Related
Sorry if this has already been asked before, but searching through multiple pages of results using multiple search terms I was unable to find the answer that I was looking for.
Is there a way to revert from automatic Apps2SD with Cyanogen without losing my applications.
Would:
adb pull /system/sd/app app
adb pull /system/sd/app-private app-private
Before a full reformat of my SD card to a single partition work?
I'm looking to keep all of my data and settings if possible. If not, I'll probably just end up staying with Apps2SD.
cityeyes said:
Sorry if this has already been asked before, but searching through multiple pages of results using multiple search terms I was unable to find the answer that I was looking for.
Is there a way to revert from automatic Apps2SD with Cyanogen without losing my applications.
Would:
adb pull /system/sd/app app
adb pull /system/sd/app-private app-private
Before a full reformat of my SD card to a single partition work?
I'm looking to keep all of my data and settings if possible. If not, I'll probably just end up staying with Apps2SD.
Click to expand...
Click to collapse
make sure you also pull /data/data since thats what holds all the data and settings
in app and app-private are the actual apks
an adb pull of the app, app-private, and data/data folders should be all you need after you finish reformatting your card
you can just use a program like appmanager pro to back them up and then use backup for root users to copy the app data, then transfer them to your computer, wipe your sdcard to a single partion than reflash your rom so it drops apps2sd then transfer apps back to fresh format sdcard, install apps then use backup for root users
Your pull commands will be successful in backing up your apps to your computer, however, you will have to reinstall them one by one using Linda File Manager, or similar program to have access to the package installer feature. I would say use something Backup for root users or Atrackdog which allows you to bulk reinstall. If you have a lot of apps, reverting back to using the phone's internal memory is obviously gonna force you to pick and choose which apps you want to keep.
Ahh. Thanks for the clarification. I might just stick with Apps2SD instead of going through all of that. I thought that maybe there was a way to push the applications to the internal memory of the card in order to completely skip the whole "reinstallation phase". If I do end up doing it, I might go with the batch reinstall process.
I'm not having many problems with apps2sd, I just figured the small benefits that I'm getting don't outweigh the fact that my SD card is getting taxed in the process.
Thanks for all of the helpful responses!
sd cards are cheap, by the time you burn that card out, bigger and better ones will be cheap too
I'm shocked with all the helpfull info grid is putting out.
gridlock32404 said:
sd cards are cheap, by the time you burn that card out, bigger and better ones will be cheap too
Click to expand...
Click to collapse
Yeah that's true. I just had no scale as to how fast the cards burn out. Some people are saying they last years, some say they last only a few months.
I guess with the majority they last at least a year, which is absolutely fine by me. Thanks for all of the help!
i have had the same sdcard for over 2 years with no signs of damage or corupting
and once again preme, screw you
Woops! I thought I had deleted some incriminating pictures from the gallery and with astro file manager BUT while looking through the SD card , I found old deleted pics!
How can I really delete pictures without them showing up in some cache directory?
I heard that in-order to do so you needed to email them to someone totally random. I can give you a totally random email address for this purpose if you like ;-)
I think there are Cache clearing apps on the market, last i remember anyways.
LOL...
Thats no good. It should delete without any apps...damn.
all it does is super compress them so they can be overwritten...
As you'll no doubt aware, most disks/SSDs, memory sticks, microSDs still contain most old "deleted" files, even if they aren't obvious, until where the data was has been overwritten by something else..
Couple of useful bits of code, TestDisk & PhotoRec can help recover lost stuff (or stuff someone thought they'd deleted (!!!!) )..
get them here..
http://www.cgsecurity.org/wiki/TestDisk
NB Both these bits of software can completely screw machines/PCs/Laptops. whatever so BE CAREFULL!!!!!
I'm just about to try PhotoRec on the N1 and see what she finds... & will report...
My mate dodgy Rob found fascinating deleted SMS messages on his wife's (non-Android) 'phone.... the story of what he did about it is even funnier...
Cheers!
Lodger
Yup, Photorec can recover deleted stuff - .jpegs, .mov, .mpegs.. at least it did from my N1... - you have been warned ...
Running Ubuntu (Linux) & looking at the microSD card it reports 907 items on the microSD
Photorec recovered 3,724 items (!).. on the microSD and kindly copied them all to my Laptop..
