[Q] Why should we use a2sd scripts? - Optimus One, P500, V General

First of all i am not a dev, and the statements bellow are confirmed by devs and known guys from our O1 community like Maktail and Miasmic (thanks guys).
Most of us use a2sd scripts like darktremmor, ungaze, link2sd etc. and many of those are suppose to provide us with practically unlimited sd space for apps and data. But the common problem which allways occures is that after moving one too much apps to sd you will get at some point bootloops. The phone will not be able to load all apps from sdext partition and reboots all the time. So no a2sd script is able to provide what is ment for.
My question of why use a2sd script is related to the fact that moving apps to sd using built in android script which resides in every ROM (even stock obviously), moves to sd the same amount of apps as other scripts mentioned and has the same behaviour of bootlooping when too many apps are moved to sd. The only difference is that other scripts provide more options, like moving dalvikcache to sd. But that doesn`t help either.
So why use a2sd scripts when the result is the same as using stock android script?
A2sd dev dk_zero-cool (thanks) said here http://forum.xda-developers.com/showthread.php?t=1342387&page=25 that is common knoledge that android cannot handle more than 1GB external data and recommended to use no more than 1,5 GB sdext partition formated with other recovery than CWM which is buggy. Did that and results are the same bootloops. Which means that moving too many apps to sd gives at some point system instability no matter what app or which script we use.
That is why more exepensive phones have more internal mem, up to 16GB in nexus case for example, which is using internal mem even for data games storrage. In that case they use a script to link internal sd data to external sd data (folder mounting), which is of no use for us.
Using DT, ungaze and android built in move to sd option, i could move to sd the same amount of apps before getting bootloops. So why buther using all king of scripts when the resilt is the same?
And now i get to the real questions, which are:
Is there any a2sd script that gives the use of more than 1.5 GB of external data without system instability (bootloops)? (i could move about 1.2 GB to sdext using ungaze) Please post the answer to this after you tested and moved or linked to sd more than 1.5 GB of apps.
Is there a 1 or 1.5 GB limit of external data which android (Linux) can handle before getting instable? If so, can this limit be overcome?
If there is a limit, why the options to create more than 2 GB sdext partitions in recoveries?
Can some nice dev make a script that lets the phone give us a slap on the face when getting close to the point where the system gets instable, if the limit of external space cannot be overcome? It seems that most of a2sd script devs discontinued their work.

my opinion
I have used both ungaze and link2sd... link2sd got unstable when i am using almost over a gig of Ext partition while right now I'm using ungaze with 1.7gb of used Ext partition... It was stable for me... No bootloop or anything...
Using the latest cm7 nightly rom, fk v4...

EveryThing has it's own LIMITATION

amao10 said:
I have used both ungaze and link2sd... link2sd got unstable when i am using almost over a gig of Ext partition while right now I'm using ungaze with 1.7gb of used Ext partition... It was stable for me... No bootloop or anything...
Using the latest cm7 nightly rom, fk v4...
Click to expand...
Click to collapse
Really? 1.7 Gb and stable? Ext 4? Did you use CWM to make it? What card do you use?

New great a2sd mounting folders like disks! Need some testers here guys, please help. Maybe this way we can solve a2sd bootloops.
Must see this:
http://forum.xda-developers.com/showthread.php?t=1502893&page=6

based on my experience
Ext 2, used amonra 3.0.6, class 4 16gb transend, faster boot up than link2sd...

amao10 said:
Ext 2, used amonra 3.0.6, class 4 16gb transend, faster boot up than link2sd...
Click to expand...
Click to collapse
So nothing special. Close to what is use. Except for ext2. I use ext4. Could ext2 be more stable?

does anyone has proof that internal sd card is better & faster than eksternal sd card class 10?

Is there really need for a proof on that matter? The fact that class 10 is the latest technology doesn`t make it ultimate.

voyager20021 said:
Is there really need for a proof on that matter? The fact that class 10 is the latest technology doesn`t make it ultimate.
Click to expand...
Click to collapse
yes but it makes sense if your internal sd card is only class 2 (imagine factory want to cut budget product and add low sd card read & write).
one thing for sure, my quadrant says about 800 using internal sd card, and now about 2000 using eksternal. and if someone say that quadrant score is irrelevant, i only ask, why?

