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[DEV] Native usb storage otg

Made some progress with USB storage without the use of an app. Setup so far is really simple. Add a line to /system/etc/vold.fstab that looks like this:
dev_mount usbdrive /mnt/usbdrive auto /devices/platform/tegra-ehci.0
Still need work on getting the external storage managed by the system.
WARNING:
This is just a first step and with no way to unmount using Android's storage manager you may corrupt your external storage.

calmfury said:
Made some progress with USB storage without the use of an app. Setup so far is really simple. Add a line to /system/etc/vold.fstab that looks like this:
dev_mount usbdrive /mnt/usbdrive auto /devices/platform/tegra-ehci.0
Still need work out how to unmount. hope this helps someone.
Click to expand...
Click to collapse
Does that mean I can back up and restore stuff via otg as if it were my external sd card?
Sent from my Nexus 7 using XDA Premium HD app

mrnovanova said:
Does that mean I can back up and restore stuff via otg as if it were my external sd card?
Sent from my Nexus 7 using XDA Premium HD app
Click to expand...
Click to collapse
u can with the new twrp
Sent from my Galaxy Nexus using xda premium

smirkis said:
u can with the new twrp
Sent from my Galaxy Nexus using xda premium
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Click to collapse
NOOOO! I Seriously! And you tell me this now. Thanks I'll give it a whirl.
Sent from my Nexus 7 using XDA Premium HD app

Wow I JUST got my OTG yesterday. Fantastic timing.

what this means... hopefully
As it stands now, adding this line will cause your N7 to automount a usb drive to /usbdrive. You will see "preparing usb storage" in the notification bar and your file explorer of choice will see the data in /usbdrive. Unmounting is an issue at this point. I hope to fix that in a few days when I get the time.

https://play.google.com/store/apps/details?id=eu.chainfire.stickmount
I believe this works on the N7 I am waiting on my cable to test. I realize you want to do it without a app but the syntax should be close.
Sent from my Galaxy Nexus using Tapatalk 2

calmfury said:
Made some progress with USB storage without the use of an app. Setup so far is really simple. Add a line to /system/etc/vold.fstab that looks like this:
dev_mount usbdrive /mnt/usbdrive auto /devices/platform/tegra-ehci.0
Still need work out how to unmount. hope this helps someone.
Click to expand...
Click to collapse
Correct me if I'm wrong but I believe that CM10 already has USB Storage OTG built into it with the last few nightlies.

djkinetic said:
Correct me if I'm wrong but I believe that CM10 already has USB Storage OTG built into it with the last few nightlies.
Click to expand...
Click to collapse
Yes it does from what I know
Sent from my Galaxy Nexus using Tapatalk 2

a day late and a dollar...
Haven't been following the cm10 builds. Still gonna push forward for the exercise.

People who don't run CM10, can use this method. Would be cool if unmount is done.

Guys, quick question as I'm receiving my N7 tonight, the usb stick format can be ntfs? Or only fat32? Thanks
EDIT: saw from other thread, ntfs seems ok as well. i already got the tab and will start unlock and root.
Tapatalked from my HOX

Versatile1 said:
https://play.google.com/store/apps/details?id=eu.chainfire.stickmount
I believe this works on the N7 I am waiting on my cable to test. I realize you want to do it without a app but the syntax should be close.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
Just wanted to confirm that stickmount works well with the N7.
I have it installed and I've used it on two different usb drives.
A 32GB PNY USB2.0 Flash Drive Stick
And an 8GB uSD card inserted into an elago II USB Reader.
Both worked without any issues.
However, I'm still intrigued by a method to get usb mass storage support natively w/o an app

That does it...I give in! I gotta try the twrp recovery. Feel like I just decided to cheat on my girlfriend.
Sent from my Nexus 7 using xda premium

I will be following your progress.