If you really really need to feel confident something has gone then (I'm not an expert mind...) i understand you need to either..
a) (quick 'n dirty method ..) Fill up the apparently " empty" bit of the SD with garbage - eg some other .jpegs... or
b) To be really certain, re-format her: Several times... probably with several different file systems (FAT32, NTFS, EXT3...) , and don't chose the "quick" options...
Cheers!
Lodger
mine disappear after a soft reset
Damn.....not good. How am I suppose to receive rated r pics from girls and not have my gf find out!
iag48 said:
Damn.....not good. How am I suppose to receive rated r pics from girls and not have my gf find out!
Click to expand...
Click to collapse
youre a horrible man
cymru said:
I heard that in-order to do so you needed to email them to someone totally random. I can give you a totally random email address for this purpose if you like ;-)
I think there are Cache clearing apps on the market, last i remember anyways.
Click to expand...
Click to collapse
I developed CacheMate for clearing cache. It would not work for this purpose. There are a few places where the images would be stored. When in the DCIM directory in /sdcard using Astro, make sure you are viewing hidden file and directories. You can do this by check the "Show Hidden Files" checkbox in Menu > Preferences > Look and Feel. You need to delete the pics from the .thumbnails directory too. If you really want, you can always cue them up in the gallery and delete them that way (long pressing on the pictures brings up the multiple select checkbox). Hope this helps a little.
Thanks for the help.
Re: get pics back from sd card
Actually, the easy way to recover deleted photos from sd card or hard disk is to use a photo software. You can google it and you will get many photo recovery softwares. But they are mostly not free. I have come across the same thing like you. Finally, I get my pics back with Yesterdata.
Kind Tips:
Don't save the recovered data on your memory card again. Find another place for it like on your computer or other external disk, for safety's sake.
iag48 said:
Woops! I thought I had deleted some incriminating pictures from the gallery and with astro file manager BUT while looking through the SD card , I found old deleted pics!
How can I really delete pictures without them showing up in some cache directory?
Click to expand...
Click to collapse
This should not happen as deleted pictures remains on the phone. But there are nexus photo recovery tool that helps to undelete photos on nexus phones. See this article: recover deleted photos on nexus phone
hope this helps.
This morning i got a notification that my phone storage space is getting low. I have 12.8 MB free according to the system stats. It seems, though, that my phone thinks I have 0 MB free, as I tried to download something and it said I had no room (the file was a few dozen KB).
I then received a notice that a text had been rejected because my text message memory was full. I went in and did some house cleaning: deleted about 15 threads, some with 150-200 msgs in it. I then tried sending myself a test text, and it still said that my text message memory was full.
Anyone have any idea what's going on, and how to fix it? I'm having terrible flashbacks to my BB Curve when it didn't have a SD card in it.
xSiraris said:
This morning i got a notification that my phone storage space is getting low. I have 12.8 MB free according to the system stats. It seems, though, that my phone thinks I have 0 MB free, as I tried to download something and it said I had no room (the file was a few dozen KB).
I then received a notice that a text had been rejected because my text message memory was full. I went in and did some house cleaning: deleted about 15 threads, some with 150-200 msgs in it. I then tried sending myself a test text, and it still said that my text message memory was full.
Anyone have any idea what's going on, and how to fix it? I'm having terrible flashbacks to my BB Curve when it didn't have a SD card in it.
Click to expand...
Click to collapse
This is Android's "dirty little secret". All of your apps are stored on your phone's internal storage. If you're on a N1 then you're running 2.2, right?
Go to settings>applications>manage applications> all, click on each app and see if you can move to SD. While you're in there, clear the less important app's cache. Google Earth is a HOG.
You can also root and flash CyanogenMod. Then You'll be able to put all apps on your SD.
glwinkler said:
This is Android's "dirty little secret". All of your apps are stored on your phone's internal storage. If you're on a N1 then you're running 2.2, right?
Go to settings>applications>manage applications> all, click on each app and see if you can move to SD. While you're in there, clear the less important app's cache. Google Earth is a HOG.
You can also root and flash CyanogenMod. Then You'll be able to put all apps on your SD.
Click to expand...
Click to collapse
I am on 2.2, but most of the apps I have can't be moved to SD because the developer hasn't enabled it.
How much internal storage does the N1 have? I don't have that many large apps on here. Maybe I should uninstall Google Earth, which is a huge hog, you're right.
