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Questions tagged [partitions]

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

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35 votes
9 answers
184k views

How can I view the Android internal partition table?

I've rooted my device, put it in recovery mode, and have linked it to PC by adb shell. How can I view the list of storage devices and partitions? Note: fdisk doesn't work.
lovespring's user avatar
  • 1,195
23 votes
2 answers
35k views

SD card partitioning? why? how?

I am going to install cm7 and it seems to me that is 'good' to partition my SD card. I did some reading but I am not sure if ext partition will become accessible as mass storage when an Android phone ...
Radek's user avatar
  • 1,679
22 votes
4 answers
108k views

Resize /system partition of Galaxy S 2

I need to increase the size of my Galaxy S 2's /system partition from 503.4MB to... Well, anything possible. The (main) reason why I want to do this is because I want to install GApps 20140606, which ...
Bruno Finger's user avatar
17 votes
1 answer
22k views

Why is there no option to choose size in TWRP's resize partition feature?

I'm trying to reflash an old Galaxy Note N5100 but I realized that the system partition is too big (~1.5GB). The current ROM uses only about 40% of the partition so I want to shrink it to make space ...
phuclv's user avatar
  • 356
14 votes
1 answer
3k views

Why are superuser permissions needed to acess /data partition?

The default account is normal user, and I used it to install Google Play Store APK (to /data). Then Google Play Store was opened using my current user's permissions, and it is used to download and ...
Livy's user avatar
  • 253
12 votes
4 answers
25k views

How to list all major partitions with their labels?

I want to figure out all partitions on my device together with their resp. mount points or labels (i.e. to know which partition is holding system, recovery, boot, etc.). This needs to be device ...
Izzy's user avatar
  • 91.2k
11 votes
1 answer
26k views

Do most Android device use GPT as their partitioning scheme?

There is much talk of Android partitions that can be found with Google. Sometimes I can find references to GPT in documentation for mobile processors or on XDA Developers (where I have learned that ...
Melab's user avatar
  • 795
9 votes
2 answers
16k views

How to find the pathname of the swap partition on SD card?

As this warns, you should not enable swap on the wrong partition or you can destroy your phone: OK before we go any further! previous phones had a partition layout where mmcblck0 was the SDcard (...
endolith's user avatar
  • 3,045
9 votes
3 answers
81k views

Inconsistent UIDS and wiping a data partition

I've inherited my wife's Android phone (GT540) when she got a newer, shining one :-) We think to have factory reset it (via the privacy option), and in fact it has finally stopped to refer to her ...
Francesco's user avatar
  • 285
9 votes
3 answers
44k views

Resizing the /data partition (rooted)

My app market (Google Play) has a problem. I can't install any apps on my phone (Lenovo, rooted) because of "There isn't enough space in the disk", but actually there is. After asking a friend, I ...
Yagel's user avatar
  • 93
9 votes
3 answers
14k views

Do I need to wipe anything before restoring a full nandroid backup?

I'm used to wiping everything when installing a new ROM, but I would like to know if a nandroid restore automatically wipes out the partitions it is recovering. When I run a restore, I see some ...
Stephen S's user avatar
  • 5,407
9 votes
0 answers
11k views

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
  • 4,297
8 votes
3 answers
45k views

What is system partition? How its size is fixed? Can it be resized?

I have rooted LG P500 (Optimus One) running stock 2.3.3. I recently updated to unofficial CM10 (Android 4.1) and observed few serious issues. I observed that Google's My Location service was not ...
Narayanan's user avatar
  • 7,154
8 votes
2 answers
76k views

How to restore damaged Internal SD card partition layout? Tried everything

I have Samsung S 3 mini. I did something really bad to my INTERNAL SD CARD partition layout. As I remember correctly, I tried to repartition my External SD card via fdisk right on Android via 'adb ...
Aleksandr Motsjonov's user avatar
7 votes
1 answer
9k views

What special privileges "/system/xbin/su" does have w.r.t. root access?

This answer says: Because of the way directory/file permissions are configured on Android, you need to have the su binary on your /system partition in order for it to work. Putting elsewhere ...
Oren Milman's user avatar
7 votes
3 answers
7k views

Is my ext3 sd partitioning correct?

I've read a bit here on Android Enthusiasts and I've been able to partition my sdcard. A partition FAT32 and another one ext3, using the AmonRa Recovery for Acer Liquid Metal. Everything looks fine ...
Pitto's user avatar
  • 1,784
7 votes
0 answers
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
  • 795
6 votes
3 answers
96k views

How to restore my IMEI on Galaxy S if I don't have a backup of /efs?

