Develop Bugs

[Q] Why do folders on /SDCARD appear empty through computer?

This is driving me crazy. I want to copy the TitaniumBackup folder from my GNEX to my Win7 PC.
Looking at the folder through Root Explorer on the GNEX all appears normal. When I look at the folder through my computer the folder is showing but the contents are backups that are almost a month older than are on the GNEX. If I delete everything in that folder FROM THE PC it still exists on the GNEX.
It is like it is looking at a different folder entirely however looking and searching through ROOT EXPLORER there are no other TITANIUM BACKUP folders.
This happens with a lot of apps. Example: I created a ZIP file using ROOT EXPLORER. The zip, viewing through ROOT EXPLORER is located in the /SDCARD/SPEEDSOFTWARE/ZIP folder however when I look at the SPEEDSOFTWARE folder via my PC the folder is empty.
I have tried both MTP and PHOTO mode. This happens with a lot of folders when trying to view them from my PC connection. Some stuff is there and a lot is not.

Hmmm, there is a /MNT/SDCARD and a /SDCARD folder (I don't know much about Linux) and the files I am NOT seeing on my PC are in /MNT/SDCARD and the files I am seeing are in /SDCARD. Why are there 2 different "SDCARD" folders? I changed the TitaniumBackup to save to /SDCARD instead of /MNT/SDCARD but the backups are still not viewable (or copyable) from my computer. I just don't get it.
So the question is, how do you "backup" the contents of the "SDCARD" directory if you can't see the files when plugged into the PC?
Well, after comparing all the "visible" files on my computer when I access the GNEX via MTP vs what I see using ROOT EXPLORER the ONLY 2 folders NOT visible from my PC are TITANIUMBACKUP and SPEEDSOFTWARE (thus is the ROOTEXPLORER app data). Why would they be hidden?

It's due to how the Android MTP service works. It hasn't scanned your internal storage for the new files/directory to present to your PC yet.
Download and run an app called SDrecan from the Market. This will force the media services on your phone to rescan the device.
Sent from my Galaxy Nexus using XDA App

Absolutely amazing! Thank you so much! I have been pulling out my hair for days!

thank you! I had the same problem!worked flawlessly!

silow said:
Download and run an app called SDrecan from the Market. This will force the media services on your phone to rescan the device.
Click to expand...
Click to collapse
Thanks! This was really driving me crazy...

is there one for phones on android kitkat 4.4 and up

silow said:
It's due to how the Android MTP service works. It hasn't scanned your internal storage for the new files/directory to present to your PC yet.
Download and run an app called SDrecan from the Market. This will force the media services on your phone to rescan the device.
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
this app is force closing. i cant even run it . do you have any idea? just today was working fine , i installed a custom rom and now when i try to put another roms on my sd card , i get this message that it's empty

trickster mod also has a media rescan option in bottom of tools section if this is helpful to you, I have to use it after using the "a better camera app" in order for pics to show in gallery without reboot

Root Explorer Error

I just unlocked, rooted and restored all files in my nexus. I went into root Explorer to delete unwanted files and am getting a delete failed error every time I try to delete a file. Also my screen shots are no longer saving it says storage is in use. Anybody experience anything like this after rooting?
Sent from my Galaxy Nexus

Marcg23 said:
I just unlocked, rooted and restored all files in my nexus. I went into root Explorer to delete unwanted files and am getting a delete failed error every time I try to delete a file. Also my screen shots are no longer saving it says storage is in use. Anybody experience anything like this after rooting?
Sent from my Galaxy Nexus
Click to expand...
Click to collapse
Are you trying to delete system files? Do you have SU installed? Are you clicking the R/W option. More details please.....