I use link2sd with 512 or 600-700 MB EXT3, and never got a problem, I prefer huge apps/games like NFS shift, in internal memory and data obviously in normal SD partition, and I prefer keeping apps like facebook, camera360 and other [unmoveable by default] apps in EXT3.. this way I can install several apps without any problem

I dont know if this has been asked before and I am feeling lazy to search. Does ungaze data2sd work with ext4 now?

Related

How does app2sd works ?

Hi,
i just rooted my phone yesterday and i am quite new. I am using the kimera 1.8 and it says app2sd is automatic (i guess) I have partition my class 6 4gb sd card but then when i install apps, the memory of the phone is the one that decreases... Any idea how should i do this ?
raikan123 said:
Hi,
i just rooted my phone yesterday and i am quite new. I am using the kimera 1.8 and it says app2sd is automatic (i guess) I have partition my class 6 4gb sd card but then when i install apps, the memory of the phone is the one that decreases... Any idea how should i do this ?
Click to expand...
Click to collapse
There is a section on how to check if apps2sd is working correctly in BTDAG's guide linked in my signature. Bookmark it!
i already check it but however, my internal memory still decreases when apps are installed.. Does this mean that the app2sd does not work ?
raikan123 said:
i already check it but however, my internal memory still decreases when apps are installed.. Does this mean that the app2sd does not work ?
Click to expand...
Click to collapse
no it doesn't. what does the apps2sd check say? i made it. it tells you the truth. if it tells it works, then it works.
it says /dara/app is a symlink..........ok
/darta.app-private is a symlink.........ok
apps2sd is working without dalvik-cache
What does it mean ??
it says its working but internal phone memory drops ??
dalvik-cache resides in the internal memory, and therefore takes up space on your phone.
if i ever get the guy that made people think apps2sd doesn't use any internal memory, i'll do really bad things to him...
so how do i move my dalvik-cache to my sd ?
you can edit the apps2sd script, or you can ask your rom dev to do it for you. or you can just live with the fact that dalvik-cache uses a little internal memory, it is not gonna eat up all of it. how much free space do you have left?
100mb left just for 20 apps installed
I followed your instructions and the script tells me apps2sd is not working.Can it be manually enabled? Im running Kimera 1.8 with a ext4 partition (I pm'd exit and he told me ext4 was supported)
Thanks

App 2 sd

Ok so I'm kind worried about my phone's internal memory . Is there any way to force all app's to SD card . Some apps can't be transfered to sd through conventional apps or settings>Apps .
Thx and I'm very sorry for a 2nd thread openend in such a small ammount of time
Cheers.
Zerobarat1 said:
Ok so I'm kind worried about my phone's internal memory . Is there any way to force all app's to SD card . Some apps can't be transfered to sd through conventional apps or settings>Apps .
Thx and I'm very sorry for a 2nd thread openend in such a small ammount of time
Cheers.
Click to expand...
Click to collapse
A2SD is solution. Search on forum first...for next time...
[Script][A2SD] Darktremor Apps2SD 2.7.5.3 Beta 04 (01/29/2011)
[Q] Apps2SD on a custom ROM
Hmmm interesting, but seems way too much of a hassle . Primarily I just wanted to move Yahoo messenger which occupies quite a lot of space and maybe Chess elite which again is rooted ( literally speaking ) into the internal memory . This makes me sucha a sad panda
For that I just use move2sd enabler or apps2sd froyo. They're in the market
kpbotbot said:
For that I just use move2sd enabler or apps2sd froyo. They're in the market
Click to expand...
Click to collapse
It will not force move apps like Yahoo mess , or chess elite unfortunately . Seems like I'm stuck with a pretty limited phone memory
If you like having everything on the SD card, you can use ROMs that come with dalvik2sd and darktremor apps2sd That is, if you like that. I personally don't prefer those though. As long as I have more than 50MB of free internal space, there's nothing to worry about.
I have lots of apps installed on my optimus one.
Some on SD and some on phone.
If I go for this mod, do I have to install all the apps on the SD card again as those would be deleted?
No idea. I tried flashing Light ROM(i added darktremor for my personal use and testing) without wiping anything, and darktremor apps2sd doesn't seem to work. To me, this looks like wiping everything then flashing. In short, complete reinstallation.
I'm not sure though. Maybe I just haven't given it enough time.
Try move2sd enabler.
Try links2sd from Gt540 forums. As far as I know it need some work with some kernels. For sure works with Mik_os kernel (1.0) Backup all content of SD card before ext partitioning.
i have installed app2sd in market free but there are some app only install in phone memory, how to move them into sdcard
you can try via adb:
adb shell pm setInstallLocation 2
@vantruongsinh
anotherloony said:
Try links2sd from Gt540 forums. As far as I know it need some work with some kernels. For sure works with Mik_os kernel (1.0) Backup all content of SD card before ext partitioning.
Click to expand...
Click to collapse
You can try that too. It won't be picky since it will create symbolic links from /data/app to your SDcard's ext partition. I yet have to try this, but this method seems to be easy, plus there's a GUI (app) for it.
I'm not sure if this works with the stock kernel, but flashing something else should be easy
apps2sd with stock rom
Anyone here tried installing darktremor's apps2sd?
I can't seem to get it to work. It just loops in the bootup animation.

