unmount 4.4.2 - General Questions and Answers

Hello!
How to unmount an old android 4.4.2 data partition?
Update: phone model if that makes any difference is Sony Xperia E1 dual
Not sure where to put this question, so I guess a general??
I have no knowledge of linux, android. But I got a programming background on windows systems and web.
I want to unmount an old android 4.4.2 data partition to run file system check because after deleting some files in data directory I am unable to write anything.
Could anyone please help me to get an idea how to do this? I searched the threads but they are more about flashing, TWRP and so on. Would not a simple file system check be enough in this case? As I noticed possibly it might be some sort of inode error? So checkdisk or something should fix it, shouldn't it?
I tried clearing the cache, it helped, but after few hours could not write anything again.
Now even the cache cleaning does not help.
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It's always a good idea to set filepointer to begin of filesystem if you mount / unmount a partition: doing so you'll never run into error "Device or resource busy"

xXx yYy said:
It's always a good idea to set filepointer to begin of filesystem if you mount / unmount a partition: doing so you'll never run into error "Device or resource busy"
Click to expand...
Click to collapse
thanks for the tip!
However, I am a noob in linux/android, and the mount was done by android or KINGO rooter. So should I something like restart in recovery mode? Update:
Code:
adb reboot recovery
-> just rebooted to the regular interface
Update: phone is Sony Xperia E1 dual
I thought fixing a disk would be something like very basic task, like one liner or one parameter I did not add...
The mounting is just a way how I think I might solve the problem. That might be absolutely wrong way, not sure, now trying to move in the darkness by intuition only ...
Main problem: can not write anything with free space avaliable. Appeared since I deleted some files from /data using adb and rm command.
I also tried all the devices, but none of them was checked with two types of error:

Related

[Q] Cannot delete folder in data/data

I downloaded Quadrant on my HTC One to Benchmark it and then I uninstalled it however when I rebooted my phone I got a UID inconsistency error and I discovered it was this app so I had to manually delete the .apk to resolve it because for some reason it was still lingering anyway the folder for it is still in my Data/Data directory and no matter what I try I'm unable to delete it. I've used Root Explorer and Ftp'd in but no luck yet. Any suggestions are appreciated!!
Hello Sir
Chronos300 said:
I downloaded Quadrant on my HTC One to Benchmark it and then I uninstalled it however when I rebooted my phone I got a UID inconsistency error and I discovered it was this app so I had to manually delete the .apk to resolve it because for some reason it was still lingering anyway the folder for it is still in my Data/Data directory and no matter what I try I'm unable to delete it. I've used Root Explorer and Ftp'd in but no luck yet. Any suggestions are appreciated!!
Click to expand...
Click to collapse
Just make sure you have tap on "Mount as R/W" in Root Explorer
it is mounted a R/W
I just had exactly the same **** happen to me with quadrant. I resolved the uid issues by format cache partition and deleted the apk but that folder in data is not deleteable.
Can't install quadrant either as it says error 24. Well I have no idea what's wrong and also the free space for the folder in data matches the stats for the asec data folder. Weird !
I would put my trust in the original linux/unix command line utilities. I can recommend "Terminal IDE" as a package of a terminal emulator and a base system. Just start it, install the "system", then go to the command line. With
Code:
su
you should get root rights. And with
Code:
rm -r /path/to/whatever
you should either be able to delete it or get a more or less meaningful error message.
@ccxxx i followed your method but remained unable to delete the facebook folder...
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I have also tried using root explorer...
Any suggestions??
Sent from my GT-N7100 using Tapatalk
Well, I/o error is bad. It usually means that the memory is physically broken but I think it can also be caused when the filesystem is corrupted.
I renamed the folder instead of deleting it and everything worked perfectly... does this still mean the memory is corrupted?
Sent from my GT-N7100 using Tapatalk

[Q] Strangely bricked phone

Hello to everyone.
I have phone LG g pro 2 D838 made in Korea, that has strange symptoms. When it boots, appear screen with keyboard and input box with text ''Enter PIN/password to decrypt 30/30 attempts remaining". After I entered some code, it shows "29/30 attempts remaining, and no matter how many times wrong code is entered, still remains 29/30. Download mode working, and I try to flash latest stock rom 10f, but nothing happened. Then I try stock roms 10a, 10b and 10d, but still nothing. Next to the download mode, I have a recovery mode, in which there is no menu. In this mode, it is possible to access phone with ADB, but everything is read only, and system is not mounted. I can list folder contents, but I can't push or pull, and when i try to use shell, I get a message " -exec '/system/bin/sh' failed: No such file or directory", because system partition is not mounted. ADB Remount generate error " remount failed: Success ". I forgot to mention that every time when i try to flash stock rom, in box on phone display was written, in red letters, 'ROOTED'. I guess that unroot is not succeeded . Also suppose that possible solution is to flash some custom rom with recovery, but i can do that only if I have it in KDZ format. Does anyone know how to make a custom rom in KDZ format, or someone already has it? Does anyone know some other solution?
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Thanks in advance
From what it looks like, you've encrypted your phone. That explains the password on startup and the unmounted system.
If you don't know your encryption password, you have a bit of a problem on your hands.
From what I know, there's no way to hack into or change your phone when it's encrypted.
Turtle_Cookies said:
From what it looks like, you've encrypted your phone. That explains the password on startup and the unmounted system.
If you don't know your encryption password, you have a bit of a problem on your hands.
From what I know, there's no way to hack into or change your phone when it's encrypted.
Click to expand...
Click to collapse
In first, thank you on reply ,Turtle_Cookies.
If the phone is encrypted, it should be possible to reset it to factory settings. The user data is encrypted, so it would delete them and set to the default settings, and that should recover the phone. On the other hand, I can access to certain directories by ADB (like etc,sys), but can't change it. Am I right?
Same Issue
Did you found solution to this?

