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.
9 Answers
I believe you want: cat /proc/mtd.
Also useful: mount.
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cat /proc/partitionsshows a list of all the partitions too. I thinkmountcorrelates withcat /proc/mounts. Ah, good 'ol/procCommented Jul 18, 2013 at 11:35 -
all I get is
dev: size erasesize namewhether I run as su or not. android.stackexchange.com/q/53225/693– endolithCommented Sep 28, 2013 at 14:17 -
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/proc/mtdis not available on all devices, while/proc/partitionsshould be.– IzzyCommented Jul 20, 2015 at 16:33
I usually use a combination of the following 4 commands and correlate them, since each of these commands gives a piece of the information that might be needed.
Summarily:
Using
dflists the filesystem path alias and size info as seen below (total size, used, free and block size)Example output:
root@ks01lte:/sdcard # df df Filesystem Size Used Free Blksize /dev 910.0M 92.0K 909.9M 4.0K /firmware 64.0M 8.7M 55.2M 16.0K /firmware-modem 64.0M 49.2M 14.8M 16.0K /system 2.2G 2.2G 62.7M 4.0K /data 11.9G 3.0G 8.9G 4.0K /cache 31.5M 4.1M 27.4M 4.0K /persist 7.9M 4.0M 3.8M 4.0K /efs 13.8M 4.4M 9.3M 4.0K /storage/emulated 910.0M 0.0K 910.0M 4.0K /storage/emulated/0 11.9G 3.0G 8.9G 4.0K /storage/emulated/0/Android/obb 11.9G 3.0G 8.9G 4.0K /storage/emulated/legacy 11.9G 3.0G 8.9G 4.0K /storage/emulated/legacy/Android/obb 11.9G 3.0G 8.9G 4.0K /mnt/media_rw/extSdCard 29.7G 251.8M 29.5G 32.0K /storage/extSdCard 29.7G 251.8M 29.5G 32.0K(... cut for space reasons)
Using
cat /proc/mountsshows the partition file path, the alias, the filesystem type, the startnig inode, the number of blocks, read/write status (and other parameters of the individual partition that I'm not entirely sure of)- NB: The output of
cat /proc/mountscan be a bit messy, but if you read it line by line (entry by entry) carefully you'll get the info Example output:
root@ks01lte:/sdcard # cat /proc/mounts cat /proc/mounts rootfs / rootfs ro,relatime 0 0 tmpfs /dev tmpfs rw,seclabel,nosuid,relatime,size=931840k,nr_inodes=124673,mode=755 0 0 devpts /dev/pts devpts rw,seclabel,relatime,mode=600 0 0 none /dev/cpuctl cgroup rw,relatime,cpu 0 0 proc /proc proc rw,relatime 0 0 sysfs /sys sysfs rw,seclabel,relatime 0 0 selinuxfs /sys/fs/selinux selinuxfs rw,relatime 0 0 debugfs /sys/kernel/debug debugfs rw,relatime 0 0 none /sys/fs/cgroup tmpfs rw,seclabel,relatime,size=931840k,nr_inodes=124673,mode=750,gid=1000 0 0 /dev/block/platform/msm_sdcc.1/by-name/system /system ext4 ro,seclabel,relatime,data=ordered 0 0 /dev/block/platform/msm_sdcc.1/by-name/userdata /data ext4 rw,seclabel,nosuid,nodev,noatime,discard,journal_checksum,journal_async_commit,noauto_da_alloc,data=ordered 0 0 /dev/block/platform/msm_sdcc.1/by-name/cache /cache ext4 rw,seclabel,nosuid,nodev,noatime,discard,journal_checksum,journal_async_commit,noauto_da_alloc,errors=panic,data=ordered 0 0 /dev/block/platform/msm_sdcc.1/by-name/persist /persist ext4 rw,seclabel,nosuid,nodev,noatime,discard,journal_checksum,journal_async_commit,noauto_da_alloc,data=ordered 0 0 /dev/block/platform/msm_sdcc.1/by-name/efs /efs ext4 rw,seclabel,nosuid,nodev,noatime,discard,journal_checksum,journal_async_commit,noauto_da_alloc,data=ordered 0 0
- NB: The output of
(... cut for space reasons)
Using
cat /proc/partitionsyou will get the actual partition name identifier and the number of blocks in the partition.Example output:
root@ks01lte:/sdcard # cat /proc/partitions cat /proc/partitions major minor #blocks name 253 0 1048576 vnswap0 179 0 15388672 mmcblk0 179 1 15360 mmcblk0p1 179 2 58816 mmcblk0p2 179 3 512 mmcblk0p3 179 4 32 mmcblk0p4 179 5 32 mmcblk0p5 179 6 2048 mmcblk0p6 179 7 512 mmcblk0p7 179 8 512 mmcblk0p8 179 9 10240 mmcblk0p9 179 10 10240 mmcblk0p10 179 11 14336 mmcblk0p11 179 12 3072 mmcblk0p12 179 13 3072 mmcblk0p13 179 14 20480 mmcblk0p14 179 15 20480 mmcblk0p15 179 16 10240 mmcblk0p16 179 17 7159 mmcblk0p17 179 18 3072 mmcblk0p18(... cut for space reasons)
