[Q] Apps to otg - Nexus 7 Q&A, Help & Troubleshooting

Is there a way to move apps or the apps data to a micro sd or flash drive that is connected by an OTG cable? This would be very helpful for some games

you could use a busybox script to mount the USB drive at /sdcard2 maybe, I cant see it being reliable though

davidcampbell said:
you could use a busybox script to mount the USB drive at /sdcard2 maybe, I cant see it being reliable though
Click to expand...
Click to collapse
Well I was looking for some way to create a link possibly something like Link2sd but to a micro sd card for apps that use a lot of data such as asphalt
It does not need to reliable because the apps are not that important

Related

[Q] Does mounting the sdcard as diskdrive really screws up a2sd?

I've read somewhere here in the forums that it can screw up the a2sd function
so how can i connect the phone to my PC (because using a card reader every time you need to connect your phone to a PC is @[email protected])
Is this true? any alternative?
I'm using wildpuzzle ROM btw
Hi Dudin.
As standard, when you connect the phone to the pc as a removable storage, Android prevents the SD from being seen by the phone at the same time. As A2SD installs apps to the SD, this obviously causes any Apps on the SD to not work. I dont think its a permanent screw up, as it all should right itself after you disconnect from the computer, but you do have options:
1:Connect as Sync or Charge only. (a quick but pointless workaround if you want to browse your Sd card from the pc),
2: Or do as I do and install "Dual Mount SD" from the market It makes the SD card accessible by both Android and the USB at the same time. Works perfect for me, I can still use my aps and access the SD from the PC simultaneously. (I have used it on Wildpuzzle, Openfire and Cyanogen Mod, Eclair and Froyo versions). You need to be rooted for this though as it asks for superuser permissions.
Hope this helps.
Ok I will clarify for you. If you use dt app2ext patch. When you mount your sd card, the computer mounts the fat32 partition, and does not detect the ext partition, so it does not screw your card up, or the apps.
if you are using froyo app2sd, the apps that are on your sd card will not work when the sd card is mounted.
thanks for the replies
I find a good alternative is Dropbox - and it is mentioned in a lot of threads.
I already used it for work and it is great. No looking around for a USB cable or turning off/remove case/remove card etc which takes ages! Dropbox is free so give it a go! I use it in conjunction with EZ File manager (i think thats what its called) to transfer stuff and unzip archives.
Hope it helps!

Can the USB host 2 storage devices?

I'd like to get the files off the camera, but the tab will not have enough space for the transaction. I need to dump the files directly onto a portable drive.
Can the USB host a camera and a 1TB drive with a USB hub?
Thanks
Short answer.. yes probably, but will have to work at it.
I'm assuming it already recognizes your camera and allows you to access the files. If not, then you've got a whole other problem.
Using a usb hub, first plug in the camera and let it mount to usb_storage.
Then plugin the other drive. If it's NTFS Formatted, you can use NTFSMount (search these forums for it) to mount the hard drive. If it's FAT32, you'll need to use a terminal emulator to mount the drive manually.
like I said, you'll have to work at it..
Euclid's Brother said:
Short answer.. yes probably, but will have to work at it.
I'm assuming it already recognizes your camera and allows you to access the files. If not, then you've got a whole other problem.
Using a usb hub, first plug in the camera and let it mount to usb_storage.
Then plugin the other drive. If it's NTFS Formatted, you can use NTFSMount (search these forums for it) to mount the hard drive. If it's FAT32, you'll need to use a terminal emulator to mount the drive manually.
like I said, you'll have to work at it..
Click to expand...
Click to collapse
You can also use an ADB shell to mount the drives. No need for extra software on the tab if you don't want.
muqali said:
You can also use an ADB shell to mount the drives. No need for extra software on the tab if you don't want.
Click to expand...
Click to collapse
Hm...I may have to try that. I haven't used the ADB shell, but I can't imagine that being too hard as long as the drives are recognized.
Thanks.