unable to flash anything in TWRP, SD card wont mount or show contents

Hi!
I picked up a Mate 8 from a local service provider and would love to flash a new ROM to get rid of the ugly stock one, but I am stuck when trying to flash anything from TWRP.
The phone boots fine, I unlocked the bootloader, and has TWRP Mate 8 version...I can't locate any files from the internal storage though. I understand this is due to the system being encrypted. I cant seem to get around that though. I tried the format data option, hit yes, then go back but that obviously has deleted what I had stored (the SU zip). I can't mount the SD either afterwards, to load it in recovery.
I tried using the Italian knife tool, and used the Root option, and option 3, but get an error: error: cannot load '.\rec\boot.img
I am not a pro on this so it might be something farely stupid. I would love if anyone could help me with this...
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--------------------------------
Edit:
I was able to solve myself. It was a rookie mistake. Perhaps the internal storage is encrypted, however I was able to flash SU using TWRP by inserting an external SD, which I had not done before. I was able to view contents from that location and did not need to use the Italian knife tool.
Hi there I am using iBall KitKat mobile is rooted but i am unable delete system apps and can't use link2sd showing error mount structure needs cleaning can anyone help
aceslivelong said:
Hi there I am using iBall KitKat mobile is rooted but i am unable delete system apps and can't use link2sd showing error mount structure needs cleaning can anyone help
Click to expand...
Click to collapse
Are you using SuperSU ??
To delete system apps, download system app uninstaller from play store and grand it superuser permission.

Recovery issue - Stock on boot-loop after patriation changes

Hi,
I tried to Root my POC F2 Pro device today, and I got stuck on boot-loop.
After installing TWRP I didn't manage to find the files in the internal storage (Something to do with storage encryption.) so I saw some videos and Change the partition to exFAT and then to EXT4 and from that moment everything went to hell.
I can't do anything and the device is not botting up. When I try do to anything like installing and new Global room/Wipe/Repair - I get this:
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I saw several posts about it, but nothing works for me. like:
- https://forum.xda-developers.com/t/cant-mount-system-vendor-odm.4143981/
I will appreciate any help that I can get
Thanks,
Aviran
AviranBhahar said:
Hi,
I tried to Root my POC F2 Pro device today, and I got stuck on boot-loop.
After installing TWRP I didn't manage to find the files in the internal storage (Something to do with storage encryption.) so I saw some videos and Change the partition to exFAT and then to EXT4 and from that moment everything went to hell.
I can't do anything and the device is not botting up. When I try do to anything like installing and new Global room/Wipe/Repair - I get this:
View attachment 5421729
I saw several posts about it, but nothing works for me. like:
- https://forum.xda-developers.com/t/cant-mount-system-vendor-odm.4143981/
I will appreciate any help that I can get
Thanks,
Aviran
Click to expand...
Click to collapse
Can you enter in fasboot mode?
If yes https://forum.xda-developers.com/t/guide-use-xiaomi-flash-tool.4262425/
DAAMMM WOW man...! I searched for a solution all night and didn't find anything no matter how hard I tried.
In one comment you fixed everything! Really (really) appreciated!
Thanks again!
@NOSS8 Maybe you can help me root my phone...?
After I installed the TWRP, I enter recovery mode and I see 0MB in the 'Internal Storage'.
I have PIN to the phone, but it's not asking me to write it down when I boot to recovery.
What can I do?
AviranBhahar said:
@NOSS8 Maybe you can help me root my phone...?
After I installed the TWRP, I enter recovery mode and I see 0MB in the 'Internal Storage'.
I have PIN to the phone, but it's not asking me to write it down when I boot to recovery.
What can I do?
Click to expand...
Click to collapse
Which Twrp did you use?
Which rom?
NOSS8 said:
Which Twrp did you use?
Which rom?
Click to expand...
Click to collapse
I manage to do it. I created a new boot image using Magisk and it worked.
Thanks again for the quick reply!

copy of big files from pc to microsd return "Error trimming file" message error

Hi, I have a problem that I don't know how to solve: when I try to get files bigger than 125 MB teracopy show "Error trimming file" error message.
The transfer is made with teracopy from a windows 7 pc and landrive app ( https://play.google.com/store/apps/details?id=fr.webrox.landrive&hl=it&pli=1 ) on android.
I don't think that it's bug of teracopy or landrive, because it's happen only with files bigger than 125 mb and not with small files. For this issue I have written a question here ( https://forum.xda-developers.com/t/...ing-kernel-and-compile.4547375/#post-88123973 ) in particularly the part related to ext4 filesystem but nobody has answer me .
How can I solve this issue ?
You can see error in the following screen
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Update : I have scanned microsd with hdtune and all sector are ok (green)... there is a bug? Problem occur with galaxy S9 snapdragon both with Android 9 and Android 10
For the Multimedia Card and the SD card it is the ERASE command, which performs a non-deterministic TRIM operation. Non-deterministic TRIM means that after an ERASE command a new read of the respective block number ( cf. Logical Block Addressing, LBA for short ) returns undetermined data. This can be data from other blocks and also different data for each read attempt.
Why is called ERASE command if I'm making a copy to microsd? How can solve this issue? What is the cause?
Ask developer of the app you used this question.
so You think that is a problem related to teracopy and not to android?
It in no case is Android OS related: it happened PC side!
I'm pretty sure the error occured because you didn't perform a Copy but a Move.
If you would do a Google search for "Tera Copy Pro error trimming file" you probably can get the reason why this error occurs.
no, I'm sure to have performed a copy and not a move... are You sure that isn't related to file system (and/or cluster dimension) ? Even because I have format microsd to windows and considering that it was of 128 gb, I can't use FAT32

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