I installed CyanogenMod 10 Nightlies on my Galaxy S1, coming from CyanogenMod 9. On every reboot I get the message: Warning! A problem was detected with your device. Your device IMEI number is ...
theodm's user avatar
  • 1,087
6 votes
4 answers
80k views

How to restore the IMEI number on the Samsung Galaxy S4 I9505? (IMEI=Unknown, Baseband=Unknown, Sim Card Not Detected)

Information: Hello, I lost my IMEI number on my Samsung Galaxy S4 GT-I9505 today and I would like to restore my original IMEI back to my phone. I still have my original IMEI of my phone written down. ...
Thomas Vos's user avatar
  • 3,990
6 votes
1 answer
2k views

SD card not recognized if I create second partition

I need to create a second partition on my SD card to use Link2SD to store apps on it, but every time I make a second partition the phone says there is no SD card at all. I've tried it a few times with ...
Celeritas's user avatar
  • 1,795
6 votes
3 answers
81k views

Repartitioning Internal Memory of Android Device

How can I repartition my device such that the storage for device internal usage (i.e application storage or internal memory) can be increased in lieu of decreasing the User available memory. ...
TSDCR's user avatar
  • 61
5 votes
4 answers
20k views

Use of swap size while partitioning?

I just rooted my phone (Android 2.3.6) and partitioned the sd card using CWM recovery. While partitioning, I noticed about swap size and while searching about it, different blogs (xda developers) ...
Sujan's user avatar
  • 363
5 votes
1 answer
4k views

Where is the baseband firmware stored and how does Android interact with it?

My searches on the web didn't provide suitable answers to these questions: 1) Where is the baseband firmware stored? My understanding is that this particular firmware is a RTOS built for the ...
Rand0mMan's user avatar
  • 355
5 votes
1 answer
3k views

Can I format SD to FAT32 from FAT16?

I saw that my SD card is FAT16 formatted. In order to improve performance, can I reformat it as FAT32? What filesystems does Android support for external storage?
Diogo's user avatar
  • 1,634
5 votes
2 answers
2k views

Apps missing after upgrading sd card

I have been searching for how to properly upgrade to new sdcard, and I did as this posts suggests. How to upgrade / swap SD card without losing data and installed apps?. But when inserting the new sd ...
Lucy Brennan's user avatar
5 votes
1 answer
9k views

How to resize the /data F2FS partition

Context: I wiped all the partitions from my Moto G device with the TWRP recovery and installed Cyanogen 13 on it. Then I had issues when enabling Encryption: the phone just restarts but does not ...
Marc.2377's user avatar
  • 494
5 votes
7 answers
38k views

Partitioned sdcard not working with link2sd

I have a 4GB SD card which is partitioned into 3GB and 1GB (Well it's not 1GB it's approx. 750 MB) (I used it through my phone 'cause i didn't have a reader and i used mini tool partition wizard) then ...
Mohamed Essam's user avatar
5 votes
1 answer
4k views

how to use ext partition in my android?

I partitioned my MicroSD card and created 1GB ext3 partition. What is the next step so I can use it to make the performance of my android better? It seems to me that it is mounted into /sd-ext What ...
Radek's user avatar
  • 1,679
5 votes
1 answer
38k views

Bricked my TF300T: How to re-partition internal storage to get it back?

I upgraded to Katkiss's Android 5.0 image. It was nice but in reading I saw I could use the F2FS file system to prevent slowdown from normal usage. So I went to format /data thinking that would give ...
Chip's user avatar
  • 181
5 votes
1 answer
5k views

How to switch sd cards when using a data2whatever (d2w) custom ROM?

I'm currently running MIUI XJ (Gingerbread 2.3.5) with d2w on my HTC Desire with the 4GB sd card it was shipped with, but as I found the joy of the occasional ROM-switch, I found myself running out of ...
Jemus42's user avatar
  • 243
5 votes
1 answer
1k views

Problems with partition table

I have a Prestigio 5044 Duo (PAP5044) with MTK6589. Basically, what I was trying to do was to resize /data partition, beacause it was only about 950Mb, by shrinking Internal SD card (/emmc) partition. ...
Eugene's user avatar
  • 153
4 votes
1 answer
6k views

Why do partitions get unmounted automatically after some time?

I have an Android phone running Oreo 8.1.0. I have two partitions in sdcard. One partition is ext4 formatted. I mount it using: mount -t ext4 -o rw /dev/block/mmcblk1p2 /data/sdext2 But after some ...
jonny789's user avatar
  • 365
4 votes
2 answers
8k views

"remount: not found" error

I want to install an application as a system application. To do so, I must remount the system partition RW, to do so I run the command adb shell remount rw in a terminal, but I get the error /system/...
abhishek kumar gupta's user avatar
4 votes
6 answers
9k views

Does the MTK preloader reside in the same flash as system or data?