Tutorial: how to use a nfts microsd in your p6800

I confirm it!
1 format your mocro sd on nfts using wimdows 7
2 insert the card in your 7.7 and dont care of the tablet says that the card is invalid
3 launc mount drive that is free on android market
4 unchek device filtering
5 select the last bottom drive that is the only one nfts drive avaiable
6 tap the upper right button, the one that have the icon of a drive
7 now you should see in the right colum your drive with a bar thar rapresents the free space, if you cant see this, reselect the nfts drive on the left colum and retap the mount drive icon (upper right) until you can see the drive mounted on the right colum.
8 when your drive is mounted you can find the drive folder with a root enable file manager like honeycom fm hd, the folder is under the system folder named mnt
Tht is all it works fine amd you cam close the app drive mount, the tablet comtinue to recognize the nfts micro sd wothout the app running. Now i can put my hd movies larger than 4 gb inside my micro sd and play them with my 7.7
The only problem is that tje sistem apps are setted to save thinks in mnt/externaldevice, so if you want save you movies or photos taked with the 7.7 camera inside your microsd you cant do it, you have to move them from your tablet memory to your microsd nfts using a file manager, but this is a little problem nothing of big
If any brave user is able to tweak the camera app to save the moviesnor photo inside the path mnt/nftsdrive please do it, after this all is perfect. Thanks
thanks!
btw, it's called NTFS, not nfts
Yes you are right, i do ever this mistake xD
Do you need to root your tab ?
Yes root is needed
Thanks.
I got it to work.
But there is a problem.
How can I transfer a 6 GB file to my 64 GB SD card using usb cable connected from my desktop to the Tab 7.7 ?
Currently I have to take out my SD card from my tab and using an adapter to transfer the movie to it (from my desktop to the SD card).
This is a tedious process and I don't want to keep taking the SD card in and out of my tab. I want to transfer my big movie file straight from my PC to the tab when it is connected via USB cable.
Currently, when I connect the tab to my desktop, I only see the internal storage of the tab and not the external NFTS sd card.
yes i know, this is a big problem, but unfortunatly i am unable to solve it, becouse the sd is mounted in a different place,in the origins the card id in mnt/externalstorage, but with the app drive mount tha parh is different..
Raziel_Sicily said:
yes i know, this is a big problem, but unfortunatly i am unable to solve it, becouse the sd is mounted in a different place,in the origins the card id in mnt/externalstorage, but with the app drive mount tha parh is different..
Click to expand...
Click to collapse
perhaps softlinking the path may help?
it can help, but how to do this?
Maybe by transfering from your desktop to the tab using Samba through your local network (ie wifi instead of USB) and a SAMBA app on the GTAB ?
Raziel_Sicily said:
retap the mount drive icon (upper right) until you can see the drive mounted
Click to expand...
Click to collapse
Ya,it's kind of tricky here.Let's why I failed mount ntfs card before...
Cuz, I give up after few trys..
Did it again today,and I successed in mounting ntfs card.
jcm0 said:
Maybe by transfering from your desktop to the tab using Samba through your local network (ie wifi instead of USB) and a SAMBA app on the GTAB ?
Click to expand...
Click to collapse
Yes i know this method, but this is only wifi , it is more slow than usb. To do this just install astromanager and configure a spb network with the ip of your computer, after this share a folder from your pc and then you can copy files from your pc to your tab microsd via wifi
I've just made an app to mount NTFS sdcard.
It allows you to use it like normal FAT32 sdcards,
working with Stock camera app or MTP file transfer.
Could anyone try this?
I'm going to put this to android market
and I've already purchased a developer account,
but it seems to take some time to be able to upload my app...
My English is not good, I know
If there are any weird wording, let me know.
** alpha version **
** only for root users **
** only for Galaxy Tab 7.7 ... for now **
This app is to mount SD Card using NTFS.
/mnt/sdcard/extStorages/SdCard is the root of sdcard.
Auto-mount when the Android OS starts.
Or you can mount/unmount it manually.
** Not Bug **
- If you don't do "Safely Remove Hardware"
when you take your sdcard from PC,
it takes some time to mount it.
** Confirmed Issues **
- Only NTFS sdcard use assumed.
This app may prevent using FAT sdcard.
- Once unmounted, even after you mount again manually,
Android OS don't detect the sdcard.
You can access it with file managers or other apps,
but stock camera and settings app don't.
(Let me know if you know any solutions for this.)
- At the first attempt to mount (and get permission for su),
Android OS could fail to detect the sdcard.
It may be caused by delay of Superuser asking if it's ok or not.
- No error handling
** Disclaimer **
I am not responsible for any damage caused to your device or data or feeling.
It is recommended to backup your precious data.
Perfect app!! it works fine.
For this point
- Once unmounted, even after you mount again manually,Android OS don't detect the sdcard.You can access it with file managers or other apps,but stock camera and settings app don't.(Let me know if you know any solutions for this.)
It is not enought to restart the device in order to let android and camera/gallery to recognize the ntfs card ? This will solve the problem?
Raziel_Sicily said:
Perfect app!! it works fine.
For this point
- Once unmounted, even after you mount again manually,Android OS don't detect the sdcard.You can access it with file managers or other apps,but stock camera and settings app don't.(Let me know if you know any solutions for this.)
It is not enought to restart the device in order to let android and camera/gallery to recognize the ntfs card ? This will solve the problem?
Click to expand...
Click to collapse
Thank you!
Of course, after rebooting the device,
sdcard can be mounted and Android OS detect it as usual.
It seems initial booting and inserting sdcard trigger detecting process,
but I don't know how to let the os to do it by my app.
dont worry your app is awesome as it is it is not a big problem to reset for make it functional after the unmount, just specify it when you sell in android market. Thanks so much for the app
Pretty great app to bad i left my 7.7 at home once i get home this will be the first thing i try. Btw any plan for galaxy note ver too?
Thanks alot
kwanying said:
Pretty great app to bad i left my 7.7 at home once i get home this will be the first thing i try. Btw any plan for galaxy note ver too?
Thanks alot
Click to expand...
Click to collapse
I think it's possible to improve this app to work on galaxy note,
I don't have one though.
All I need is sdcard's mount point ( "/mnt/sdcard/external_sd" ? maybe ) and
device name which is like "/dev/block/mmcblkxxx".
If you can get these info, please pm me.
Thanks.
Thanks for awesome apk~
If you have any plan put it on the market, plz let us know.
We will support it!!
please hurry up if you want to gain money, becouse the huawei media pad woth ics of my girls can read ntfs micro sd, i think that with the ics update the p6800 will read the ntfs from defoult.

