Possible to install Android on SD card? - EVO 4G Q&A, Help & Troubleshooting

I'm wondering if it's possible on a native Android device like the Evo to install and boot Android from the SD card?

It might brick the phone because its from a totally different device, and I doubt youll be able to use data or some of your hardware because of the radios. But you can probably root the device you want the android from, make a nandroid, and if it had an sd card switch it to the phone you want it on and have it rooted so you can flash the nandroid
Sent from my PC36100 using XDA App

vbetts said:
I'm wondering if it's possible on a native Android device like the Evo to install and boot Android from the SD card?
Click to expand...
Click to collapse
I don't think the post above mine is what you had in mind. I'm assuming you're thinking of running Android from the SD card like was done with some of the old WinMo devices. The answer is that it could be done in principle, but I don't think anyone's done the work to enable it on the Evo. There are a couple use cases where it could be useful (AOSP user booting into Sense to update PRL). But I don't think it's been something that's gathered much interest from the devs.

vbetts said:
I'm wondering if it's possible on a native Android device like the Evo to install and boot Android from the SD card?
Click to expand...
Click to collapse
This is being done on the Nook Color currently. However, I don't believe the Evo has the capability to boot from sd card, whereas the Nook actually gives boot priority to the sd card. It's pretty slick actually. My wife's Nook is bone stock internally for reading, but running CM7 & Honeycomb from an 8gb sd card.

Related

Desire root and only instapp App2SD keep original firmware?

Hi guys i need more space for apps, Can root be reversed i.e reset the whole phone like it was oringinally?
I got my phone last tuesday and all i want it apps2sd, do i have change the HTC firmware or does that stay and it hacks it and allows me to added apps2sd option?
Also am i able to restore it back to original ? if i brick it while trying to do this is there way to unbrick?
thank you from an andriod newbie
I've just flashed the apps2sd update over on the original firmware after rooting and the phones constantly rebooting at the quietly brilliant screen
technocat said:
I've just flashed the apps2sd update over on the original firmware after rooting and the phones constantly rebooting at the quietly brilliant screen
Click to expand...
Click to collapse
really, are you able to revert to original state?
managed to install custom rom with apps2sd on it and its working after 3rd attempt thank god! Apps2sd aint working on the rom either though (Pays-ROM Desire with Sense v1.4)...dont know whats going on.....wonder if its cause its an ext4 extension?.....
My advice to anyone is to NOT install APPS2SD, just wait for an official FroYo build to be leaked and installed on the Desire. It's full of issues at the moment.
Agreed. Wait for your sweeties
managed to install custom rom with apps2sd on it and its working after 3rd attempt thank god! Apps2sd aint working on the rom either though (Pays-ROM Desire with Sense v1.4)...dont know whats going on.....wonder if its cause its an ext4 extension?.....
Click to expand...
Click to collapse
Ext4 is not supported
My advice to anyone is to NOT install APPS2SD, just wait for an official FroYo build to be leaked and installed on the Desire. It's full of issues at the moment.
Click to expand...
Click to collapse
A2sd works fine, but it has a lot of downfalls. here are some examples:
not easy for beginners
Sd cards have to be in the device to boot
Cannot access apps with sd card mounted
Access to apps can be laggy due to card transfer rates
Etc....
If you guys are new to android, you're probably in the "download everything" phase. It's not realistic to keep every single thing. Be reasonable and you should be fine.
A2sd will be a thing of the past once 1gb+ roms become the norm.
eViL D: said:
A2sd works fine, but it has a lot of downfalls. here are some examples:
not easy for beginners
Sd cards have to be in the device to boot
Cannot access apps with sd card mounted
Access to apps can be laggy due to card transfer rates
Etc....
If you guys are new to android, you're probably in the "download everything" phase. It's not realistic to keep every single thing. Be reasonable and you should be fine.
A2sd will be a thing of the past once 1gb+ roms become the norm.
Click to expand...
Click to collapse
Or when FroYo is released
I still don't know how they'll manage to get APPS running from a FAT partitioned SDCARD?
How will they manage to make the Sdcard usable for apps and readable by Windows and other operating systems which don't support ext2/3?
abc27 said:
How will they manage to make the Sdcard usable for apps and readable by Windows and other operating systems which don't support ext2/3?
Click to expand...
Click to collapse
Correct me if Im wrong, but the only reason you have to use ext filesystems for A2SD is because that is what the 2.1 expects??
I can't see why you would need an ext filesystem for the APK files. The 'special' permissions on apps are not provided by the filesystem. Maybe cache and app data would require some level of security, but at least the APKs should happily live on FAT32.
Fingers crossed! I hope they sort something out.
Excellent advice, eViL D: I was a bit nervous about trying and Android phone in the first place but took the plunge due to the fantastic reviews on the Desire. I absolutely love this phone and I managed to root it without any problems. Fortunately I read about the A2SD issues before I installed it. Whew!!!
Being a complete newbie to Android, I am in the 'keep everything' phase but am starting to realise that there are a lot of apps that I simply don't need and probably won't use very often anyway. I reckon that if I find that I need them later, then I'll install them then. I've gotten rid of a number of apps and am really happy with the phone as it is. For now, I'm going to leave well enough alone. Will definitely keep an eye on the A2SD issue more out of curiosity than the need to use it.
I really wish I had the knowledge to help solve this problem and wish everyone who is working on it the best of luck.