Using
ls -al /dev/block/platform/msm_sdcc.1/by-nameyou get the mapping between the partition alias and the path of actual partition file (you also get the owner, their user group, etc)Example output:
root@ks01lte:/sdcard # ls -al /dev/block/platform/msm_sdcc.1/by-name ls -al /dev/block/platform/msm_sdcc.1/by-name lrwxrwxrwx root root 2014-01-20 11:29 aboot -> /dev/block/mmcblk0p6 lrwxrwxrwx root root 2014-01-20 11:29 apnhlos -> /dev/block/mmcblk0p1 lrwxrwxrwx root root 2014-01-20 11:29 backup -> /dev/block/mmcblk0p17 lrwxrwxrwx root root 2014-01-20 11:29 boot -> /dev/block/mmcblk0p14 lrwxrwxrwx root root 2014-01-20 11:29 hidden -> /dev/block/mmcblk0p25 lrwxrwxrwx root root 2014-01-20 11:29 modem -> /dev/block/mmcblk0p2 lrwxrwxrwx root root 2014-01-20 11:29 persdata -> /dev/block/mmcblk0p22 lrwxrwxrwx root root 2014-01-20 11:29 persist -> /dev/block/mmcblk0p21 lrwxrwxrwx root root 2014-01-20 11:29 recovery -> /dev/block/mmcblk0p15 lrwxrwxrwx root root 2014-01-20 11:29 system -> /dev/block/mmcblk0p23 lrwxrwxrwx root root 2014-01-20 11:29 tz -> /dev/block/mmcblk0p8 lrwxrwxrwx root root 2014-01-20 11:29 userdata -> /dev/block/mmcblk0p26(... cut for space reasons)
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1Don't have
/dev/block/platform/xxx/by-name. Did have/proc/emmc, which is similar, but doesn't list the boot partitions. Also don't havecat /proc/mounts, but usedmountinstead. Commented Feb 18, 2016 at 4:00 -
I m trying to figure out
vbmeta partitionsize & location. Where is that Commented Oct 8, 2021 at 3:18
Old thread but found something nobody else has mentioned... just in case anyone finds it useful.
ls -la /dev/block/bootdevice/by-name
The directory contains named symlinks to all the partitons.
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4@alecxs nobody here has pointed out that specific directory, it can occasionally be useful when other solutions don't have the information you want. I fail to see the purpose of your comment. Commented Dec 23, 2019 at 15:11
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2if you like, you can improve your answer with
ls -l $(find /dev/block -name by-name)this will cover all possible paths (which of course varies for other devices)– alecxsCommented Dec 23, 2019 at 16:28 -
@alecxs Confirmed, tested working in termux-v0.79. Celeb solution only worked in my TWRP 3.7.0 terminal. Commented Jan 2, 2023 at 17:42
Even more useful information can be obtained from parted. An example when the block device is /dev/block/mmcblk0:
~ # parted /dev/block/mmcblk0 print
Model: MMC SEM04G (sd/mmc)
Disk /dev/block/mmcblk0: 3959MB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Number Start End Size File system Name Flags
10 524kB 1573kB 1049kB PIT
6 1573kB 3146kB 1573kB CSPSA FS
7 4194kB 14.7MB 10.5MB ext4 EFS
2 14.7MB 31.5MB 16.8MB ext4 Modem FS
14 32.5MB 34.6MB 2097kB SBL
16 34.6MB 36.7MB 2097kB SBL_2
1 36.7MB 53.5MB 16.8MB PARAM
12 53.5MB 55.6MB 2097kB IPL Modem
13 55.6MB 72.4MB 16.8MB Modem
15 72.4MB 89.1MB 16.8MB Kernel
17 89.1MB 106MB 16.8MB Kernel2
3 106MB 748MB 642MB ext4 SYSTEM
5 748MB 2056MB 1309MB ext4 DATAFS
4 2056MB 2377MB 321MB ext4 CACHEFS
9 2377MB 2713MB 336MB ext4 HIDDEN
11 2713MB 2765MB 52.4MB Fota
8 2765MB 3949MB 1184MB UMS
~ #
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6parted not installed on my device, so presumably not available by default. Commented Nov 2, 2015 at 9:00
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3parted isn't available on android devices by default, solution is not viable– CybeXCommented Feb 8, 2021 at 1:11
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You can use fdisk via busybox on a droid. So, assuming you have the busybox binary on your rom, and it's on your path, the command would simply be:
busybox fdisk [the various fdisk options...]