Saving installed apps to flash drive using otg?

Hey everyone! I'm new to xda and I've been looking for the answer to this question everywhere, but have yet to find it. I bought a 64gb sandisk cruzer usb drive to use with my otg cable with the stickmount app. Because of limited storage, I was wondering if I could actually save installed applications to the flash drive? In other words, if I can use a feature similar to "save to sd card" for apps, but have the apps save to my flashdrive. If anyone could make a video or just type up a response, I would really appreciate it.
brazilianmdn said:
Hey everyone! I'm new to xda and I've been looking for the answer to this question everywhere, but have yet to find it. I bought a 64gb sandisk cruzer usb drive to use with my otg cable with the stickmount app. Because of limited storage, I was wondering if I could actually save installed applications to the flash drive? In other words, if I can use a feature similar to "save to sd card" for apps, but have the apps save to my flashdrive. If anyone could make a video or just type up a response, I would really appreciate it.
Click to expand...
Click to collapse
Hi,
Haven't tried it myself but you could probably use symbolic link on sdcard\somedir linking to the connected usb drive.
here is a link with more details:
http://forum.xda-developers.com/showthread.php?t=1442729
I heard that you can play off the rom that stored on otg drive. I am not sure about installed app, haven't try that myself either.
ES File Explorer has the ability to save apps to a folder that you select.
--
Sent from my Nexus 7 using Tapatalk 2
Maybe something like this could be used for the Nexus 7?
http://forum.xda-developers.com/showthread.php?t=1410262
I have not tried this but the feature the OP is talking about would be very nice to have
racer321 said:
Maybe something like this could be used for the Nexus 7?
http://forum.xda-developers.com/showthread.php?t=1410262
I have not tried this but the feature the OP is talking about would be very nice to have
Click to expand...
Click to collapse
I was going to write about the same thread. I tried it with NOVA3 and it works great.
You can mount directories from connected USB fairly easy.
You figured it out for nova?
lionsh said:
I was going to write about the same thread. I tried it with NOVA3 and it works great.
You can mount directories from connected USB fairly easy.
Click to expand...
Click to collapse
Did you do this with stickmount installed? How exactly did you do it? I moved all Nova's data to the usb drive and deleted it from the Android/data directory but it still tries to download the aditional files back to the tablet. Any idea why?
lionsh said:
I was going to write about the same thread. I tried it with NOVA3 and it works great.
You can mount directories from connected USB fairly easy.
Click to expand...
Click to collapse
How exactly did you go about doing that? I Tried for both shadowgun and Nova 3, and both tried to redownload the data
I can confirm that Directory bind does work..
I tried it with the following games..
Order and chaos (game i get on sometimes )
Asphalt 7
Dead Trigger
co-pilot gps (maps are 2 gb)
I have moved a few other things as well..
I am running the leggs rom with Nova launcher on my device. No other mods.
otg i use is a cheap otg cable from amazon. i think was like 1.99 for 4of them from Ohio someplace..With a sandisk micro usb key chain reader.and a Patriot 64 gb micro usb card class 10.. There Highest grade card. I tried this on a 8 gb generic card that was class 4 the games would not load or would stall and shutter when they did.. SO I WOULD Say a fast card is a MUST..
Good luck .. i will post some pics of mine in the thread i created yesterday in the correct forum where i was asking for others experience. Before i tried this last night..
Apps
roids333 said:
How exactly did you go about doing that? I Tried for both shadowgun and Nova 3, and both tried to redownload the data
Click to expand...
Click to collapse
I also tried it with asphalt 7 and when I open the application it still asks me to download. I first moved the application's data to the otg on a folder called "asphalt" then use directory bind to link that folder with the one where the data should be.
Any help would be appreciated.
(also tried it with Transformers on Google movies and did not work)
Saving installed apps to a flash drive using otg cable
Dude ,create a link in the obb folder to the place in the flash drive where you want to save the game
press thanks if i helped
you can use LetsGoApp try it
It can APP to sd or otg
It can run App at sd or otg(not install)
website
http://www.letsgoapp.net/?p=351
you need root install buseybox
and install LetsGoApp http://www.letsgoapp.net
LetsGoApp Can
App 2 SD or OTG
After replace Android device, the Apps can still be run at MicroSD or OTG by LetsGoApp.
LetsGoApp is a App, which is a kind of solution for storage shortage and backup data.
The Apps can be run by LetsGoApp within the MicroSD or OTG on the most of Android devices .
The Apps can copy from MicroSD or USB OTG to smart phone LetsGoApp.
You can try it
yrahate7 said:
Dude ,create a link in the obb folder to the place in the flash drive where you want to save the game
press thanks if i helped
Click to expand...
Click to collapse
Can you elaborate a bit more like a step by step please..
I dont remember how i did it, but all ii remember is that i had to create symlink to the particular obb file from /android/obb/game.name/file to the file`s location in pendrive..
search google on how to create Symlinks in order to do that.
if you need more help,pm me.