To ROOT or not to root?

Just got my desire friday. It's awesome! But the lags are killing me! I'd like JIT, SetCPU, power managment, cool themes and better music player, that's all! It should be easy, just to hack android to get access to ROOT...
But seriously, I don't want to lose any settings and apps I've set-up. Also the process is complicated, and there is nothing like "one click ROOT access". Although I already have Android SDK(for testing purposes), I am maybe just a bit lazy
So what do you think, to root or not to root.
had to bump so fast!? is here anyone reading this?!
Desire forums seem kinda dead today. Everyone's probably got the World Cup fever lol
I personally would say no, but that's my opinion - I wouldn't wanna risk bricking my new device, I should also say though that I have no previous Android experience, so I don't know about you. So I'm waiting, hopefully an official release isn't too far off, and if my carrier doesn't release it quick, I will be goldcarding
I would go ahead and do it, even though the above poster stated that there is a strong possibility of bricking your device, this is true, but there have been recent developments made for this kind of issue - there are now complete guides in the ROM dev section detailing how to unbrick your device, or even run recovery from your phone without connecting to the PC lessening your chances of bricking it, and there is a Recovery mod also, so I would say it's safe to go ahead and root/flash.
Ok il'll try it, but i have some questions:
Will I lose any data or applications? I can't backup, I have 1gb left on my hdd.
Will I have to do factory or soft reset after flashing to custom rom?
Does flashing relace or "update" the system?
Is desire really having the CPU clocked at 1ghz or is it 720mhz like in HD2? Will overclocking it to 1ghz make the battery last less? How much then? Can you overclocking the graphics chip?
Thank you in advance.
Dany0 said:
Ok il'll try it, but i have some questions:
Will I lose any data or applications? I can't backup, I have 1gb left on my hdd.
Will I have to do factory or soft reset after flashing to custom rom?
Does flashing relace or "update" the system?
Is desire really having the CPU clocked at 1ghz or is it 720mhz like in HD2? Will overclocking it to 1ghz make the battery last less? How much then? Can you overclocking the graphics chip?
Thank you in advance.
Click to expand...
Click to collapse
Yes, if you attempt to a flash a custom rom that includes Apps2SD/A2SD, then you should backup the data on your SD card. The reason for this is because, with many (if not all) custom roms, excluding the Froyo roms, come with Apps2SD baked/cookef into the rom, requiring you to partition the SD card (which will also format your SD card, wiping everything) after flashing a custom rom. new rom then this will remove all data and apps, but nothing will be deleted on the sd card. I suggest you try backing up your sd card data to some storage media before attempting root and flashing to another rom.
You will notice that before flashing the rom of your choice, it is advised to wipe storage, cache, etc before flashing in recovery mode. After flashing, you can always perform a hard reset if you like, especially if you encounter any niggling bugs.
Yes, flashing will replace your stock rom image with the custom rom image.
You can flash Richard Trip's modified kernal, which allows you to perform undervolting and overclocking of the processor to run at faster or slower speeds. Overclocking will result in better performance but drain the battery quicker, Underclocking will save battery life.
Please read the second link in my sig for an in-depth explanation for rooting, flashing, and Apps2SD.
Note: if your phone is network branded then you will also be required a Gold Card and have an additional Micro SD card.
Note: if your rom comes with Apps2SD preinstalled, then do not install Apps2SD, only partition your sd card after flashing thr rom while still in recovery mode.
The process is:
Backup
Create Gold Card (if necessary)
Root
Place rom in root of sd card
Boot into recovery
Wipe everything
Flash rom in recovery
Partition sd card in recovery
Reboot
Restore backup to sd card.
That's all just too complicated, why is there no wizard application for it? I may make one, but it's still too complicated.
Can't you just open up cmd and type login: root pass: root?
