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Questions tagged [partitions]

A partition is a division of either your internal storage or your sdcard.

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What is a vbmeta partition?

One of the optional steps of the Magisk installation steps says, (Optional) If your device has a separate vbmeta partition, you can patch the vbmeta partition with command: fastboot flash vbmeta --...
Evan Carroll's user avatar
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7 votes
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10k views

Purpose of the "persist" partition

There are a lot of posts on the internet on how to fix or restore, but not many about what it is for or what is stored on it. What gets stored on it? Does the SIM unlock code go there? Or are values ...
Melab's user avatar
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4 votes
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Do I need a 'vbmeta' partition to install GSI?

Following the official GSI installation instructions from Google, they say to run fastboot --disable-verification flash vbmeta vbmeta.img. When I run that, I get the following message: Rewriting ...
Zachary Vance's user avatar
4 votes
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3k views

Repartitioning Nexus 7 2012 (grouper) parted unrecognized disk label

I need to repartition my 2012 Nexus 7 (grouper) to create a bigger system partition so that I can install Lineage OS. Here is the current partition table. Unfortunately parted can't print the ...
Richard Barraclough's user avatar
3 votes
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686 views

Which partitions to back up for a "complete" backup?

I have a Galaxy S10e running crDroid 13. I don't have TWRP on it (since it had to be installed from the custom LineageOS recovery), but https://stackoverflow.com/questions/29442630/copy-full-disk-...
EM0's user avatar
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How to access all partitions of a USB drive OR how to choose which partition is displayed in file manager?

I'm on a OnePlus 8T on Android 13, and I've recently purchased a fingerprint encrypted USB. The way the USB works, is it has a Public and a Secure partition. When you insert the USB, only the Public ...
CodingCactus's user avatar
3 votes
0 answers
814 views

hard factory reset when partitions are messed up

I have a Google Nexus 7 (2012) which for no apparent reason entered an endless reboot loop. Trying to fix it with a fresh install of the OS via TWRP, I unintentionally messed up the partition table. ...
Antonio's user avatar
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How does SIM unlocking work under the hood?

I know what SIM unlocking is and how to do it, but my question is how does SIM unlocking work under the hood? What is actually going on that prevents me from just popping another carriers SIM in there?...
SIMpleDDD_33's user avatar
3 votes
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148 views

When and how is /data mounted?

I am exploring a bit on my Android device and I can't seem to figure out when /data is mounted. My first guess what it'd be in /init.rc, and while that file creates the /data directory, it doesn't ...
Jeroen's user avatar
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2 votes
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166 views

Can't read media files from mounted SD card partition

I have a tablet that I flashed with a modded (rooted) system partition. A side effect of this system partition is that it killed my 20gb SD card partition that is the main storage for the device. I ...
silencedogood's user avatar
2 votes
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822 views

How to increase recovery partition size?

I'm totally lost right now. I want to flash TWRP 3.7 on my Galaxy S7 herolte. However, it won't work because the recovery partition is only 46MB. So I wanted to increase the size - a process I've done ...
obeN's user avatar
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Resize /data on stock recovery

I'm on the BL6000Pro (with Magisk) which has no custom recovery (like TWRP) that I know of. I run CAOS11 on it but the /system partition is already full while the /data partition is huge and empty. I'...
Nicholas Brandt's user avatar
2 votes
0 answers
412 views

What is Dynamic system update

Is seamless update(a/b partition) same as dynamic system update Or Can I use DSU in A only devices & how do I know if my device supports dsu updates. I have lineageos 18.1
Vivek Singh's user avatar
2 votes
0 answers
1k views

How to mount MTP like a drive in /dev?

I am trying to recover some files on my android device, but without success. So I would like to try tools like photorec, but they need a physically mounted device. Or rather, for the moment photorec ...
Teo7's user avatar
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56 views

Implementing Dynamic Partitions instead AB systems

Is there an easy way to implement dynamic partitions for the oneplus 7 or any other phone built in with AB partitions system I want to support super.img to be able to test CGI images without the need ...
Mohamed A'esam's user avatar
2 votes
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990 views

Looking for a tool that can execute Dynamic Partitions operations

For managing dynamic partitions, there are a number of operations such as resize, remove, add_group ... When flashing a Rom, these commands are listed in dynamic_partitions_op_list file (with Rom file)...
wiki's user avatar
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Resize /system partition on Galaxy note 3 SM-N9005

I am trying to resize the partition /system using the parted and gdisk commands. But none of these commands succeed in changing mmcblk0 partitions after execution. The things I do are as follows: ...
Armin Absalan's user avatar
2 votes
0 answers
668 views

Is there a super partition on Pixel 3/3XL with Android 10 (or greater) loaded?

