关于 android 手机文件恢复，试了几个应用没用后，我尝试用 adb，然而。。。

[linux40]

是不是米 5 的分区太奇葩了，哪个是 sdcard 的分区呀。。。

gemini:/ # cat /proc/partitions
major minor  #blocks  name

   8        0   57794560 sda
   8        1         16 sda1
   8        2          8 sda2
   8        3        720 sda3
   8        4        128 sda4
   8        5        128 sda5
   8        6        512 sda6
   8        7        512 sda7
   8        8       2048 sda8
   8        9       4096 sda9
   8       10       8192 sda10
   8       11      16384 sda11
   8       12      32768 sda12
   8       13     262144 sda13
   8       14   57466860 sda14
   8       16       4096 sdb
   8       17       4052 sdb1
   8       32       4096 sdc
   8       33       4052 sdc1
   8       48     131072 sdd
   8       49         32 sdd1
   8       50        936 sdd2
   8       51         32 sdd3
   8       52       1024 sdd4
   8       53       1024 sdd5
   8       64    4521984 sde
   8       65          4 sde1
   8       66          4 sde2
   8       67         32 sde3
   8       68        192 sde4
   8       69        256 sde5
   8       70        256 sde6
   8       71        128 sde7
   8       72        128 sde8
   8       73        512 sde9
   8       74        512 sde10
   8       75       1024 sde11
   8       76       1024 sde12
   8       77       1024 sde13
   8       78       1024 sde14
   8       79       4096 sde15
 259        0       4096 sde16
 259        1       1024 sde17
 259        2       1024 sde18
 259        3       1024 sde19
 259        4       1024 sde20
 259        5       1024 sde21
 259        6       1024 sde22
 259        7       2048 sde23
 259        8       2048 sde24
 259        9       1024 sde25
 259       10       1024 sde26
 259       11       2048 sde27
 259       12       4096 sde28
 259       13       2048 sde29
 259       14       2048 sde30
 259       15       8192 sde31
 259       16      20480 sde32
 259       17      32768 sde33
 259       18      32768 sde34
 259       19     196608 sde35
 259       20      65536 sde36
 259       21      65536 sde37
 259       22     851968 sde38
 259       23    3145728 sde39
 259       24       1024 sde40
   8       80      32768 sdf
   8       81          4 sdf1
   8       82        996 sdf2
   8       83       4096 sdf3
   8       84       3072 sdf4
   8       85       4096 sdf5
   8       86       1024 sdf6
 253        0   57466844 dm-0

下面是 mount:

gemini:/ # mount
rootfs on / type rootfs (ro,seclabel,size=1284728k,nr_inodes=321182)
tmpfs on /dev type tmpfs (rw,seclabel,nosuid,relatime,size=1362424k,nr_inodes=340606,mode=755)
devpts on /dev/pts type devpts (rw,seclabel,relatime,mode=600)
proc on /proc type proc (rw,relatime,gid=3009,hidepid=2)
sysfs on /sys type sysfs (rw,seclabel,relatime)
selinuxfs on /sys/fs/selinux type selinuxfs (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,seclabel,relatime)
none on /acct type cgroup (rw,relatime,cpuacct)
tmpfs on /mnt type tmpfs (rw,seclabel,relatime,size=1362424k,nr_inodes=340606,mode=755,gid=1000)
none on /config type configfs (rw,relatime)
none on /dev/memcg type cgroup (rw,relatime,memory)
none on /dev/cpuctl type cgroup (rw,relatime,cpu)
none on /dev/cpuset type cgroup (rw,relatime,cpuset,noprefix,release_agent=/sbin/cpuset_release_agent)
pstore on /sys/fs/pstore type pstore (rw,seclabel,relatime)
none on /dev/bfqio type cgroup (rw,relatime,bfqio)
/dev/block/sda13 on /cache type ext4 (rw,seclabel,nosuid,nodev,noatime,data=ordered)
/dev/block/sde39 on /system type ext4 (ro,seclabel,relatime,data=ordered)
/dev/block/sda12 on /persist type ext4 (rw,seclabel,nosuid,nodev,relatime,data=ordered)
/dev/block/sde32 on /dsp type ext4 (ro,context=u:object_r:dsp_file:s0,nosuid,nodev,relatime,data=ordered)
/dev/block/sde35 on /firmware type vfat (ro,context=u:object_r:firmware_file:s0,relatime,uid=1000,gid=1000,fmask=0337,dmask=0227,codepage=437,iocharset=iso8859-1,shortname=lower,errors=remount-ro)
/dev/block/sde26 on /bt_firmware type vfat (ro,context=u:object_r:bt_firmware_file:s0,relatime,uid=1002,gid=3002,fmask=0337,dmask=0227,codepage=437,iocharset=iso8859-1,shortname=lower,errors=remount-ro)
adb on /dev/usb-ffs/adb type functionfs (rw,relatime)
tmpfs on /storage type tmpfs (rw,seclabel,relatime,size=1362424k,nr_inodes=340606,mode=755,gid=1000)
/dev/block/dm-0 on /data type ext4 (rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,data=ordered)
/data/media on /mnt/runtime/default/emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=1015,multiuser,mask=6)
/data/media on /storage/emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=1015,multiuser,mask=6)
/data/media on /mnt/runtime/read/emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=9997,multiuser,mask=23)
/data/media on /mnt/runtime/write/emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=9997,multiuser,mask=7)

找到了 /dev/block/platform/XXX/for-name 下面有一行

lrwxrwxrwx 1 root root 16 2017-05-06 23:17 userdata -> /dev/block/sda14

。。。其实看大小也可以