[Q] darktremor a2sd on Cyanogenmod

Hi guys,
This question is bouncing on my mind for some time...
Many people state that they use darktremor a2sd on Cyanogenmod, and I'm wondering why?
Darktremor's objective is to move apps to SD, right?
Well, Cyanogenmod also allows us to do the same, right again?
Sooooo, why use darktremor on Cyanogenmod?
Thanks in advance
I'm also wondering about the difference if I was to use darktremor's script. I noticed the default Apps2SD would not completely transfer the app to the sd card (for example, if I transferred a 20mb game, it's reported that around 1mb is still left in the internal memory), hence the amount of apps I could install on my ace is very limited. Would using darktremor's script solve this?
Apps2SD (the one in Froyo and CM) moves most or some (depending one the application) data under /sdcard/.android_secure and /sdcard/Android/.
It'll leave behind some files in the internal memory.
A2SD (and S2E and Link2SD) moves the ENTIRE application (app files, data files, dalvik-cache) to a separate partition on the SD Card, then links the apks to the filesystem (linking is Linux term for making a shortcut).
Another advantage of this is the bugs present in native apps2sd -- such as widgets not appearing after a reboot -- are not present in a2sd method. This is because of a mount script executed during the booting process.
This post was sent from hell.
scripts like dt a2sd tricks/fools the android to use sd-ext partition as an internal memory...
that's why when you use apps2sd(one that you can use from the app info menu) just moves a little part of the app to sd card while scripts like a2sd moves the whole data to the ext partition..
But I have to create a partition before I flash dt or link2sd? Or it is a virtual partition that the program creates? Is it really worth to use dt or link2sd?
Sent from my GT-S5830 using Tapatalk
Yes, you need to create a partition on your SD card (512MB is more than enough). The easiest way is to just partition through CWM Recovery (under Advanced, I think). It'll automatically create an ext3 partition of your choice size (also swap, if you want swapspace).
Don't be deterred by ext3 because it's lower than ext4; it's actually much more stable.
Is it worth it? Very, if you know what you're doing. As long as you don't mess around with the partition, say when you plug in USB mass storage mode to the computer, it should be fine.
My ace never appears on my cpu as a drive. Dunno what is the prob.
Anyway... how do I format my sd after it is partioned? To delete the partition ..
Sent from my GT-S5830 using Tapatalk
Darktremor's a2sd and CM kernel...
I've had some damage to my phone. More details over at my post in General questions.
My damaged unit. SK17i My consideration for replacement. MK16i. From Xperia Mini Pro to Xperia Pro. (For the price difference, it seems for the hardware upgrade to get the bigger unit.)
My basic setup? Custom Kernel with root and a2sd.
Problem. There seems no Custom Kernel but one... bbooff's. (Waiting to here if it also will support the a2sd of darktremor.)
I came across CM being available already for the MK16i.
Problem. I just use root & a2sd. Suites my simple needs. I don't do Custom Roms at present. My need is for a stable communication device.
When I got my SK17i. I read that there was a clash between CM and a2sd. Has this then been cleared up? (Fully? For those CM users who may know. I'm a noob to Android.)
Is it possible, from instructions I read on getting CM on the MK16i there's a CM kernel that must be installed 1st, to just use the CM kernel and Stock Rom?
I am just thinking maybe there will be some clash here? Then maybe not? I know the forum instructions did clearly say stock Kernel is incompatible with CM. That may be about some features CM wants to use. Stock Rom simply may not access any 'bonus' features of CM Rom but will there be a problem otherwise?
Anyone who knows more about Android... maybe have an idea?
My setup and use is pretty basic, pretty simple and no, I do not want those apps2sd programs that don't use an Ext partition and don't 'fool' the system into thinking it's running the programs on the system partition.
Well, looking for information. I would rather get the MK16i. Nice bit of kit, but I also firmly want the same basic little setup I've got here but there seems at the moment to be few Custom Kernel's for this device and I am not even about to try to roll my own. Wouldn't know where to begin.

