Database Develop

How to Handle ROM Manager OTA's with CM7.

I received a notification from ROM Manager that CM7 Nightly 19 was available.
It seems not a good idea to use this. I believe you need to format the cache partition first? And doing this thru ROM manager seems that it would not allow for that?
Anyone use ROM Manager OTA's successfully with CM7?

it does allow you the option of wiping the "data and cache" before installing, but i'm leary of wiping the "data" part. is that all our app data?

Yeah, with the Nightlies, I believe you can flash them on top of the older version without wiping data. So I definitely do not want to do this every night!

Eddog4DROID said:
Yeah, with the Nightlies, I believe you can flash them on top of the older version without wiping data. So I definitely do not want to do this every night!
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I flash my nightlies with out wiping.

Yes, I don't wipe the data, but I do wipe Cache Partition. Isn't that necessary? Or do you flash from Rom Manager as is without wiping data, cache, anything?

i wouldn't use rom manager to flash. use it to download and boot into recovery only.
also good for flashing latest recovery when needed.

Full wipe rom?

Noob questions. Every time I flash a new rom I become narotic, and I first disable any lagfix, then go to cwm, and factory reset, cache, dalvik, and batt stats all wiped. I'm assuming I don't need to do this if it's a full wipe rom? Can I even skip the lagfix part or is that always necessary?
Also if I'm upgrading a version of a rom, ex, apex 6.4 to 6.5 or any other situation same as this, can I just flash it without doing any prep before hand?
Sent from my GT-I9000 using XDA App

if it's a full wipe ROM than yes, the ROM does all the wiping for you. And if the OP states for you to disable lagfix before flashing than i do so.. also if your just doing an update you can usually just flash over one another. But its always good to check with the ROM dev and see if he suggests any special wipes or whatnot.

Cdub3 said:
Noob questions. Every time I flash a new rom I become narotic, and I first disable any lagfix, then go to cwm, and factory reset, cache, dalvik, and batt stats all wiped. I'm assuming I don't need to do this if it's a full wipe rom? Can I even skip the lagfix part or is that always necessary?
Also if I'm upgrading a version of a rom, ex, apex 6.4 to 6.5 or any other situation same as this, can I just flash it without doing any prep before hand?
Sent from my GT-I9000 using XDA App
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You can still do whatever your used to and are comfortable with. BUT this is what I do before flashing any rom.
I go to market and make sure all apps are updated.
Next I go to titanium backup and backup all user apps and system apps with data (I NEVER RESTORE THE SYSTEM APPS OR DATA THOUGH)
Next I boot into recovery and perform a backup (which saves almost Evey aspect of my rom I am on before flashing
I boot back up and then reboot into recovery again.
Then I install whatever rom I am flashing at the time.
I DO NOT WIPE ANYTHING OTHER THAN CACHE WHILE IN RECOVERY AND BEFORE FLASHING THE ROM.
I have NOT had more than 1-2 issues flashing anything since I started using froyo, so that includes any froyo rom, the gingerbread rom that first was made, then Continuum and on my second cappy the same except I also have flashed CM7 on it.
The one or two times I had issues ALL I ever did was boot into recovery and run restore from the previous rom I was on. Then reflash the rom I was trying to get on to. I really have have had NO ISSUES NOT wiping anything other than cache.
I look at it this way, if it works the first time I flash a rom I am golden and do not need to reset up everything. If I have a issue then I CAN start from scratch with a factory reset and wipe cache and dalvich cache IF NEED BE. At least then I am ON the rom I was trying g to go on in the first place.
Then after all seems good I will restore my user apps and some user apps with data with Titanium Backup. So MOST of the time I have changed roms and all is working with no issues in 10 to 15 minutes.
Again this is HOW AND WHY I do it that way. A NANDROID BACKUP and TITANIUM BACKUP are your BEST FRIENDS in these cases.
Sent from My KickAss Captivated CM7 OC'd 1.55Ghz/Undervolted

Thanks for the replies. Very helpful
Sent from my GT-I9000 using XDA App

Cdub3 said:
Thanks for the replies. Very helpful
Sent from my GT-I9000 using XDA App
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6.5 is a wipe version which would take care of wiping caches. You dont need to disable lagfix. But as someone said always keep a nandroid backup
Also you may want to post these queries in ROM thread for quicker response

I always disable lagfixes just for good measure. Most roms do a full wipe so there's no need for any of the other stuff.