To be honest, it's not too complicated, daunting at first, but when you read the nimbu guide (see my sig for Windows only method) for example, it makes perfect sense and it easy to follow. Just try it step-by-step and you will do it no probs.
All you have to remember is...
Dont install Apps2SD if it is already included in the custom rom you want to flash.
Create a Gold Card only if your phone is software branded. If it is generic, then you will not require a Gold Card.
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Ok I get myself a class 6(maybe class 10) 8gb card and try it, then I'll pick up wxPython and try to make a wizard
Just to add, for the Gold Card itself, you dont need to buy a large capacity sd card, even a 2GB one will do fine.
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I will gold card my old Nokia 5310 2gb card(although it has some undeletable extras... hmm..) or the one shipped with the phone. I want a lot space for movies, music and apps. So 8GB will be fine.
And most importantly I don't want ANY lag. **** driving me NUTS!
EDIT:
Just saw the tut again, hey this should be easy! K going on...
Dany0 said:
I will gold card my old Nokia 5310 2gb card(although it has some undeletable extras... hmm..) or the one shipped with the phone. I want a lot space for movies, music and apps. So 8GB will be fine.
And most importantly I don't want ANY lag. **** driving me NUTS!
EDIT:
Just saw the tut again, hey this should be easy! K going on...
Click to expand...
Click to collapse
Ok matey, that sounds absolutely fine. You could even go for a Class 2 SD Card. I currently have a Transcend 8GB Class 6 but to be honest, I have not really noticed any differences in speed with the applications.
Yes, it's not so bad when you read the guide first, it's looks a lot at first but it's just because all the steps are appropriately broken down, which makes things easier to understand. Give it a stab and if you get any problems, just post back here and I will help you out, if necessary.
Good luck
Dany0 said:
It's awesome! But the lags are killing me!
Click to expand...
Click to collapse
is it a branded phone?
I have no lag
in future froyo 2.2 will there be root option?
I doubt it, HTC and Google would not want to have you "hacking" their phones... not that we do that on XDA
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jimlad said:
is it a branded phone?
I have no lag
Click to expand...
Click to collapse
unbranded
lagging everywhere, menus, camera, gallery, videos, games(especially), apps, market, browser, settings, sdcard explorer, music player, and when you swipe over the trackball in home screens fast... LAG
Okay I got stuck at error 170, where do I download the drivers? I don't even know which do I need, do I need the HTC Sync or what? Or should I uninstall some drivers?
thanks
Yes, you need HTC Sync installed (this is on your sd card or you can download the latest version via HTC website). Also, ensure that you have USB debugging enabled (Menu > Settings > Applications > Development).
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Hi All,
my 2p worth (for what it's worth)
I rooted my desire and installed apps2sd and all was going well, until I discovered dust (a lot)under my screen and it has to go back to voda.
As there still isnt an RUU for voda uk I have had to install a generic wwe rom. It took me 6 hrs, and the fantastic help I received at modaco, to unroot and reflash the rom.
To say it was brown trouser time is an understatement lol
The only reason I rooted was for apps2sd and seeing as FroYo is going to include that facility, I don't think I will root again in the future.
I'm not saying don't root, but just make sure you can unroot if you need to.
I hope this helps?
Daz.
I rooted the same day it came out but only because i wanted paid apps available. And now its there i definately do not wanted to unroot
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!?
got 155 unkown error
What!?
EDIT:
not bricked.... phew
EDIT2:
Okay got to the wiping, tried to do the flash but it said I had no zip file on the sd card, so I thought that in the end I need a goldcard, btw can someone tell me what happens if you have branded phone but no goldcard? thanks, so back to what I was writing, so I downloadedthe hex editor, almost got to inserting the image, when i remembered that I already formatted the card already... boom! Of course it wasn't there! soo.. loading up hoping that FAT32 is still okay...
EDIT3:
phew... ROOTING!! yay ^^

Multiboot possible?

