Android - How can I view the Android internal partition table?
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)
I believe you want: cat /proc/mtd.
Also useful: mount.
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
~ #