Empty your browser cache; this is usually enough.
If you're willing to root, there are a few ways to fix this using your SD card.
If it's affecting SMS as well your cache is full.
Not ideal for this to full up before /data - you may need an app like CacheMate to manage it for you.
I had this happen once and it was my SD card that was actually full, not anything on the phone.
i once tried putting apps on sd, their widgets became useless for some reason
sheek360 said:
i once tried putting apps on sd, their widgets became useless for some reason
Click to expand...
Click to collapse
Don't put widgets on sd then. That is what Google specifically says not to do. Simple enough. Don't put anything on sd that has to continuously run, services, live wallpapers, widgets.
having the same problem, all my caches are empty though. it said it had to reject a text due to lack of memory. now that i have freed up some (at 32mb free atm) it still doesn't receive the text.
this is a major downside on android's part.
glwinkler said:
This is Android's "dirty little secret". All of your apps are stored on your phone's internal storage. If you're on a N1 then you're running 2.2, right?
Go to settings>applications>manage applications> all, click on each app and see if you can move to SD. While you're in there, clear the less important app's cache. Google Earth is a HOG.
You can also root and flash CyanogenMod. Then You'll be able to put all apps on your SD.
Click to expand...
Click to collapse
I have all my apps on sd card that can be loaded there. I am having the same problem with low memory and messages not allowed. I had to uninstall a couple of apps that load only on internal memory and I hate that. Is there any way to check internal memory and clear that up? I have cleared as much cache as possible through manage applications in settings. Is there any other way to free up internal memory? Using CM6.0.3 rooted
umplarry said:
I have all my apps on sd card that can be loaded there. I am having the same problem with low memory and messages not allowed. I had to uninstall a couple of apps that load only on internal memory and I hate that. Is there any way to check internal memory and clear that up? I have cleared as much cache as possible through manage applications in settings. Is there any other way to free up internal memory? Using CM6.0.3 rooted
Click to expand...
Click to collapse
I have something over 100 apps on my phone, not Gapps, just downloaded stuff. If I'm reading it right titanium backup backs up over 200. I have a 16 GB sd card and I'm using CM6 which allows me to put whatever apps on my SD I want. Other ROMs let you do this as well, or you can root and move all your apps to SD. I just personally like CM6. Be careful though, I've noticed that some apps that get moved don't work or strangely disappear. especially if they have a widget. There is a link to the one click app in my signature below. It's called universal androot.
Good luck.
I am rooted as well and using CM6, most of my apps are loaded on my16 gig card, however some of them won't let me load to my card (slingbox, etc). I was just wondering if there is a way to access my internal memory to see if there were some things I could delete that I didn't need anymore. Any help would be appreciated
xSiraris said:
This morning i got a notification that my phone storage space is getting low. I have 12.8 MB free according to the system stats. It seems, though, that my phone thinks I have 0 MB free, as I tried to download something and it said I had no room (the file was a few dozen KB).
I then received a notice that a text had been rejected because my text message memory was full. I went in and did some house cleaning: deleted about 15 threads, some with 150-200 msgs in it. I then tried sending myself a test text, and it still said that my text message memory was full.
Anyone have any idea what's going on, and how to fix it? I'm having terrible flashbacks to my BB Curve when it didn't have a SD card in it.
Click to expand...
Click to collapse
My advise: Just root using Androidroot (1click-root) and after that search in Xda for setinstalllocation, download and install it and move all your apps to the sd-card (don't move widgets, autostart apps, root apps? or services). Did that last week and get back almost 40 mb in internal storage.
While you are doing it suggest you install from the market cachmate for root - it will be your day-a-day friend.
Best of all if i'm correct, you will Keep your warranty ok since you don't unlock your bootloader
SOUSAFRUI @ NEXUS ONE
sousafrui said:
My advise: Just root using Androidroot (1click-root) and after that search in Xda for setinstalllocation, download and install it and move all your apps to the sd-card (don't move widgets, autostart apps, root apps? or services). Did that last week and get back almost 40 mb in internal storage.
While you are doing it suggest you install from the market cachmate for root - it will be your day-a-day friend.
Best of all if i'm correct, you will Keep your warranty ok since you don't unlock your bootloader
SOUSAFRUI @ NEXUS ONE
Click to expand...