calmfury said:
As it stands now, adding this line will cause your N7 to automount a usb drive to /usbdrive. You will see "preparing usb storage" in the notification bar and your file explorer of choice will see the data in /usbdrive. Unmounting is an issue at this point. I hope to fix that in a few days when I get the time.
Click to expand...
Click to collapse
But stickmount already does that and it unmounts it as well.
Sent from my Nexus 7 using XDA Premium HD app

Can someone point me to an otg cable thats on a uk site pleae?
Sent from my Nexus 7 using Tapatalk 2

leelaa said:
Can someone point me to an otg cable thats on a uk site pleae?
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
I saw a post about it somewhere around here. Referenced Amazon.uk, the title was USB otg that work and ones that don't I believe. Google can probably get it. If I wasn't using the app I would hook you up.
Sent from my Nexus 7 using xda premium

calmfury said:
Made some progress with USB storage without the use of an app. Setup so far is really simple. Add a line to /system/etc/vold.fstab that looks like this:
dev_mount usbdrive /mnt/usbdrive auto /devices/platform/tegra-ehci.0
Still need work on getting the external storage managed by the system.
WARNING:
This is just a first step and with no way to unmount using Android's storage manager you may corrupt your external storage.
Click to expand...
Click to collapse
Can I ask, does this support NTFS r/w? or r/o.
Everything I've tried, aside from USB OTG Helper--including a CM10 kang rom that claimed to support ntfs OTG--will only mount r/o.
Including the command $ mount -t ntfs /dev/block/sda1 /usbdisk. I guess it's the ntfs driver or something? but it will only mount r/o. Even $ mount -o remount,rw /dev/block/sda1 /usbdisk does not work, it still is ro.

leelaa said:
Can someone point me to an otg cable thats on a uk site pleae?
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1812609
Sent from my Nexus 7 using xda premium

[Q] OTG USB memory

On my current Galaxy Nexus I can connect a USB memory stick through an OTG (On The Go) cable and read and write from and to it (root required for write).
How about the Nexus 5? I would not buy it if it could not do that.

hgmichna said:
On my current Galaxy Nexus I can connect a USB memory stick through an OTG (On The Go) cable and read and write from and to it (root required for write).
How about the Nexus 5? I would not buy it if it could not do that.
Click to expand...
Click to collapse
Confirmed working OTG. I used OTG disk Explorer lite to mount without root.
sent from my Nexus 5

jphilippon said:
Confirmed working OTG. I used OTG disk Explorer lite to mount without root.
sent from my Nexus 5
Click to expand...
Click to collapse
Great! Thanks.
Can anybody else confirm this just to make it entirely certain? Has anybody tried to write to USB mass storage?

hgmichna said:
Great! Thanks.
Can anybody else confirm this just to make it entirely certain? Has anybody tried to write to USB mass storage?
Click to expand...
Click to collapse
I've just used Stickmount to mount a USB device and successfully written 2 files to it, so I can confirm USB OTG is working just fine.

But you have to use a 3rd party app in order to write to a usb OTG flash drive or a simple file explorer is sufficient??
Also, you guys mention that no root is required, does this differ from 4.3 ??
On my Nexus 7 II with 4.3 I have to root it in order to use one of those 3rd party apps in order to write files on the usb disk. Is this correct?

The device does not have any mounting capability by default, so you must use apps (or a custom kernel) to do it. That means root.

Wow great to hear this. I have to return my N5 due to a faulty speaker, when i get a new one might drop down to the 16GB now if it has OTG.

Well this is great to know. I didn't want to open my nexus 5 until this was confirmed. I hate that the nexus 4 didn't have this functionality and its the only major gripe I had with that handset. Has anyone tried it nexus 5 with dualshock controllers or keyboards and mice??
OK so I tried it with USB keyboard mouse AND dualshock 3 working great!