increase 16gb harddrive space for roms/emu/android games? whats the best way? (use sd

and is there a guide to do this, is it using the sd?
what software apk files do i need?
thanks
I'm using default option to transfert apps on SdCard (after installing), on menu setting/applications.
does that transfer the big obb/data files?
kyrusdemnati said:
does that transfer the big obb/data files?
Click to expand...
Click to collapse
It did with Doom 3. All 4GB transferred to my SD card.
But YMMV depending on the app of course
I have bought Tales From the Borderlands, which BTW plays really nice with the Nvidia-controller. Whereas the app itself is installed on the microSD-card, the game data it self (e.g. the different seasons - and those are several megabytes) will load internally. That's sad.
Apps to externals HDD
ive been trying to figure out how to move apps from the internal memory to an external HDD i alread used the drive to create a TWRP backup, i can also see the drive in ES file explorer but i cant find any apps or method to move app OBB/DATA to an external HDD there are plenty for apps to SD but i need APP to HDD. can anyone shed some light on this? do you have this kind of thing working?
beefy143 said:
ive been trying to figure out how to move apps from the internal memory to an external HDD i alread used the drive to create a TWRP backup, i can also see the drive in ES file explorer but i cant find any apps or method to move app OBB/DATA to an external HDD there are plenty for apps to SD but i need APP to HDD. can anyone shed some light on this? do you have this kind of thing working?
Click to expand...
Click to collapse
I believe Apps to USB storage will be available when we get an Android M update for the Shield TV.
any news on android m ?
If you happen to have xposed
Theres a module thats purpose is to "reroute" those internal folder contents to its counterpart on external sd card
Theres no mention of usb harddrive, but those in this situation thats willing to test and find out......
"Change path to internal SD card on OS level! Android Storage API tweaks.
This module changes path to internal SD card.
You can: change path to internal SD which is returned by System API, change path to obb dirs, app files, download dir (you can have everything on SD card!)
Control it in app settings."
[Xposed][MODULE][4.0+] XInternalSD
http://forum.xda-developers.com/xposed/modules/xposed-disablesignaturecheck-t2789267
Github
https://github.com/pylerSM/XInternalSD
If there are and it works, im sure future readers in this situation would appreciate the confirmation assuming theres no other way
Xposed
I'll try that out don't have xposed installed yet but I guess that will have to be the next thing on my list.
on full android i use link2sd.
@tailslol
Thanks for the tip with the app:good:
Apps to externals HDD
For apps to HDD you need folder mount tested and working
beefy143 said:
For apps to HDD you need folder mount tested and working
Click to expand...
Click to collapse
I made a post about it here on xda in shield android tv general.
Why does Nvidia even keep putting 16GB options in these tablets and STB? I swear 32GB should be the absolute minimum.
Sub-Negro said:
Why does Nvidia even keep putting 16GB options in these tablets and STB? I swear 32GB should be the absolute minimum.
Click to expand...
Click to collapse
Anyway the beta 6.0 is comming with native app to SD support.
tailslol said:
Anyway the beta 6.0 is comming with native app to SD support.
Click to expand...
Click to collapse
Does the apps to SD support in 6.0 move everything? Obb and Data.
Also will it support moving to USB or external HDD?
If not I would say it's still pretty useless to me.
beefy143 said:
Does the apps to SD support in 6.0 move everything? Obb and Data.
Also will it support moving to USB or external HDD?
If not I would say it's still pretty useless to me.
Click to expand...
Click to collapse
Everything,yes but sd only,not USB.
It mount USB as a external device.
There is no "best way" until we can figure out a way to get the Shield TV to support EXT4 file system.
I installed a custom kernel on my Galaxy Note 10.1 v2014 16GB tablet so I can use my 64GB external micro SD as "internal" storage. It works fairly well. It's not perfect, but it works well.