Several people have reported the issue with screen shot, to fix it they've had to rename the pictures folder(Seems like the folder is read only).
Swiftkey'ed on my CM9 Galaxy Nexus

No system files just old pictures, music files and other misc. It is set as r/w, also I am getting a few apps saying I need storage available that is writable. Something has to be up with the internal storage not allowing me to access or write to it.
Sent from my Galaxy Nexus

Well I am able to take screen shots by renaming he folder. However, I am still unable to write anything to my sdcard or modify files through root Explorer or any other file manager app.
Sent from my Galaxy Nexus

Root explorer - How to text edit
Hi All,
I have a problem with my root explorer. I am not able to open a file to edit. If i long press on a file , i dont get any option to open/edit the file.
i was supposed to edit gps.conf file under /system/etc but unable to do so from root explorer.
PS: i mount r/w from the root explorer every time i try..
Please help.

If you have any directories/files that you can't modify or delete, then boot into CWM recovery, plug in the USB cable, go into adb shell. Also make sure that /data is mounted in the CWM mounts menu. Then:
cd /data/media
chown -R media_rw.media_rw *

root explorer delete failed
danger-rat said:
If you have any directories/files that you can't modify or delete, then boot into CWM recovery, plug in the USB cable, go into adb shell. Also make sure that /data is mounted in the CWM mounts menu. Then:
cd /data/media
chown -R media_rw.media_rw *
Click to expand...
Click to collapse
i'm having this crazy "delete failed" error every time i try to delete any file in sdcart, external, and root directory (copy-paste, root, permissions works fine )
i tried to delete any remains of root explorer with es file explorer ((which works fine btw so its not a problem of partitions i think), re installed the program again but its the same . Flashed the rom from the beginning with a full wipe but its the same
this error happened first when i updated from blackmart alpha to some rootexplorer v.99. I uninstalled that but it left this error
Any idea what is causing that
I'm very curious and would appreciate it
thanks

I found a way to delete the files you suggest using Root Explorer. Go into /data/media/<navigate to the directory that you want to delete files>.. make sure the folder is mounted as r/w and delete the files you want to delete. This is how I bypassed the delete failed issue in Root Explorer...

rester555 said:
I found a way to delete the files you suggest using Root Explorer. Go into /data/media/<navigate to the directory that you want to delete files>.. make sure the folder is mounted as r/w and delete the files you want to delete. This is how I bypassed the delete failed issue in Root Explorer...
Click to expand...
Click to collapse
^^^^ this

Thank you rester, this worked for me too. Was pulling my hair out.

[Q] LG G3 Lollipop - No Internal SD Card?

I have a strange problem and I haven't been able to find a resolution online. I'm hoping someone smarter than me can offer a solution.
I have an AT&T LG G3 (LG-D850). When I got it, it had stock KK. I rooted it with Bump and everything was cool. I stayed with stock.
Last night I upgraded it to Lollipop using the stock, bump'd LG-D850 20F Lollipop 5.0.1 ROM from autoprime. I didn't run into any problems with the install. The phone appeared to be working fine.
However, today I'm having trouble with the internal storage. When I try to download a file from the internet, it's failing. In the stock browser, it just fails. Downloads says "<Unknown> Failed." In Firefox, it tells me "Cannot download file because SD card is in use." In Chrome, it tells me "No SD card."
I'm also not able to move files to or from internal storage. I can cut, copy, and paste files from one folder on my external card to another on my external. However, I can't cut, copy, or paste files from one folder in my internal storage to another folder in my internal or external storage. I've tried both the stock file explorer as well as FX.
I tried the SDFix app from NewApp on the off chance that it would help (I read somewhere it would also work on L), but it had no effect.
I can still download apps from the Play store and install them. However, if I create a new file in QuickOffice, I can't save it ("Failed to save document.") I can navigate to root and copy/cut/paste files from the data/app folder to my external card and other folders. I think the issue is the system/sdcard folder. The owner/group on the folder is root and read, write, and exec are all checked.
Does anyone know what the permissions on that folder should be? Or if that's really my problem at all?
Thanks.