Vincent Law said:
The device does not have any mounting capability by default, so you must use apps (or a custom kernel) to do it. That means root.
Click to expand...
Click to collapse
root? but this user on this thread said this:
"Confirmed working OTG. I used OTG disk Explorer lite to mount without root. "

onesolo said:
root? but this user on this thread said this:
"Confirmed working OTG. I used OTG disk Explorer lite to mount without root. "
Click to expand...
Click to collapse
To my knowledge you can read from USB memory without root rights, but to write you need root. Example app: StickMount.

hgmichna said:
To my knowledge you can read from USB memory without root rights, but to write you need root. Example app: StickMount.
Click to expand...
Click to collapse
as he didn't mention if it was read or write...
Too bad this isn't inbuilt on google's roms...

onesolo said:
Too bad this isn't inbuilt on google's roms...
Click to expand...
Click to collapse
Perhaps it is planned obsolescense. They don't want us to be able to expand the memory. They want us to buy a new phone sooner, rather than later.
At least I can find no other explanation.

Can somebody confirm if this is working with 4.4.4 without root? if yes which app?

CyanogenMod 11 M7 has OTG capability built-in
Just a remark on the sidelines. There was the wish that Google include OTG capability in their stock ROM.
They have not done it, but Cyanogen has. CyanogenMod 11 has OTG USB memory capability. Since version M7 it even includes exFAT in addition to FAT32.
So if you really want this capability, there is a way.

[Q] OTG Problem?

Hi guys! Just got a new USB OTG cable and also got stickmount PRO, and i connected my flash drive to my phone and stickmount detected it and i clicked mount and after i was done i clicked unmount and the flash drive got unmounted and so did my sdcard partition and it wouldn't be mounted unless i reboot my device, i've heard of this problem before but never found a solution. Also i'm running the latest version of slimkat and franco kernel, If there's a rom and, or kernel that supports OTG could you point it out for me please cuz i don't want to use stickmount because of this problem. I also tried usb OTG helper and the app crashes when i mount. Please help me and i'm sorry for asking a noob question.

Chaos kernel supports otg. I haven't tried it though.

Chaos is a CAF kernel so you'd have to use an old version on slim.
I use elementalx on slim which also automounts otg via the storage menu.
I still use stickmount too though because elementalx hasn't exported external storage in the correct way yet so can't use foldermount. If you simply want to browse though, elementalx is fine.
I've never had this problem with stickmount. I've never used franco though
Sent from my Nexus 5 using Tapatalk

rootSU said:
Chaos is a CAF kernel so you'd have to use an old version on slim.
I use elementalx on slim which also automounts otg via the storage menu.
I still use stickmount too though because elementalx hasn't exported external storage in the correct way yet so can't use foldermount. If you simply want to browse though, elementalx is fine.
I've never had this problem with stickmount. I've never used franco though
Sent from my Nexus 5 using Tapatalk
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Click to collapse
Thanks! I'm gonna flash elementalx and report back, also would you mind telling me what rom you're running just in case it didn't work for me.

gotenks22 said:
Thanks! I'm gonna flash elementalx and report back, also would you mind telling me what rom you're running just in case it didn't work for me.
Click to expand...
Click to collapse
Ha ha. Already mentioned it in the 2nd line of my first post
Have another look
Sent from my Nexus 5 using Tapatalk

rootSU said:
Ha ha. Already mentioned it in the 2nd line of my first post
Have another look
Sent from my Nexus 5 using Tapatalk
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Click to collapse
LOL I didn't see that. also i flashed elementalx and i'm still getting the same problem:crying:, i unmount and then a popup shows saying that youtube crashed and when i go to es file explorer it's the same problem. Is there another kernel which isn't CAF that natively supports usb otg?

You're unmounting via storage menu and not using stickmount?
No.point looking at kernels. This isn't a kernel problem. This is a you problem. By you, I.don't mean you yourself. Rather, I mean there is a problem with your config. Usbotg works fine with latest slim and elementalx without issue. Must be an app or something.
Sent from my Nexus 5 using Tapatalk

rootSU said:
You're unmounting via storage menu and not using stickmount?
No.point looking at kernels. This isn't a kernel problem. This is a you problem. By you, I.don't mean you yourself. Rather, I mean there is a problem with your config. Usbotg works fine with latest slim and elementalx without issue. Must be an app or something.
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
Thanks for telling me bout elementalx unmounting and mounting via storage menu works now, but the problem is still there with stickmount, it seems like it's stickmount's problem. You also mentioned that elementalx had a problem with external storage does that mean that i can't use apps like GLtoSD so that i can put my game data in my flash drive?