I was just curious as I don't understand the MTK preloader that much. Considering if a wrong one is flashed, then you are left with unrecoverable brick (correct me if I'm wrong). So, it seemed odd to ...
AguThadeus's user avatar
4 votes
1 answer
385 views

Is my Android device booting into a "stealth" partition?

OK, this is a weird problem I’m encountering with an Android system I’ve been using without problems for several years now… and I’m practically out of ideas on how to potentially fix it. Let’s start ...
e-sushi's user avatar
  • 211
4 votes
1 answer
6k views

What is rootfs? Can I make persistent changes to my device's root filesystem?

When I open up a terminal emulator and run the mount command, it indicates that my Android device's root filesystem (/) is of filesystem type rootfs. What is rootfs? Can I write to it? Will my changes ...
unforgettableidSupportsMonica's user avatar
4 votes
2 answers
7k views

How to create and use multiple partitions on external SD card with different filesystems (Ext4, exFAT, NTFS)?

I want to create 4 partitions on external MicroSDcard through ADB shell commands, not on Windows or Linux. Also want to show all partitions in Android GUI (SETTINGS > STORAGE > SDCARD) and make them ...
Androidquery's user avatar
4 votes
2 answers
25k views

Link2SD error- "mount: Operation not supported on transparent endpoint"

So I just rooted my Concord II, and installed Link2SD. I partitioned my SD card with MiniTool, and made a Fat32 and a ext2, both primary. But when after opening Link2SD and giving it root access, it ...
Mikey S's user avatar
  • 41
4 votes
2 answers
75k views

FastBoot recovery failed: partition 'recovery' not support flash

My mobile is Lenovo S920 running official Android OS 4.4.2. I am trying to install cwm recovery through fastboot. I tried executing the command fastboot flash recovery recovery.img But I am ...
Guna Sekaran's user avatar
4 votes
2 answers
17k views

What are the /firmware and /efs partitions on Samsung devices

This is specifically the Galaxy s3. Out of curiosity what are these partitions exactly. Are they part of the android OS or something lower level than that? If I were to delete everything in these ...
user974896's user avatar
4 votes
2 answers
236 views

Questions about safety and reversibility of SD card partitioning.

In connection with my previous problem, I want to dedicate part of my memory card to the condition of the internal memory using the application Link2SD. I know that I should create a second partition "...
Bartosz Królak's user avatar
4 votes
1 answer
6k views

I/O errors opening files in data partition

I'm trying to repair a Moto G (XT1008, unlocked) device. When booting normally, the motorola splash finishes and the android desktop shows up for one second, then a bunch of pop ups show up informing ...
Diego Tiscareno's user avatar
4 votes
4 answers
18k views

How to see other partitions using the Terminal Emulator and mount them?

I just installed Android on my netbook and it caused it to not see Linux Mint on my machine and I'm assuming it removed it from the GRUB. Now the first problem is how do I see the contents of my ...
user15225's user avatar
4 votes
0 answers
5k views

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
0 answers
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
3 answers
4k views

How to restore an image of android partition from my linux PC

I created an image of my flash disk of my Nexus 4 as described in this question by doing # adb pull /dev/block/mmcblk0 mmcblk0.img The image is fully functional but I would like to push this image ...
hongo's user avatar
  • 171
3 votes
1 answer
1k views

How many mmcblk devices is normal?

Why so many mmcblk devices? /dev/block/mmcblk0 /dev/block/mmcblk0boot0 /dev/block/mmcblk0boot1 /dev/block/mmcblk0p1 /dev/block/mmcblk0p10 /dev/block/mmcblk0p11 /dev/block/mmcblk0p12 /dev/block/...
Evan Carroll's user avatar
  • 4,297
3 votes
2 answers
13k views

How to take full image backup of partitions or eMMC?

I have an Archos 55 Platinum here. There is also a unofficial TWRP, if this might help. I would like to make a backup of the storage of the phone, like dd for any partition, so I can inspect the ...
davidbaumann's user avatar
3 votes
1 answer
4k views

Please explain the android partition structure to me?

I've tried finding the answer myself, but everything that I am able to see seems to miss out the really basic first steps. Here's my logic: FIRST Look at the phone's specification. Lets say Samsung ...
Maxcot's user avatar
  • 981
3 votes
1 answer
3k views

Folder in root directory (/) gets automatically deleted after reboot

I have a rooted samsung galaxy y phone running android 2.3.6 As a root user , I successfully created "usr" directory in / path & set permission 755. But after rebooting my phone, usr directory ...
jonny789's user avatar
  • 365

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