Is it possible to have multiple ROMs on one phone at the same time? (no nandroid)
This is not (yet) been developed. There is a way to boot from sd card, but I readed that a long time ago, not sure if thats been developed for daily basis use.
For now, you have to use the nandroid way to boot another rom.
Sent from my HTC Desire using XDA App
yes android can be booted from a sd card, just like it is on wm phones
Would love to see my device multi-booting other OS'
Hi there,
I understand it is possible to boot another android version from the SD card.
Now can another OS be booted, such as WM mobile or Windows Phone 7?

[Q] Transferring EVO 4g to grandaughter

Hi all,
I've had my EVO 4g for nearly 2 years now and recently stepped up to the 3D.
Over the last summer I had a terrible problem with my EVO rebooting using two different MicroSD 8 GB cards taking it into the Sprint store they said both cards are defective. So I bought a 4GB card and it worked nearly flawlessly since then (maybe a reboot once a month)
I had not rooted my phone until last fall when I bought a WIFI only iPad and needed to get the wireless tether option enabled...
Not knowing much about rooting or flashing ROMS and any of that stuff, I followed a sticky guide to rooting and went with the Warm 2.2 ROM from last fall.
When I got my EVO 3D I decided to sell my EVO 4G to my 20 year old granddaughter, I did a Wipe and installed CleanROM 2.0 which had rave reviews and I thought it would be as close to stock as possible.
I hadn't gotten around to wiping the SD card is it is 3/4 filled with my junk on it still.
2 days into her having the phone it is rebooting a dozen times a day for her.
Not good. I'm not sure if it's the new ROM or a corrupted spot on the SD card now?
If I just reflash the CleanROM 2.0 and then have the phone format the SD card might that clear it up?
No point doing a nandroid backup since that would have all my apps that wouldn't work for her, correct?
She really doesn't care about it being rooted, so what would be the easiest way to get it work for her in a stable way?
I apologize in advance if the solution seems easy to people hear, it seems complicated to me.
Thanks Crodley
Personally I would do a complete wipe and do a fresh partition on the SD card to remove anything you had on there. After that I would suggest installing MikG 3.11 as it is probably the most stable of the Sense ROMS.
I try other ROMs but keep going back to MikG as it performs flawlessly for me with no restarts or crashes of any kind.
ItsLasher said:
Personally I would do a complete wipe and do a fresh partition on the SD card to remove anything you had on there. After that I would suggest installing MikG 3.11 as it is probably the most stable of the Sense ROMS.
I try other ROMs but keep going back to MikG as it performs flawlessly for me with no restarts or crashes of any kind.
Click to expand...
Click to collapse
Sounds like a good plan. Partition the SD card? Not sure how to do that part. I can do a google I guess.
Thanks
Crodley said:
Sounds like a good plan. Partition the SD card? Not sure how to do that part. I can do a google I guess.
Thanks
Click to expand...
Click to collapse
The option is in the recovery but there are some easy to follow guides around the site.
Here are the basic settings and it's pretty straight forward in the recovery.
- Swap partition = 0mb ( If you must have it but doubtful, 32mb should be enough.)
- Ext partition = 512mb to 1gb (MAX 2Gb if you have loads of APPs)
- Upgrade ext2 to an ext3 partition (but not 4).
Click to expand...
Click to collapse
GUIDE <<< It's quick and easy.
ItsLasher said:
The option is in the recovery but there are some easy to follow guides around the site.
Here are the basic settings and it's pretty straight forward in the recovery.
GUIDE <<< It's quick and easy.
Click to expand...
Click to collapse
Thanks yet again, I just woke up and am off to work, I'll give it a try went I get home and let you know how it went.
Crodley
You shouldn't need to partition the card if you are going to have mikg on there.
It sounds like your granddaughter doesn't need anything that would require any extra steps on her part.
Just reformat the card so that its a fresh start. Put any ROM on there (mikg is pretty much maintenance free). And boot it up and test it out before you give it to her...
A partition would be necessary only if you or your granddaughter have a huge amount of apps. Something tells me that she's not a power user...
~ I'm a fungi
Your other option is that if she isn't going to use any root functions, just unroot it for her. You don't have to bother with s-on or relocking the bootloader, just run an RUU to get it back to stock. This should eliminate any problems, unless the rebooting issue is a hardware problem. You also don't have to worry about her messing anything up with root, since she won't have that ability.
Of course if she uses any of the root functions - wireless tether, overclocking/undervolting, removing bloatware, etc, then this isn't the way to go. You could just flash a rooted stock rom as well.
In my opinion, if someone doesn't know what to do with root, or if they don't use it, they shouldn't have it. It'll just complicate things.
Thanks for all the information, I wiped the SD card and installed the Miks rom so far all smooth as silk.
Crodley said:
Thanks for all the information, I wiped the SD card and installed the Miks rom so far all smooth as silk.
Click to expand...
Click to collapse
Nope still rebooting about a dozen times a day, we're going to swap the 4gb sd card with an old 8gb card and see if that helps...
Well, it seems the 4GB card was the culprit. After swapping in another card, no reboots. Yay!