Once I got my tablet to recognize EXT4 file system, I was able to format my micro SD to EXT4 use a Windows app, there are several.
Then, I used Link2SD to mount the card as "internal storage".
My internal storage has only 10gb free when it's stock with no apps installed. I cleaned out the bloat and managed to recover another 0.4gb.
Using Link2SD, I'm able to install another 11gb of apps and games onto my tablet. My real internal storage now is about 8.82gb free. The rest of the data is stored on the micro SD.
For a lot of apps, it's able to store 100% of the app's data onto the micro SD.....I mean 100%!
BUGS:
Because of the way my tablet mounts the micro SD, if I ever have to reboot my tablet, then I have to reboot it twice. First, I do a "hard" reboot". Second, I do a "soft" reboot. The first reboot mounts the micro SD. But, because Links2SD loads before the micro SD mounts, it doesn't see it. So, I do a "soft" reboot, which only reboots the Android UI. Links2SD has a built-in feature to do this. After the soft reboot, Link2SD sees it. You have to buy the paid version to move 100% of the data to the micro SD but it was only $2-3.
Once in a blue moon, my NOVA launcher acts weird. I just do the process above and it resets it.
Without directory linking, which is how Link2SD works, then there is no BEST WAY to do this because there's no way Android will move 100% of the app to the external storage. Link2SD creates symbolic link on the internal storage, so when you look at the App Manager, it still thinks it's internal and even gives you the option to MOVE TO SD but don't do that! It's already on the SD.
So, bottom line, if you want this to work for our Nvidia Shield TV's, then you need to spread awareness to Nvidia and devs here about EXT4 file system support and hope that someone can port it to our machines!
Neo3D said:
There is no "best way" until we can figure out a way to get the Shield TV to support EXT4 file system.
I installed a custom kernel on my Galaxy Note 10.1 v2014 16GB tablet so I can use my 64GB external micro SD as "internal" storage. It works fairly well. It's not perfect, but it works well.
Once I got my tablet to recognize EXT4 file system, I was able to format my micro SD to EXT4 use a Windows app, there are several.
Then, I used Link2SD to mount the card as "internal storage".
My internal storage has only 10gb free when it's stock with no apps installed. I cleaned out the bloat and managed to recover another 0.4gb.
Using Link2SD, I'm able to install another 11gb of apps and games onto my tablet. My real internal storage now is about 8.82gb free. The rest of the data is stored on the micro SD.
For a lot of apps, it's able to store 100% of the app's data onto the micro SD.....I mean 100%!
BUGS:
Because of the way my tablet mounts the micro SD, if I ever have to reboot my tablet, then I have to reboot it twice. First, I do a "hard" reboot". Second, I do a "soft" reboot. The first reboot mounts the micro SD. But, because Links2SD loads before the micro SD mounts, it doesn't see it. So, I do a "soft" reboot, which only reboots the Android UI. Links2SD has a built-in feature to do this. After the soft reboot, Link2SD sees it. You have to buy the paid version to move 100% of the data to the micro SD but it was only $2-3.
Once in a blue moon, my NOVA launcher acts weird. I just do the process above and it resets it.
Without directory linking, which is how Link2SD works, then there is no BEST WAY to do this because there's no way Android will move 100% of the app to the external storage. Link2SD creates symbolic link on the internal storage, so when you look at the App Manager, it still thinks it's internal and even gives you the option to MOVE TO SD but don't do that! It's already on the SD.
So, bottom line, if you want this to work for our Nvidia Shield TV's, then you need to spread awareness to Nvidia and devs here about EXT4 file system support and hope that someone can port it to our machines!
Click to expand...
Click to collapse
you are a bit late but this is ok
https://www.youtube.com/watch?v=QtPGPBN5PJQ

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