Question: Does a production Pixel 3/3XL have a super partition when loaded with Android 10 or greater? Background: I changed out the UFS piece on a Pixel 3XL and loaded the newest Android 10 and 11 ...
John Herwig's user avatar
2 votes
0 answers
78 views

mounting an app folder to external storage fails for Write access on Android Q but will work in Android Pie

I could mount my partitions holding whatsapp (exFat) and titanium ( ext4 ) backup data on android Pie but right now on Q it will not let a RW operation be performed after mounting I understand /...
Jason Reeves's user avatar
2 votes
0 answers
945 views

EXT4 Mount gives this error "SELinux: mount invalid. Same superblock, different security settings"

I am trying to mount a second partition (ext4 ) for my apps ( I guess its a bit outdated with adoptable storage but then ext4 isn't accepted FS for adoption for external card ) . I am on 9.0 ( Pie ) ...
user1874594's user avatar
2 votes
0 answers
165 views

Micro sd card partition strategy for Android (context of wear leveling & data corruption)?

The primary issue relates to bad blocks / clusters and it happens to be android platform. This is a Sandisk 128gb (leave this link - it is not an ad). Some cards indicates other problems like memory ...
user1874594's user avatar
2 votes
1 answer
19k views

TWRP: Failed to mount '/preload' (Invalid argument)

With TWRP, on almost every operation I get Failed to mount '/preload' (Invalid argument) My device currently can not boot, and this may have something to do with it, /preload is currently in /etc/...
Evan Carroll's user avatar
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2 votes
1 answer
3k views

Canot enter TWRP recovery because of "fastboot erase userdata"

I want to flash a new ROM for my Android phone. I clean data by fastboot erase userdata but after that, I can not enter TWRP recovery because can not mount /data I tried fastboot format userdata ...
BaiJiFeiLong's user avatar
2 votes
0 answers
4k views

Erase external SD card via adb

Is it possible to perform "Erase external SD card" action via adb? To be clear, my goal isn't to manually call partitioning/formatting tools such as newfs_msdos from command line. I want to get ...
Thunderbeef's user avatar
2 votes
0 answers
188 views

Where are the PRL and profile stored on the filesystem?

I'm talking about what can be updated in Settings->More->Cellular networks->Carrier settings. Where are they stored? On what partition and where, if anywhere, on the filesystem?
Benjily3's user avatar
2 votes
2 answers
2k views

Resizing /System Partition on Galaxy S2

I am trying to resize my /system partition on my Galaxy S2 and as soon as I partition /system using various sizes I lose all of the mobile data connectivity & IEMI number is invalid (missing) ...
Ryflex's user avatar
  • 121
2 votes
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971 views

Resize /system partition of Zenfone 5

I want to change my /system partition on my Zenfone 5. Its size is only 1259 MB. Today I installed Resurrection Remix ROM so there is only 195MB free space on /system partition. System can't properly ...
George Burduli's user avatar
2 votes
0 answers
1k views

Format android to join internal memory partitions?

I have searched around the net but not really finding exact problems nor solution related to mine. I have a tablet which should have 8gb of internal memory but the problem is that it have divided ...
lonerunner's user avatar
2 votes
0 answers
57 views

AParted partion re-do?

Can I re-size or adjust the size of the partitions that I made? Or do I need to just start over from scratch? I went through the process correctly several months back and now I would like to adjust ...
David's user avatar
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951 views

Messed up my partition table on nexus 7

OK some background here. I was running CM 11 nightly on Nexus 7 (2013) and had encrypted my device. Today i decided to flash my device to CM12 and hence went into recovery. When I tried to do a clean ...
user3574816's user avatar
2 votes
0 answers
2k views

Problem with Partitioned Internal SD card! I can't get full size back!

I have a Android Matricom G-Tab Quantum Tablet with 1 GB of internal memory (tablet and system Space) and a 16 GB internal storage. I was running out of space in the 1 GB memory and since Android ...
Michael Velasquez's user avatar
2 votes
0 answers
105 views

How to permamently change partition attributes?

I've a rooted phone. I want /system partition to be rw on every boot. Partition's attribues are defined in /fstab.<model_name> file. It seems that this file gets restored to the original version ...
kpax's user avatar
  • 21
2 votes
1 answer
825 views

Losing partition on sd card

I have a 2GB sd card that I have partitioned with minitool partition wizard, Easus partition master and Gparted. Each time I create a 1.5GB fat16 partition set as primary and a 370MB ext2 partition ...
Steve's user avatar
  • 21
2 votes
0 answers
6k views

Internal hard disk partitions (sda2) not showing in android system

I have a x86 system (Asus Eee Pc)having hard disk of 232 GB, in which 4 GB allocated for Android and rest I don't know where it is gone. If I open super user and running this command in android ...
i_max 77's user avatar
2 votes
0 answers
2k views

Remount writable by all users?