[Q] About moving from one rom to another and fresh start

Whenever I flash to another rom and wipe everything, do all the files from the previous rom get completely removed? I mean, if I move to a new rom, is it like formatting my computer and installing Windows (or whatever OS) again?
I'm not talking about my files in the SD card, I want to know if flashing a new rom and wiping means a clean, fresh start

AFAIK, it will not get you a fresh OS like you format your PC before installing new OS. I recommend you to full wipe your phone, make a back up before ! your sd card's data will not be deleted, but your apps, contacs, settings, messages, etc will be removed.

I usually do a full wipe, install the rom and then full wipe again

Just backup with xrecovery before installing new rom, then install rom and wipe bat,cache and dalvik, you should retain your data but if not you can full wipe then or restore.
From Froyobread to GingerDX kept my data, Same Dev.

But, guys, I don't want to retain my data. I want to know if flashing a new rom means a fresh start.

Dexter_prog said:
But, guys, I don't want to retain my data. I want to know if flashing a new rom means a fresh start.
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Full wipe and fresh start.

Yes it formats everything such as files from the os and your data! Before you move to any rom always make a backup, just incase something goes bad, such as it not booting for some reason or other bugs.

[Q] Why clear Dalvik and cache?

So every single rom for any phone I've seen says to clear the dalvik and the cache (or maybe its just the "dalvik cache") but when I went from stock to Thriller, I forgot to, and nothing went wrong. In fact, all my settings and apps were all intact from the previous stock rom.
I've considered that the only other phone I'd done any flashing on was a backflip, without Apps2SD and maybe that's why all my apps and settings were intact, so that still leaves me with the question: why clear it?
This may be a noob-ish question, and I apologize. Thanks for any help!

Tyqar said:
So every single rom for any phone I've seen says to clear the dalvik and the cache (or maybe its just the "dalvik cache") but when I went from stock to Thriller, I forgot to, and nothing went wrong. In fact, all my settings and apps were all intact from the previous stock rom.
I've considered that the only other phone I'd done any flashing on was a backflip, without Apps2SD and maybe that's why all my apps and settings were intact, so that still leaves me with the question: why clear it?
This may be a noob-ish question, and I apologize. Thanks for any help!
Click to expand...
Click to collapse
If there are any compatibility issues between the apk dalvik cache of your previous rom and the apks on the new rom wiping dalvik clears the previous apks stored dalvik cache. In most cases you can flash without a problem. But I recommend wiping between rom flashes just to eliminate any potential problems. Flashing something like Thriller over the stock rom you can probably get away with not wiping anything since all the apks are essentially the same. Flashing kernels you don't need to wipe anything. When flashing a rom with a completely different firmware I recommend a full data wipe. Restoring recovery backups such as nandroid require no wiping at all.
Also, wiping dalvik shouldn't affect any of your settings.
Sent from my LG-P920 using Tapatalk

+1
When switching ROM with different base apps, it is generally better to wipe caches than to get stuck in a boot loop, or having your apps and launcher FC on you. You never lose anything as the cache rebuilds itself on the next reboot, except maybe a few minutes
CallMeAria said:
If there are any compatibility issues between the apk dalvik cache of your previous rom and the apks on the new rom wiping dalvik clears the previous apks stored dalvik cache. In most cases you can flash without a problem. But I recommend wiping between rom flashes just to eliminate any potential problems. Flashing something like Thriller over the stock rom you can probably get away with not wiping anything since all the apks are essentially the same. Flashing kernels you don't need to wipe anything. When flashing a rom with a completely different firmware I recommend a full data wipe. Restoring recovery backups such as nandroid require no wiping at all.
Also, wiping dalvik shouldn't affect any of your settings.
Sent from my LG-P920 using Tapatalk
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so, when i flashed thriller and followed the instructions, did I do a full wipe or not?
I mean if it doest it on its own, and if not, should I do one?

latinohot said:
so, when i flashed thriller and followed the instructions, did I do a full wipe or not?
I mean if it doest it on its own, and if not, should I do one?
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If you followed the instructions you did a full data wipe. When you do this the dalvik gets wiped as well. To just wipe dalvik look under the Advanced menu in cwm recovery.
Sent from my LG-P920 using Tapatalk

clearing cache
i am using a nand rom in my HD2, and i also want to install another rom via SD in Magldr, but because of kernel issues i cannot load the Rom from SD unless i use the kernal i am advised to use. I am instructed to clear the dalvik and cache, but does this mean that i would lose anything from my current NAND rom? I still want to be able to use that of coarse so i just want to make sure there are no major risks when clearing cache.