kragar00 said:
I have a strange problem and I haven't been able to find a resolution online. I'm hoping someone smarter than me can offer a solution.
I have an AT&T LG G3 (LG-D850). When I got it, it had stock KK. I rooted it with Bump and everything was cool. I stayed with stock.
Last night I upgraded it to Lollipop using the stock, bump'd LG-D850 20F Lollipop 5.0.1 ROM from autoprime. I didn't run into any problems with the install. The phone appeared to be working fine.
However, today I'm having trouble with the internal storage. When I try to download a file from the internet, it's failing. In the stock browser, it just fails. Downloads says "<Unknown> Failed." In Firefox, it tells me "Cannot download file because SD card is in use." In Chrome, it tells me "No SD card."
I'm also not able to move files to or from internal storage. I can cut, copy, and paste files from one folder on my external card to another on my external. However, I can't cut, copy, or paste files from one folder in my internal storage to another folder in my internal or external storage. I've tried both the stock file explorer as well as FX.
I tried the SDFix app from NewApp on the off chance that it would help (I read somewhere it would also work on L), but it had no effect.
I can still download apps from the Play store and install them. However, if I create a new file in QuickOffice, I can't save it ("Failed to save document.") I can navigate to root and copy/cut/paste files from the data/app folder to my external card and other folders. I think the issue is the system/sdcard folder. The owner/group on the folder is root and read, write, and exec are all checked.
Does anyone know what the permissions on that folder should be? Or if that's really my problem at all?
Thanks.
Click to expand...
Click to collapse
set up adb then typ this commands
Code:
adb shell
su
restorecon -v -R /data/media

@suljo94 Awesome! That fixed it! :good:
Googleing restorecon brought up a whole bunch of hits about this problem along with this solution. Too bad I couldn't find the answer unless I already knew the answer

this should be added to the autoprime thread or on the q&a for all variants.

Is there anyway to fix internal sdcard? i get bricket on a F460K and cant install .zip files in recovery philz, when i choose zip from/sdcard resolves "Couldn't open directory" and "ni files found" but i can put files in "sdcard" via adb =/, anyone know a way to fix it?. thanks!.

@bolillo It's in the main thread now, first post. It looks like it was added on 3/19.

kragar00 said:
@bolillo It's in the main thread now, first post. It looks like it was added on 3/19.
Click to expand...
Click to collapse
Ooooo well sorry jajaja first thing that popped up in google was this lol
Sent from my LG-D850 using XDA Free mobile app

@mafury did you try the solution @Sulijo94 posted? That fixed my problem.
Can you install via adb?

kragar00 said:
@mafury did you try the solution @Sulijo94 posted? That fixed my problem.
Can you install via adb?
Click to expand...
Click to collapse
Can't run this command on adb shell =(.

mafury said:
Can't run this command on adb shell =(.
Click to expand...
Click to collapse
Did you try from a terminal emulator on phone?
Sent from my LG-D850 using XDA Free mobile app

No, the phone bricked, i recover delete all user data and use kdz with LG Flash tools2014.

I'm failing at this error
suljo94 said:
set up adb then typ this commands
Code:
adb shell
su
restorecon -v -R /data/media
Click to expand...
Click to collapse
I get this error. Please can somebody help?

tauseefalik said:
I get this error. Please can somebody help?
Click to expand...
Click to collapse
format your internal sd (you will lose everything not on externl sd card,apps data)

suljo94 said:
format your internal sd (you will lose everything not on externl sd card,apps data)
Click to expand...
Click to collapse
I tried using this command instead an it worked for me.
"adb shell
su
restorecon -FR /data/media/0"
P.S i'm using no SD Card

Would this work for media (ie. mp3)?
I can't seem to find a fix.. All my music doesn't show in any music app and can't find a solution.. Already checked for .nomedia files, cleared media storage and forced a rescan for media and and formatted internal and external SD cards... No luck.
Thanks
Sent from my LG-D852 using XDA Free mobile app

Very good!!!
suljo94 said:
set up adb then typ this commands
Code:
adb shell
su
restorecon -v -R /data/media
Click to expand...
Click to collapse
Fantastic!! I had the same problem with my LG G3 D850. I installed the stock rom from the TWRP recovery and was with this same problem. After performing this process my problem was solved !! But the pictures of the Camera application are not saved in the internal memory. What should I do to fix this??