I only use stickmount because of a setting that's missing that prevents foldermount mounting folders from /sdcard to USB. You don't need to use it simply to browse.
No idea why stickmount causes this problem for you. Works fine for me.
No idea what gltosd is. You'll have to test it yourself
Sent from my Nexus 5 using Tapatalk

rootSU said:
I only use stickmount because of a setting that's missing that prevents foldermount mounting folders from /sdcard to USB. You don't need to use it simply to browse.
No idea why stickmount causes this problem for you. Works fine for me.
No idea what gltosd is. You'll have to test it yourself
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
GL to SD does the same thing as foldermount except it's a more user-friendly interface made for games

Probably wont work then without stickmount
Sent from my Nexus 5 using Tapatalk

rootSU said:
I only use stickmount because of a setting that's missing that prevents foldermount mounting folders from /sdcard to USB. You don't need to use it simply to browse.
No idea why stickmount causes this problem for you. Works fine for me.
No idea what gltosd is. You'll have to test it yourself
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
Just found out that the main problem was my explorer (after i unmount with stickmount es file explorer tells me sdcard not found but other explorers show it normally) it wasn't the kernel's problem nor stickmount's. Godammit i feel so stupid *facepalm*. Anyways thanks for helping me, also elementalx is amazing, really good battery life and performance.

Yep good kernel
Sent from my Nexus 5 using Tapatalk

[Q] ES File Explorer permission denied when copying to OTG flash drive

I've been getting this error whenever I try to copy anything onto a flash drive:
"EACCES (Permission denied)"
It used to work just fine before, so I don't know why it isn't working now.
The flash drive is EXFAT formatted. Phone is rooted, running ElementalX with EXFAT support ticked and Stickmount Pro. Reading any file still works.
Any ideas as to what happened?

keepcalmrollon said:
I've been getting this error whenever I try to copy anything onto a flash drive:
"EACCES (Permission denied)"
It used to work just fine before, so I don't know why it isn't working now.
The flash drive is EXFAT formatted. Phone is rooted, running ElementalX with EXFAT support ticked and Stickmount Pro. Reading any file still works.
Any ideas as to what happened?
Click to expand...
Click to collapse
What location are you browsing to to get to the flash drive? Is it the latest elemental?

rootSU said:
What location are you browsing to to get to the flash drive? Is it the latest elemental?
Click to expand...
Click to collapse
sdcard/usbstorage/sda1
Yes, I'm using Elemental 0.40

Does stickmount support exfat?
Sent from my Nexus 5 using Tapatalk

rootSU said:
Does stickmount support exfat?
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
I believe so, as long as the kernel does as well. I know I've been able to write to this drive before, just haven't done so in a while.

no idea.
keepcalmrollon said:
I believe so, as long as the kernel does as well. I know I've been able to write to this drive before, just haven't done so in a while.
Click to expand...
Click to collapse
Anyone any ideas? I am having the same problem, exact same scenario using rooted stock on nexus 5. :crying:

My solution to NEXUS 5 can write to OTG USB pendrive
Ok, that's that I did, and it worked ( 4 or moure hours testing various things)
I used a Corsair Voyager GO 64 gb with NTFS filesystem.
My Nexus 5 is rooted.
I installed Chainfire "StickMount". So we can mount out USB pendrive to /sdcard/ubsStorage/sda1 No need to be PRO app.
I installed Paragon "paragon NTFS&HFS". Open it, and will ask to fix SELinux policies to Permisive. So Root Explorer can see now /Data/Media/ClockWorkmod/backup
I installed Jrummy Apps inc. "Root Explorer". I will copy, for example /Data/Media/ClockWorkmod/backup to /sdcard/ubsStorage/sda1 whithout any problems.
Don't forget to unmount USB drive before disconnecting it, go to StickMount and choose unmount
ES FILE EXPLORER WILL SAY "No space" "Error" or similar
Worked for me!
I'm happy with my investigation. I used Root Explorer in the past, and now it's useful again.
Sorry about my english, not perfect.
ENJOY!

