通过 TWRP 的 adb shell dd 制作了整个 /dev/sda（包含所有分区）的映像，以便进一步取证和恢复已删除的文件。无法安装磁盘映像。还尝试安装一个小分区（sda19），同样的错误。
mmls sda.dd
Cannot determine partition type
有关的一些信息：
Disk /dev/loop9: 234.26 GiB, 251532365824 bytes, 491274152 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00000000
尝试挂载：
sudo losetup /dev/loop9 sda.dd
sudo mount -o ro /dev/loop9 /mnt/temp1
mount: /mnt/temp1: wrong fs type, bad option, bad superblock on /dev/loop9, missing codepage or helper program, or other error.
mkfs.vfat -v sda.dd
mkfs.fat 4.1 (2017-01-24)
Auto-selecting FAT32 for large filesystem
sda.dd has 255 heads and 63 sectors per track,
hidden sectors 0x0000;
logical sector size is 512,
using 0xf8 media descriptor, with 491274152 sectors;
drive number 0x80;
filesystem has 2 32-bit FATs and 64 sectors per cluster.
FAT size is 59968 sectors, and provides 7674283 clusters.
There are 64 reserved sectors.
Volume ID is a0fea9a1, no volume label.
尝试从稀疏转换：
./simg2img
Invalid sparse file format at header magic
Failed to read sparse file
e2fsck
e2fsck -f /dev/loop9
e2fsck 1.45.4 (23-Sep-2019)
ext2fs_open2: Bad magic number in super-block
e2fsck: Superblock invalid, trying backup blocks...
e2fsck: Bad magic number in super-block while trying to open /dev/loop9
The superblock could not be read or does not describe a valid ext2/ext3/ext4
filesystem. If the device is valid and it really contains an ext2/ext3/ext4
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193
or
e2fsck -b 32768
文件系统状态
fsstat sda.dd
FILE SYSTEM INFORMATION
--------------------------------------------
File System Type: FAT32
OEM Name: mkfs.fat
Volume ID: 0xa0fea9a1
Volume Label (Boot Sector): NO NAME
Volume Label (Root Directory):
File System Type Label: FAT32
Next Free Sector (FS Info): 120000
Free Sector Count (FS Info): 491154048
Sectors before file system: 0
File System Layout (in sectors)
Total Range: 0 - 491274151
* Reserved: 0 - 63
Boot Sector: 0
FS Info Sector: 1
Backup Boot Sector: 6
* FAT 0: 64 - 60031
* FAT 1: 60032 - 119999
* Data Area: 120000 - 491274151
Cluster Area: 120000 - 491274111
*** Root Directory: 120000 - 120063
** Non-clustered: 491274112 - 491274151
METADATA INFORMATION
--------------------------------------------
Range: 2 - 7858466438
Root Directory: 2
CONTENT INFORMATION
--------------------------------------------
Sector Size: 512
Cluster Size: 32768
Total Cluster Range: 2 - 7674284
FAT CONTENTS (in sectors)
--------------------------------------------
120000-120063 (64) -> EOF
尸检正在检测 fs 类型为 raw 的分区但无法对它们做任何事情。
有什么建议吗？谢谢！