App Transfer?

Does anyone know of an app that can be used to transfer games/apps to an external hard drive? Or any way in general to do this? I heard of SD partitioning but im pretty sure it needs a flashed rom which im currently stuck in trying to get since Razr M doesnt have a recovery mode i can use. (I already tried Safestrap and it has no luck for me) I have already tried Link2sd and App 2 SD. Any other ways to get my games/apps to my sd card? Im running Jelly Bean 4.1.2
BioSpectre said:
Does anyone know of an app that can be used to transfer games/apps to an external hard drive? Or any way in general to do this? I heard of SD partitioning but im pretty sure it needs a flashed rom which im currently stuck in trying to get since Razr M doesnt have a recovery mode i can use. (I already tried Safestrap and it has no luck for me) I have already tried Link2sd and App 2 SD. Any other ways to get my games/apps to my sd card? Im running Jelly Bean 4.1.2
Click to expand...
Click to collapse
Razr M does have a recovery, you get to it by holding Power and Volume Up when it's turned off. It's useful if you need to reset your system, since you can use the Razr M utility here: http://forum.xda-developers.com/showthread.php?t=2249773 to flash the official 4.1.2 system.
But you shouldn't need to mess with the recovery to transfer games or apps to an SD card. I know that the native app2sd command in Link2SD doesn't work, but the symbolic link does. All you need to do is have your phone rooted (which the utility can also do) and put a second partition on your SD card, which is fairly straightforward. The Link2SD FAQ page has a couple of partition managers for each OS listed.
DjeserDjeseru said:
Razr M does have a recovery, you get to it by holding Power and Volume Up when it's turned off. It's useful if you need to reset your system, since you can use the Razr M utility here: http://forum.xda-developers.com/showthread.php?t=2249773 to flash the official 4.1.2 system.
But you shouldn't need to mess with the recovery to transfer games or apps to an SD card. I know that the native app2sd command in Link2SD doesn't work, but the symbolic link does. All you need to do is have your phone rooted (which the utility can also do) and put a second partition on your SD card, which is fairly straightforward. The Link2SD FAQ page has a couple of partition managers for each OS listed.
Click to expand...
Click to collapse
Im kinda nooby to the Whole android thing since i just recieved my phone like 2 weeks ago and ive been really adapted to the IOS software. But i was thinking of making a partition on a new SD card, Like 8 GB or something. But i was wondering if the stock 4.1.2 Firmware i currently use, will it be able to use the effect of the partitioned SD card?
BioSpectre said:
Im kinda nooby to the Whole android thing since i just recieved my phone like 2 weeks ago and ive been really adapted to the IOS software. But i was thinking of making a partition on a new SD card, Like 8 GB or something. But i was wondering if the stock 4.1.2 Firmware i currently use, will it be able to use the effect of the partitioned SD card?
Click to expand...
Click to collapse
Yes, you'll be able to use the partitioned SD card. I don't remember if Link2SD requires the partition you make ext2/ext4 or what, but you'll be more than capable of using it, as long as your phone is rooted. The utility I linked in my first post can do rooting if you need to root your phone.
Yeah my phone is rooted already. Will i be able to partition my SD card through ROM Manger? I've seen a couple videos about it. And also to Flash CWM or TWRP ino my device, my bootloader has to be unlocked correct?
BioSpectre said:
Yeah my phone is rooted already. Will i be able to partition my SD card through ROM Manger? I've seen a couple videos about it. And also to Flash CWM or TWRP ino my device, my bootloader has to be unlocked correct?
Click to expand...
Click to collapse
I don't know what the features of ROM Manager are. It might be easier to do it on a computer, but there might also be partition utilities for Android. I really couldn't help with that. And yes, to change your recovery you need to unlock your bootloader. All of that can be done with the utility.
Alright thanks man! You've been a great help! i just got a 16 Gb SD Card and im going to partition it sometime in the future. Thanks a lot mate!
tutorial
can someone please post a YouTube tutorial on how to use this utility

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