Example output of an i9305 with TWRP recovery running (v3.5.0_9-0):
~ # busybox fdisk -l /dev/block/mmcblk0
Found valid GPT with protective MBR; using GPT
Disk /dev/block/mmcblk0: 30777344 sectors, 2740M
Logical sector size: 512
Disk identifier (GUID): 52444e41-494f-2044-4d4d-43204449534b
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 30777310
Number Start (sector) End (sector) Size Code Name
1 8192 16383 4096K 0700 BOTA0
2 16384 24575 4096K 0700 BOTA1
3 24576 65535 20.0M 0700 EFS
4 65536 73727 4096K 0700 m9kefs1
5 73728 81919 4096K 0700 m9kefs2
6 81920 90111 4096K 0700 m9kefs3
7 90112 106495 8192K 0700 PARAM
8 106496 122879 8192K 0700 BOOT
9 122880 139263 8192K 0700 RECOVERY
10 139264 319487 88.0M 0700 RADIO
11 319488 843775 256M 0700 TOMBSTONES
12 843776 2940927 1024M 0700 CACHE
13 2940928 6086655 1536M 0700 SYSTEM
14 6086656 7233535 560M 0700 HIDDEN
15 7233536 7249919 8192K 0700 OTA
16 7249920 30769151 11.2G 0700 USERDATA
You can see sizes and usage statistics of all mounted partitions by simply using this command:
df
Note, the typical df -h does not work here and is not needed because the output is already in megabytes. The command works within adb shell and the Android terminal emulator, but not in the Recovery mode terminal because nothing is mounted at that point.
For internal storage only, you can install DiskInfo. But it doesn't show the file system of my SD card.
for listing mmcblk0 partitions:
cat /proc/dumchar_info
Part_Name Size StartAddr Type MapTo
preloader 0x0000000000600000 0x0000000000000000 2 /dev/misc-sd
mbr 0x0000000000080000 0x0000000000000000 2 /dev/block/mmcblk0
ebr1 0x0000000000080000 0x0000000000080000 2 /dev/block/mmcblk0p1
pro_info 0x0000000000300000 0x0000000000100000 2 /dev/block/mmcblk0
nvram 0x0000000000500000 0x0000000000400000 2 /dev/block/mmcblk0
protect_f 0x0000000000a00000 0x0000000000900000 2 /dev/block/mmcblk0p2
protect_s 0x0000000000a00000 0x0000000001300000 2 /dev/block/mmcblk0p3
seccfg 0x0000000000020000 0x0000000001d00000 2 /dev/block/mmcblk0
uboot 0x0000000000060000 0x0000000001d20000 2 /dev/block/mmcblk0
bootimg 0x0000000000600000 0x0000000001d80000 2 /dev/block/mmcblk0
recovery 0x0000000000600000 0x0000000002380000 2 /dev/block/mmcblk0
sec_ro 0x0000000000600000 0x0000000002980000 2 /dev/block/mmcblk0p4
misc 0x0000000000080000 0x0000000002f80000 2 /dev/block/mmcblk0
logo 0x0000000000300000 0x0000000003000000 2 /dev/block/mmcblk0
expdb 0x0000000000080000 0x0000000003300000 2 /dev/block/mmcblk0
android 0x0000000000a00000 0x0000000003380000 2 /dev/block/mmcblk0p5
cache 0x000000002bc00000 0x0000000003d80000 2 /dev/block/mmcblk0p6
usrdata 0x00000000b6ca0000 0x000000002f980000 2 /dev/block/mmcblk0p7
bmtpool 0x0000000000000000 0x0000000037780000 2 /dev/block/mmcblk0
Part_Name:Partition name you should open;
Size:size of partition
StartAddr:Start Address of partition;
Type:Type of partition(MTD=1,EMMC=2)
MapTo:actual device you operate
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2On my device there is a
/proc/diskstatswith similar info, though not as pretty formatted. (TWRP recovery)– doakCommented Feb 1, 2021 at 19:38
Try this in the path -
dev/block/platform/******/by-name # ls -al
try out all directory inside dev/block/platform/**/byname
fdisk -l /dev/block/mmcblk0