kragar00 said:
I have a strange problem and I haven't been able to find a resolution online. I'm hoping someone smarter than me can offer a solution.
I have an AT&T LG G3 (LG-D850). When I got it, it had stock KK. I rooted it with Bump and everything was cool. I stayed with stock.
Last night I upgraded it to Lollipop using the stock, bump'd LG-D850 20F Lollipop 5.0.1 ROM from autoprime. I didn't run into any problems with the install. The phone appeared to be working fine.
However, today I'm having trouble with the internal storage. When I try to download a file from the internet, it's failing. In the stock browser, it just fails. Downloads says "<Unknown> Failed." In Firefox, it tells me "Cannot download file because SD card is in use." In Chrome, it tells me "No SD card."
I'm also not able to move files to or from internal storage. I can cut, copy, and paste files from one folder on my external card to another on my external. However, I can't cut, copy, or paste files from one folder in my internal storage to another folder in my internal or external storage. I've tried both the stock file explorer as well as FX.
I tried the SDFix app from NewApp on the off chance that it would help (I read somewhere it would also work on L), but it had no effect.
I can still download apps from the Play store and install them. However, if I create a new file in QuickOffice, I can't save it ("Failed to save document.") I can navigate to root and copy/cut/paste files from the data/app folder to my external card and other folders. I think the issue is the system/sdcard folder. The owner/group on the folder is root and read, write, and exec are all checked.
Does anyone know what the permissions on that folder should be? Or if that's really my problem at all?
Thanks.
Click to expand...
Click to collapse
Not working. I connected my phone,they can't find it in when i type adb devices. + can't download anything from internet,only from google play.

P760x said:
Not working. I connected my phone,they can't find it in when i type adb devices. + can't download anything from internet,only from google play.
Click to expand...
Click to collapse
@P760x when you type adb devices, what do you get? If it doesn't list any devices you probably need to reinstall the phone drivers on your computer. If it does list your phone, then there's something else wrong.

kragar00 said:
@P760x when you type adb devices, what do you get? If it doesn't list any devices you probably need to reinstall the phone drivers on your computer. If it does list your phone, then there's something else wrong.
Click to expand...
Click to collapse
(i'm getting nothing)That's the whole point. My pc searches and founds my device. It perfectly worked on 4.1x JB, it founds instantly.
For some reason,when i connect my phone into mtp (Files transfer to pc) mode my pc can't find any items in phone,so does extraction applications in my phone,it's just all empty, even though i have gApps,custom kdz.
I tried with terminal emulator (android version) - it says permission denied,so i think that requires root? I would get instantly but i can't transfer or download anything to my phone...?

P760x said:
(i'm getting nothing)That's the whole point. My pc searches and founds my device. It perfectly worked on 4.1x JB, it founds instantly.
For some reason,when i connect my phone into mtp (Files transfer to pc) mode my pc can't find any items in phone,so does extraction applications in my phone,it's just all empty, even though i have gApps,custom kdz.
I tried with terminal emulator (android version) - it says permission denied,so i think that requires root? I would get instantly but i can't transfer or download anything to my phone...?
Click to expand...
Click to collapse
@P760x I noticed that I can't connect my phone in MTP mode unless developer options are on and USB debugging is on. I didn't have that problem on KK, only Lollipop.
If adb devices still doesn't list your phone after that, manually download and reinstall the phone drivers from LG. I've had multiple occasions when Windows eats those drivers, so that's the first place to start.
Hopefully that helps.