Click to collapse
Co-sign...this is exactly what I have done. ~90+ apps on my N1 with no slowdown or memory msgs
Sent from my Nexus One
gibosn6594 said:
If you're willing to root, there are a few ways to fix this using your SD card.
Click to expand...
Click to collapse
How? I have been searching for solution after installing cutom Rom and now I have 3.6mb memory on my sensation after clearing all cache, data in apps. Please helpif you can as I cannot find specific answer and I cannot post to development pages I got the Rom.
Noob here. Noob on XDA anyway. I've owned by Nexus One for over two years now and I've been pretty happy with it. However, I am finally running out of internal memory, even after moving all the apps I could to flash.
Actually, it's mostly TMobile's crappy voicemail app's fault that I am here. If there is less than 10% of space on the device, it flips out and won't download voicemails any longer, which is horrible.
So, here I am today, I just rooted my phone and using posts like this one, I am figuring out how I can force some of those greedy apps onto my sdcard to free up some space. I will probably go with a custom rom here too soon, since there will no longer be updates for the Nexus One.
I know there are much much better phones out now, but this thing works and has been very good.
ycayir said:
How? I have been searching for solution after installing cutom Rom and now I have 3.6mb memory on my sensation after clearing all cache, data in apps. Please helpif you can as I cannot find specific answer and I cannot post to development pages I got the Rom.
Click to expand...
Click to collapse
I'm not sure how this works on the sensation, but try this.
Since you already have a custom ROM, I'm assuming your phone has been rooted. In that case, install darktremor's a2sd script. You'll have to create and ext3 or ext4 partition on your sd card, and then the script will automatically move some apps to the ext partition freeing up space on your phones data partition.
jmomo said:
Noob here. Noob on XDA anyway. I've owned by Nexus One for over two years now and I've been pretty happy with it. However, I am finally running out of internal memory, even after moving all the apps I could to flash.
Actually, it's mostly TMobile's crappy voicemail app's fault that I am here. If there is less than 10% of space on the device, it flips out and won't download voicemails any longer, which is horrible.
So, here I am today, I just rooted my phone and using posts like this one, I am figuring out how I can force some of those greedy apps onto my sdcard to free up some space. I will probably go with a custom rom here too soon, since there will no longer be updates for the Nexus One.
I know there are much much better phones out now, but this thing works and has been very good.
Click to expand...
Click to collapse
The same goes for you.
I can't post the link for the script, but just search the forums or google for dta2sd and you'll find it.
To create an ext partition, I would recommend using 4ext recovery.
Hope this helps.
clear the applications data
xSiraris said:
This morning i got a notification that my phone storage space is getting low. I have 12.8 MB free according to the system stats. It seems, though, that my phone thinks I have 0 MB free, as I tried to download something and it said I had no room (the file was a few dozen KB).
I then received a notice that a text had been rejected because my text message memory was full. I went in and did some house cleaning: deleted about 15 threads, some with 150-200 msgs in it. I then tried sending myself a test text, and it still said that my text message memory was full.
Anyone have any idea what's going on, and how to fix it? I'm having terrible flashbacks to my BB Curve when it didn't have a SD card in it.
Click to expand...
Click to collapse
1st ... what rom are you using ?
2nd ... try this flash as zip in recovery http://www.2shared.com/file/OFasim5b/ad2sdx-10-RC01.html ......
I have about 1.01GB of Gameloft files on my internal SD and copying them back from a full format/reflash firmware takes close to 1hr, is there a way for this to be stored on my external SD and still work with lag fixes and such ?
wait for froyo
then it can be done
before froyo it's not possible
as you need to keep the game data in the Internal SD
AllGamer said:
wait for froyo
then it can be done
before froyo it's not possible
as you need to keep the game data in the Internal SD
Click to expand...
Click to collapse
Froyo official or the pre-release JPM would do ?
yeah leaked 2.2 will do, but not recommended
expect problems
AllGamer said:
yeah leaked 2.2 will do, but not recommended
expect problems
Click to expand...
Click to collapse
I only see move game data thats like 7-10MB large the entire game files still sit on the internalSD
Does anyone know some kind of a method to point the game files over to the external_SD? its really a pain restoring about 3,000 game files thats barely over 1.5GB takes hours!
Sorry for bumping this, but did anyone figure this out on froyo 2.2 or 2.2.1?