Fastest way to transfer files from Nexus 5 to PC [Without ROOT]

Hello !!
Google just brutally pulled out USB Mass Storage, not a good thing for users who don't root their phone. As you all know that MTP (Media transfer Protocol) is slow and frustrating and neither USB Mass Storage works on Nexus 5 so is there any way to transfer files at "HIGHEST POSSIBLE SPEED" between Nexus and PC ??
I'm tired of hunting, some help would be great Sagar Khanapurkar
Thank you )

Sagar Khanapurkar said:
Hello !!
Google just brutally pulled out USB Mass Storage, not a good thing for users who don't root their phone. As you all know that MTP (Media transfer Protocol) is slow and frustrating and neither USB Mass Storage works on Nexus 5 so is there any way to transfer files at "HIGHEST POSSIBLE SPEED" between Nexus and PC ??
I'm tired of hunting, some help would be great
Thank you )
Click to expand...
Click to collapse
They didn't just "brutally pull out" mass storage at all. Mass storage can still be used if you have an actual sdcard.
The problem is in fact that if you use the fuse file system to share /sdcard data space, which is the only method that works well, mass storage would be impossible.
Unfortunately this means that we're stuck with MTP and we all share the same issues. It needs vast improvement. This is a bi-product of using fuse unfortunately. You can't mount usb ass storage a fuse /sdcard because its on the /data partition and you cannot rip the data partition out whilst its in use, which is what mass storage would require
You have 2 options. Adb push / pull (see thread available via my signature) or using WiFi to transfer.
There are loads of apps that are available to do transfer over the network. Personally I just use a file explorer. Fastest? Adb because its wired but its not the simplest
Sent from my Nexus 5 using Tapatalk < Yes, I want you to know that I'm using a mobile client

I'll go with adb push / pull !! since it's the fastest available source.

Sagar Khanapurkar said:
I'll go with adb push / pull !! since it's the fastest available source.
Click to expand...
Click to collapse
Have a look at my thread "adb and fastboot. What is it?" Which you can get yo via the sticky thread on my signature.
I've not used it unrooted so I can't say if /data/media/0 works or if /sdcard is better. But please let me know how you get on.
Sent from my Nexus 5 using Tapatalk < Yes, I want you to know that I'm using a mobile client

rootSU said:
Have a look at my thread "adb and fastboot. What is it?" Which you can get yo via the sticky thread on my signature.
I've not used it unrooted so I can't say if /data/media/0 works or if /sdcard is better. But please let me know how you get on.
Sent from my Nexus 5 using Tapatalk < Yes, I want you to know that I'm using a mobile client
Click to expand...
Click to collapse
Can't I just pull /internal storage (( I know adb will be having different parameters)), but what I want to do is pull each and every single file which is on my 32 GB Nexus, I don't want system files, all I want is my files... ?

Sagar Khanapurkar said:
Can't I just pull /internal storage (( I know adb will be having different parameters)), but what I want to do is pull each and every single file which is on my 32 GB Nexus, I don't want system files, all I want is my files... ?
Click to expand...
Click to collapse
Your files are on /sdcard which mounts on /data/media/0
Not really sure what you're asking. I haven't mentioned system files, which you wouldnt be able to access without root anyway.
Sent from my Nexus 5 using Tapatalk < Yes, I want you to know that I'm using a mobile client

Yeah, OP, just `adb pull /sdcard/ <dest folder>`.