[Q] Swap for U20i with nAa 10, MiniCM7 2.1.8 and about Ext4

1. About Swap
I've used latest nAa kernel and minicm7 for a while, but something bugs me..
It says that nAa kernel has "Swap" function. CUrious, I tried several methods.
Firstly, I tried to use swapper from android market. Seems like it's no use, since typing "free" on terminal emulator shows "0" for swapping (swap data is created already on my SD card). Not working, I uninstalled it.
Then, somebody told me to use swapper 2 since it's working nicely on him. Strangely enough, my market said it's not compatible with my phone.
Third, I tried to create a linux swap file on my SD card with 200 MB size using partition manager. And my phone runs lag like hell. So, I finally delete the partition again and wipe factory reset etc.
My question is : How do I turn swap things on ?
2. About Ext4
Until recently (before I created linux swap partition on my SD card and finally erased it again), I never create an ext4 partition on my SD card. Now, I'm trying to use it. What is the difference between using an ext4 partition and not ?
Thank you very much for your answer
StardustGeass said:
1. About Swap
I've used latest nAa kernel and minicm7 for a while, but something bugs me..
It says that nAa kernel has "Swap" function. CUrious, I tried several methods.
Firstly, I tried to use swapper from android market. Seems like it's no use, since typing "free" on terminal emulator shows "0" for swapping (swap data is created already on my SD card). Not working, I uninstalled it.
Then, somebody told me to use swapper 2 since it's working nicely on him. Strangely enough, my market said it's not compatible with my phone.
Third, I tried to create a linux swap file on my SD card with 200 MB size using partition manager. And my phone runs lag like hell. So, I finally delete the partition again and wipe factory reset etc.
My question is : How do I turn swap things on ?
2. About Ext4
Until recently (before I created linux swap partition on my SD card and finally erased it again), I never create an ext4 partition on my SD card. Now, I'm trying to use it. What is the difference between using an ext4 partition and not ?
Thank you very much for your answer
Click to expand...
Click to collapse
Here's the problem.
Apps2SD
SD swap files
SD cache files
All this adds up in total bandwidth use.
And then the speeds when reading and writing from the card are not really up to the task.
Even my Big x10i was not up to the task with a class 8 SD
The best would be for developers to partition a small piece of 'internal' storage to allow for a swap file.
OmegaRED^ said:
Here's the problem.
Apps2SD
SD swap files
SD cache files
All this adds up in total bandwidth use.
And then the speeds when reading and writing from the card are not really up to the task.
Even my Big x10i was not up to the task with a class 8 SD
The best would be for developers to partition a small piece of 'internal' storage to allow for a swap file.
Click to expand...
Click to collapse
I see then...
So, you're suggesting me to not use swap files ? ok then, thank you for your explanation and opinion

Getting a lot more internal memory

Hi, when i had a HTC desire, which had not a lot more internal memory than our phones, there was a script on one of the roms, DATA2SD i think it was called, after partitioning your card, the internal memory could go up to 2GB i think (well, on my 16gb card anyway), can this be done n our phones? and do any roms have this????
Two steps: 1) Format 2) Choose script.
First you need to format your SD card so you have a FAT32 partition (first primary partition) and an EXT partition as the second primary partition. I do this from the commandline, but the best option is to use CWM V5+ which automates this for you. Then there are several options for scripts which mount the EXT partition as a virtual internal /data/app/ directory
S2E is the recommended option if you use a cyanogenmod based ROM. It uses mount points.
A2SD is installed by default on ROMs that use ketut's kernel if I remember correctly. It uses a simple symlink.
Link2SD is available for multiple ROMs. It is the most "advanced" as it links individual apps rather the whole directory, but with more power comes less simplicity...
Ahh the Desire.....a phone that is still popular despite its age
Herpderp Defy.
biggary said:
Hi, when i had a HTC desire, which had not a lot more internal memory than our phones, there was a script on one of the roms, DATA2SD i think it was called, after partitioning your card, the internal memory could go up to 2GB i think (well, on my 16gb card anyway), can this be done n our phones? and do any roms have this????
Click to expand...
Click to collapse
Peep my signature.
search a bit in general section
there is a thread
1 guy did it
but its only for stock roms
and btw why the hell did u go from htc desire 2 sga lol

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