Never got this resolved, I would like to have all of my game data on the external_SD
exactly, im looking very hard for this questions to be resolved..but i tried searching elsewhere in other forums and there too did not provide any best answers...can anyone out there help us out pls
Not possible for mobile games
I also have tons of game data, especially gameloft's. I do really want to keep it in my external SD. So whenever I reinstall my system and the games, I can just simply put my extSD back in, then the game loads.
But as far as I know, this currently not possible even in froyo. App like Apps2SD can move apps to extSD, but not the game data, which are too big.
Even if it could, with the data that big I wonder how long should it take to load all the apps in the applications list when we run it to -- let's say uninstall other apps?
To prevent this, the dev separate the game from the data but I think the game is programmed to search the data path to internal SD by default, and could not be changed.
This is just like in PC, the default 'savegames' folder will be created separately and each game has it's own place. Some chose to be in the installation folder, others in my documents... So on...
And when we reinstall our PC OS then reinstall the games, we must restore our savedgames from our backups that we have copied in other disk, to the game default save folder.
Unfortunately, for mobile games the data are not just for the savedgames, but also for the main game resources... Which are too damn big and takes time to restore... Hmmm...
TerraBuzz said:
I also have tons of game data, especially gameloft's. I do really want to keep it in my external SD. So whenever I reinstall my system and the games, I can just simply put my extSD back in, then the game loads.
But as far as I know, this currently not possible even in froyo. App like Apps2SD can move apps to extSD, but not the game data, which are too big.
Even if it could, with the data that big I wonder how long should it take to load all the apps in the applications list when we run it to -- let's say uninstall other apps?
To prevent this, the dev separate the game from the data but I think the game is programmed to search the data path to internal SD by default, and could not be changed.
This is just like in PC, the default 'savegames' folder will be created separately and each game has it's own place. Some chose to be in the installation folder, others in my documents... So on...
And when we reinstall our PC OS then reinstall the games, we must restore our savedgames from our backups that we have copied in other disk, to the game default save folder.
Unfortunately, for mobile games the data are not just for the savedgames, but also for the main game resources... Which are too damn big and takes time to restore... Hmmm...
Click to expand...
Click to collapse
I have same problem
Did anyone find a solution? I would also love to more gamedata to the exxternal sd card, seems a bit silly we cant
take a look http://forum.xda-developers.com/showthread.php?t=1129134&highlight=gameloft here...i haven't tired it yet, but i think it should work
dudau16 said:
take a look http://forum.xda-developers.com/showthread.php?t=1129134&highlight=gameloft here...i haven't tired it yet, but i think it should work
Click to expand...
Click to collapse
I can confirm that solution here works
Hi there!
I use a G1 with Super E mod.
apps2ext with a 512 mb ext partion for that.
I have about 60 apps installed, all working well.
now i installed the new opera mini and the message "few storage" poped up..
I uninstalled it, but the message didn't disappear.
Then I look it up: only 5 mb left
I removed some other apps, but as suggested, this didn't free up much space (~,5 mb), because of apps2ext..
I cleared my cache using nandroid, but still the same..
What is using all my phone space?
can I clean that up somehow?
Thanks!
Cholera
As you wrote, you have apps to sd, so most likely the app are not stored on /data, but on /sd-ext/...
Cleaning /cache will not help you, because it's almost unused. The problem you might have is, that internal space on /data is filled up, so try to clear all the application caches, especially browser, market, ....
This should free up some amount of memory and you should be able to install Opera Mini.
i ran into this same problem a couple of days ago. it was a difference of method to get this error however. my phone crashed after trying to open an app and then corrupted alot of my apps so i had to uninstall and re-install. i then found it was telling me i had low space. i cleared all my caches and checked which apps were installed on my phone and which on SD. however the only comonality is the Opera Mobile app. i too installed it when i got this error too. can this be a coincidence or not?
market cache: 450kb
browser cache: 200kb
opera mini cahce: 0kb
gmail storage : 800 kb
news and weather: 28kb
downlolad manager: 250kb
deleted these, but still have 7,8 mb free space..
had a look at /data:
du ./data -h : 47mb used
I had a closer look at the stuff and found:
13.1M ./com.opera.browser/lib
even if i dont have opera mobile installed, i also found
925.5K ./com.opera.mini.android
which i currently use...
removed the com.opera.browser .. 20mb free...