ssj5legend said:
i am using a nand rom in my HD2, and i also want to install another rom via SD in Magldr, but because of kernel issues i cannot load the Rom from SD unless i use the kernal i am advised to use. I am instructed to clear the dalvik and cache, but does this mean that i would lose anything from my current NAND rom? I still want to be able to use that of coarse so i just want to make sure there are no major risks when clearing cache.
Click to expand...
Click to collapse
Clearing dalvik and cache wont make you lose anything, used to do it with my shift because I'd flash about 10 zips a day sometimes...
Also when it comes to flashing any ROM I format system data cache wipe dalvik cache and do a factory reset just to be sure nothing from a previous ROM is left over also wipe my SD ext partition when running an a2sd ROM, my question is can I safely manually format the emmc partition of the thrill from the mounts and storage option of cwm
Sent from my LG-P925 using Tapatalk

[Q] Tablet is acting strange

Hi,
I've been using galaxy tab 8.9 with custom ROMs for more than a year and a half now, and sometimes it was acting strange, like flickering dialogs and crashes. Usually this meant an unstable ROM or just cache wasn't cleared when a new ROM was installed. And it was stable for some time, till I did a reset. Now no ROM is stable any more in addition to this, the battery sometimes says it is empty, but after restart it is back to normal status. I tried number of ROMs without luck, all are flickering lately which must mean it is not ROMs fault.
I am running out of ideas what to do with this tablet, so I'm asking if you guys have any suggestions, what else can I do to fix it.
NOTE: when installing a new ROM, I always did it with CWM recovery from internal storage with data, cache, dalvik wipe and factory reset.
regards, Daniel

danizmax said:
Hi,
I've been using galaxy tab 8.9 with custom ROMs for more than a year and a half now, and sometimes it was acting strange, like flickering dialogs and crashes. Usually this meant an unstable ROM or just cache wasn't cleared when a new ROM was installed. And it was stable for some time, till I did a reset. Now no ROM is stable any more in addition to this, the battery sometimes says it is empty, but after restart it is back to normal status. I tried number of ROMs without luck, all are flickering lately which must mean it is not ROMs fault.
I am running out of ideas what to do with this tablet, so I'm asking if you guys have any suggestions, what else can I do to fix it.
NOTE: when installing a new ROM, I always did it with CWM recovery from internal storage with data, cache, dalvik wipe and factory reset.
regards, Daniel
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Do you ever wipe the system partition?

upconvert said:
Do you ever wipe the system partition?
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Agree. In TWRP, a factory reset only wipe data, cache and dalvik cache. You have to manually format system. A clean install requires to wipe system, data, cache and dalvik-cache.
---------- Post added at 08:18 AM ---------- Previous post was at 08:17 AM ----------
danizmax said:
Hi,
I've been using galaxy tab 8.9 with custom ROMs for more than a year and a half now, and sometimes it was acting strange, like flickering dialogs and crashes. Usually this meant an unstable ROM or just cache wasn't cleared when a new ROM was installed. And it was stable for some time, till I did a reset. Now no ROM is stable any more in addition to this, the battery sometimes says it is empty, but after restart it is back to normal status. I tried number of ROMs without luck, all are flickering lately which must mean it is not ROMs fault.
I am running out of ideas what to do with this tablet, so I'm asking if you guys have any suggestions, what else can I do to fix it.
NOTE: when installing a new ROM, I always did it with CWM recovery from internal storage with data, cache, dalvik wipe and factory reset.
regards, Daniel
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Click to collapse
Try flashing the original firmware via odin.

iZLeeP said:
Try flashing the original firmware via odin.
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Click to collapse
Flashing original firmware would be my last resort. Is there any difference between odin and CWM flashing?

danizmax said:
Flashing original firmware would be my last resort. Is there any difference between odin and CWM flashing?
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Click to collapse
Of course. Flashing original firmware via odin brings back the original setup that came with the tab out of the box. I just don't remember if it will delete the contents of internal sd card. In any case, you can flash original firmware thru CWM as I always do, though I only flash boot and system images I modified in Kitchen. It will still be stock but only that it has been debloated, rooted, busybox installed, init.d enabled, and some system apps replaced.
Just remember that when flashing ROMs via CWM do a factory reset (wipe data, cache, dalvik-cache). In addition to the wipe, the rom.zip itself formats the system partition prior to flashing.