Unable to delete files or folders from External HD

I had been using the mount USB to data script successfully until I think something got corrupted and I could not boot. I imaged the HD to save as much as I could, put the image on another drive, formatted the original drive and copied the files from image over using a Linux Live CD. FFWD to last night I realized that my Vice City game failed everytime I tried to save. I uninstalled the game but the folder still persisted in the Android/Data folder. I tried to delete the folder with ES file explorer, Root Browser and AirDroid but they all fail. I checked permissions and they look fine and any file or folder I have created after the crash can be deleted, renamed etc but I can not delete or rename any of the files I transfered with the Linux Live CD. Anybody have any ideas? It seems almost like a owner permission thing but the files I'm looking at have root as the owner.
Thanks
Dave

So I fixed this by using sudo dbus-launch nautilus command and changing all permissions to root and read write

Can't move some files, can't create some folders

I don't know how else to describe this issue I'm having:
Essentially sometimes I cannot create new folders, either in an explorer app (ES File Manager, Explorer (free, not Root Explorer), or other file manager) or when connected to my computers via USB. Sometimes I can do both. Similarly, sometimes I cannot move files from one directory to another, both using file manager or when connected to computer over USB. It seems random, I think?
An example of this is I downloaded a PDF file from SharePoint using Chrome. The file is downloaded to the /Downloads directory by default. I wanted to move this to a different directory (/Documents), but the cut+paste operation failed. ES File Manager says the operation can't be completed, Explorer just sits there and doesn't say anything. When trying to do the same thing over USB connection, Windows just sits there saying the device is busy, and it'll sit there indefinitely. But an OGG file I downloaded from Dropbox was free to be moved to and from several directories when I was testing file operations.
Basically it's like my device doesn't want to play nice with files and folders. I tried doing a factory reset, but that didn't seem to help. Do you think completely reformatting the phone (as in fastboot format userdata, and a fresh ROM + kernel install) would help? It seems drastic, but at the same time being unable to move files and folders is very strange and likely hard to pinpoint the culprit.
I'm rooted (using traditional SuperSU root) running Pure Nexus 12/01/2015 ROM and ElementalX 0.07 kernel (Enforcing disabled). I doubt any of those 3 factors are the cause of it, but every detail might help, right?
Update: It looks like a permissions issue. Please see post below.

OK an update to this, I discovered that some folders that I thought I had deleted using ES File Manager are still showing up in USB storage when I'm hooked up to a computer. That is to say that what I see using a file manager versus what I see while connected to a computer are different.
Further to this, I am now getting "Permission denied" by the file managers when I try to copy and paste anything from anywhere to any other place. I have booted into TWRP to run Fix Permissions already. It looks like everything now has rwxrwx---, which means to me 770? It should be 775, no?
Any ideas what might be causing this permissions issue?

daver68 said:
OK an update to this, I discovered that some folders that I thought I had deleted using ES File Manager are still showing up in USB storage when I'm hooked up to a computer. That is to say that what I see using a file manager versus what I see while connected to a computer are different.
Click to expand...
Click to collapse
For this, I read somewhere that the latest ES File app has a recycling bin for when you delete apps. So, that needs to be emptied too.
Sent from my Nexus 5X using Tapatalk

SlimSnoopOS said:
For this, I read somewhere that the latest ES File app has a recycling bin for when you delete apps. So, that needs to be emptied too.
Sent from my Nexus 5X using Tapatalk
Click to expand...
Click to collapse
I did indeed clean out the Recycle Bin (and subsequently disabled it), but the problem persists. But thanks for pointing that out!

OK, an interesting discovery:
If I am on my device and using ES File Explorer and if I am in the path /storage/emulated/0/* then I am unable to copy/move files and directories, as I've described above.
If I am on my device and using ES File Explorer and if I am in the path /sdcard/* then I am unable to copy/move files and directories, as I've described above.
If I am on my device and using ES File Explorer and if I am in the path /data/media/0/* then I am able to do anything I damn well please.
Now this makes a bit of sense to me, given the permissions for each directory. For example, when viewing the permissions of a file or folder when in /sdcard or /storage/emulated/0, I can only see the permissions as "Readable: Yes, Writeable: Yes", but I cannot change said permissions. However, when I view the permissions for something when under /data/media/0 then not only can I see the explicit permissions "rw-rw-r--" I can also change it if I wanted to.
I suspect this might be more than just the ROM. Perhaps I did not flash the system.img correctly when I first went through the process? Is this possible?