additional apps that use much space here:
# du ./ -h |grep M
1.5M ./com.facebook.katana
1.7M ./com.rovio.angrybirds
1.0M ./com.android.providers.contacts/databases
3.0M ./com.adobe.reader
17.5M ./com.navigon.navigator
these are large, but ok..
and this one:
899.5K ./com.android.packageinstaller/files -> i delete the tmpCopy.apk
now i have a bit of a breath.. lets see what we can delete from the system
i created an sd-ext and lost about 250 mb of internal memory. what gives? also, i see no extra partitions anywhere and i dont know where my apps to sd are
v941726 said:
i created an sd-ext and lost about 250 mb of internal memory. what gives? also, i see no extra partitions anywhere and i dont know where my apps to sd are
Click to expand...
Click to collapse
im not sure about the loss of space, however you will not see an ext partition using windows as it does not recognise it. with some file explorers you can pick it up if im right. otherwise you have to use linux on the sd card to see the partition. it cannot be done via the usb mount
I thought it might be something like that. i'm a windows guy. mcse. but i know zip about unix/linux. lol. it doesn't make sense though to presumably make a partition on the card and then it takes from your internal space. so I don't see the point of partitioning your card. hence, app2sd seems useless. I cannot find an explanation anywhere of how it works. also, I have an incredible, what the hell is that 8gb of memory for. no explanation anywhere. it just sits there free. what is it for if it can't be utilized?
v941726 said:
I thought it might be something like that. i'm a windows guy. mcse. but i know zip about unix/linux. lol. it doesn't make sense though to presumably make a partition on the card and then it takes from your internal space. so I don't see the point of partitioning your card. hence, app2sd seems useless. I cannot find an explanation anywhere of how it works. also, I have an incredible, what the hell is that 8gb of memory for. no explanation anywhere. it just sits there free. what is it for if it can't be utilized?
Click to expand...
Click to collapse
I cant understand why its taken up space on your phone tfor a2sd apart from when it adds the data files for the apps. the a2sd partition stores the apps on the sd card in a partition that it cons the phone into thinking is an internal section.
Where is the 8gb you are referring to? is it on the phone or the card?
traumatism said:
I cant understand why its taken up space on your phone tfor a2sd apart from when it adds the data files for the apps. the a2sd partition stores the apps on the sd card in a partition that it cons the phone into thinking is an internal section.
Where is the 8gb you are referring to? is it on the phone or the card?
Click to expand...
Click to collapse
exactly! there is 8gb free. well, 7+, but I don't know linux. so it's just a waste. i ended up reformatting my card and got the space back on my internal memory. can anyone explain that? I gave it a shot cuz I know computers and it worked. i back up everything, but it's a 2 hour downtime. I would just like to know what the heck is the point? anyone know what that 8gb is wasted for on the Incredible?
what rom were you using or trying to use? all the info helps solve the issue
traumatism said:
what rom were you using or trying to use? all the info helps solve the issue
Click to expand...
Click to collapse
using ultimate droid now. no themes. pretty simple. have used several rom's. no one can explain what the 8gb is for. not even verizon. or HTC.
the incredible has 750mb of internal storage. I can see that's for apps and OS. but there are 8gb of other internal memory that is free. wtf? I've been kind of ignoring it thinking it might be for future use or something, til I partitioned my sd card and realized it took from that 750mb space.
as far as i know it shouldnt have taken anything from that space at all. it should have done what every computer does and only create a partition on the card. thats odd. do you get any names for the areas that are free? like you would with a folder name.
traumatism said:
as far as i know it shouldnt have taken anything from that space at all. it should have done what every computer does and only create a partition on the card. thats odd. do you get any names for the areas that are free? like you would with a folder name.
Click to expand...
Click to collapse
thats what i thought. like i said, i know windows through and through. there was no indication of a partition anywhere. kind of bugs me. always heard linux was easy. still would like to know about that 8gb too. don't get me wrong, i love the droid, but the way memory and or storage works makes no sense at all
there is an app called root explorer on the market. its a paid app but it lets you explorer all the folders and from what i can see the ext partition is known as sd-ext. sdcard is the obv one. system is the rom or os as it were and if installed correctly (only know this from the G1(Dream)) the data folder is where it stores all the information and settings for the apps and system settings
have you checked your text messages? because those also takes up space too, even tho text messages are really small in size, but if you have a LOT of them without deleting them, over time they usually build up