as formatting.
Factory reset is listed in CWM as 'factory reset/wipe data'. And it is shown on the main menu. It does what I said earlier, it wipes /data, /cache and clears apps installed to SD.
Wipe dalvik is shown in CWM in the 'advanced' menu.
Those wipes or formats that are shown in CWM under 'mounts and storage' should rarely be used.
Sent from my Nook Color running CM10 and Tapatalk.
Click to expand...
Click to collapse
So wipe and format are the same?
Why do they have them listed separately in the first place in CWM if they do the same thing?
Thanks.
Sent from my SPH-L710 using xda app-developers app
---------- Post added at 09:43 AM ---------- Previous post was at 09:42 AM ----------
leapinlar said:
LOL, well I learned something here. If users start asking questions that do not quite jib with having a Nook Color, I had better ask more questions before I start spouting stuff. I am really glad I added assert statements to my zips to make sure the user is on a Nook Color before the flash will attempt to install. It could have been a real disaster for you if you had tried to flash my format partitions zip on your SGIII and it was allowed to install. I am going to make sure I have that assert statement in every zip I make, just to protect users.
But most of what I told you about CWM should apply to the SGIII version of CWM.
Click to expand...
Click to collapse
True. Even though I got off topic for the sgsiii thing most of my questions are universal to all devices
Sent from my SPH-L710 using xda app-developers app

Need info about cyanogen mod installation

Hey guys
I had started to use nightly builds. My question is should I have to wipe factory n Cache?
Sent from my Nexus S using XDA Premium App

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!
Sent from my Nexus S using XDA App

Thank you.. do I have to wipe if I'm switching to different rom of same version?
Sent from my Nexus S using XDA Premium App

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.
Click to expand...
Click to collapse
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.
Sent from my Nexus S using XDA App

Plz tel about this... Toll then do I have to wipe if I'm flashing different rom of same android version!?
Sent from my Nexus S using XDA Premium App

ancilary said:
Plz tel about this... Toll then do I have to wipe if I'm flashing different rom of same android version!?
Sent from my Nexus S using XDA Premium App
Click to expand...
Click to collapse
Yes for different roms you must factory reset.
Sent from my Nexus S using XDA App

rentaric said:
You're losing no data wiping cache and dalvik, why not do it then, it saves you from trouble.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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!?
Sent from my Nexus S using XDA Premium App
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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.
Sent from my Nexus S 4G using Tapatalk

[Q] Updating paranoidandroud rom guide

I know there's a lot of info on this subject, but im still confused about a few things related to simply updating to a new version of same rom.
some says i have to wipe all, clear cache and dalvik cache every time, others talk about dirty updating which i guess is without wipe, but do i still need to clear cache and dalvik, or just dalvik cache?, and do i have to flash gapps every time i just upgrade same rom?
like going from 2.50 > the latest 2.52, what i did was:
1. downloaded both pa_grouper-2.52-27OCT2012-190304.zip, and gapps-jb-20121011-signed.zip and put them in root of my nexus 7
2. went to goomanager and clicked "flash ROMs", where i selected my grouper-2.52-27OCT2012-190304.zip, clicked "Order and flash selected" and on next screen checkmarked "Wipe cache/dalvik cache partition"
3. clicked flash, and waited..
4. did same procedure (step 2 and 3) with the gapps-jb-20121011-signed.zip and now im not sure if that all i needed to do, or if there's something i don't have to do next time there a minor update.. or can i skip wipe cache?, or skip flashing gapps (unless there's a newer version of gapps)?
thanks for any answers
-Deco

My steps:
Flash new PA rom
Flash Gapps
Wipe cache
Wipe dalvik
Reboot.
Never had a problem

Jordanooo said:
My steps:
Flash new PA rom
Flash Gapps
Wipe cache
Wipe dalvik
Reboot.
Never had a problem
Click to expand...
Click to collapse
but i still wonder if it's needed to wipe cache/dalvik because it seems to remove some login info fx. in gmail, wallpaper and such, and if it's not needed, then i might as well not do that
-Deco

If you dont wipe them, it can cause troubles.
Also, it shouldnt affect anything, doesnt for me
Edit: Gapps must be flashed everytime for PA. Forgot to mention that

Jordanooo said:
If you dont wipe them, it can cause troubles.
Also, it shouldnt affect anything, doesnt for me
Edit: Gapps must be flashed everytime for PA. Forgot to mention that
Click to expand...
Click to collapse
Found this thread by searching.
I have a question. When you upgrade the ROM, and do all the steps listed above, does this also save the installed apps on the device?

zakafx said:
Found this thread by searching.
I have a question. When you upgrade the ROM, and do all the steps listed above, does this also save the installed apps on the device?
Click to expand...
Click to collapse
Yes. Flashing the rom, then gapps, wiping cache and dalvik doesnt wipe any apps or apps data

[Q] Slimbean 4.2.2 build 3 to build 5 possible?

I didn't want to bother the team by sending them through the "important question form" webpage.
Neither can I ask them on the development thread on XDA.
I am currently on the slimbean 4.2.2 build 3. Going to build4 the team recommend a full wipe, but then the update of build-5 did not specify such step. I wonder if that means from build-3 to build-5 an easy wipe (wipe cache and dalvik only and flash the latest build-5 rom) is sufficient to make a successful update.

strangetml said:
I didn't want to bother the team by sending them through the "important question form" webpage.
Neither can I ask them on the development thread on XDA.
I am currently on the slimbean 4.2.2 build 3. Going to build4 the team recommend a full wipe, but then the update of build-5 did not specify such step. I wonder if that means from build-3 to build-5 an easy wipe (wipe cache and dalvik only and flash the latest build-5 rom) is sufficient to make a successful update.
Click to expand...
Click to collapse
To be honest this is never advised. Too many artifacts from the prior rom can cause issues. IT is always best to do a full wipe before flashing another rom. Be it update or not.

zelendel said:
To be honest this is never advised. Too many artifacts from the prior rom can cause issues. IT is always best to do a full wipe before flashing another rom. Be it update or not.
Click to expand...
Click to collapse
Most of the time it doesn't matter. An update that specifies a wipe should have a wipe during the process. A build after a build that specifies a wipe should have a wipe during the install if a wipe hasn't yet been applied.
So yes, OP you should wipe from 3-5 as 5 is built off of 4 which requires a wipe.
Sent from my Nexus 4 using Tapatalk 2