I want to remount a read-only partition in read-write mode, but I want it to be writable for all users. So far I've got this: mount -o bind /someplace /someplace_else mount -o remount rw /...
Janitor's user avatar
  • 21
2 votes
1 answer
4k views

Can't mount /data, /cache, and /sdcard

I have a Xiaomi Redmi 2, (device ID is 2014813) and there is a serious problem going on with it. This morning I saw a message from the phone, saying that the full encryption was unsuccessful, and ...
whoknows's user avatar
1 vote
0 answers
57 views

Using Parted, Gdisk, fdisk or other tools to re-format an Android device

I have a Lenovo Yoga tablet 2 Android version which uses an Intel chip. I have managed to install TWRP on the device. I need to use a tool in the TWRP command line environment to resize the partitions ...
Nick P's user avatar
  • 11
1 vote
1 answer
90 views

Why is there a userdata partition in my /dev/block/mapper/ (which seems to mean that userdata is a dynamic partition)?

https://source.android.com/docs/core/ota/dynamic_partitions/implement The supported dynamic partitions are: System Vendor Product System Ext ODM Note: Avoid placing userdata or any other permanent ...
hrdom's user avatar
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1 vote
0 answers
266 views

Mkbootimg: Repacking Android recovery produce corrupted image

I want to replace the kernel inside twrp 12.1 recovery with my kernel that I built. Now with only unpacking and repacking the recovery image I end up with an image of different size The recovery image ...
amera's user avatar
  • 21
1 vote
1 answer
293 views

How to mount a partition on an Android device that can be read by USB on a computer when plugged in

I have a tablet that I'm doing some hacky work on. This tablet comes from the factory with a small storage partition called USERDATA, that's about 5gb. It also comes with a large storage partition ...
silencedogood's user avatar
1 vote
0 answers
301 views

I want to edit lk.img to support fastboot binaries

based on what i found Oppo removed the fastboot binaries from my phone (Oppo A5s) and since the lk partition is the one that have it by default i would like to know how can i sort of inject the ...
user avatar
1 vote
0 answers
128 views

Is there a way to mount YAFFS partition?

I'm trying to recover data (contacts mostly) from an old phone (Xperia Neo V) that was running Android 2.3.4 and so far I managed to dd the data partition via adb. The partition is YAFFS one. I would ...
monsune's user avatar
  • 111
1 vote
0 answers
174 views

obtain partition size without root access

On my device, I can obtain a list of existing partitions by executing ls -al /dev/block/bootdevice/by-name via ADB. But I found no way to obtain the size of each partition without root powers: cat /...
Izzy's user avatar
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1 vote
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749 views

lpmake complaining about not having enough space

I am trying, following this tutorial, to re-package a super.img file, but am confused by lpmake. I am trying to package the following 3 images: partition size lineage-18.1-20220511-UNOFFICIAL-...
Clément's user avatar
  • 181
1 vote
0 answers
22 views

Some music metadata/tags dissapeared after copying to micro sd

I tried copying my large music library from my internal storage to my external micro sd card, only to find 50% of my album art went missing, some artist and album info is gone, while the songs ...
FirePower's user avatar
1 vote
0 answers
644 views

Using a Partitioned drive on an Android TV

I've got a partitioned drive - A USB drive, where i've got 2 of the partitions formatted ext3, one of the partitions as a FAT32, and the last one as FAT12. I wanted to access the FAT32 partition using ...
Saaransh Garg's user avatar
1 vote
0 answers
268 views

How should I partition my android device? Should I use gpt or msdos?

so I got myself into a really bad situation and I need to re-partition my device. I already pushed parted and mkfs to /sbin (following this guide) and made them executable with chmod 777, i just need ...
nuudul's user avatar
  • 11
1 vote
0 answers
74 views

according to following a post i tried to change system partition size ,now my storage is unuseable what should i do?

my cmd gone wrong here i tried three times but failed(every time same problem) now os is working in system folder but storage is not showing is there any solution?
Noman Shahid's user avatar
1 vote
0 answers
41 views

How to mount external µSD card partition filesystems on Moto g Power?

A µSD card has several partitions, but the phone mounts only the vfat partition, not the ext4 partitions. I see that there are existing internal ext4 filesystems, so it can handle that type. Is there ...
Ray Butterworth's user avatar
1 vote
0 answers
159 views

flash boot.img to use the kernel

why to flash a kernel i need a zipper anykernel 3? i can't flash directly the boot.img of a rom, example (PixelExperience) to have oniichan kernel on (LineageOS)? i'm absolutely new in the world of ...
CadettoEx's user avatar