我有一张 micro SD 卡（金士顿），我想从中提取数据，但它的文件系统未知，我猜不可能挂载。它来自一部 Android 6 手机。内核版本：3.18.19。它已经满了，只剩下 2GB
这是来自 Debian GNU/Linux 9.9 (stretch) 笔记本电脑（Intel Corporation Xeon E3-1200）内核版本 3.16.0-5-amd64
/var/log/kern.log：
sd 7:0:0:0: Attached scsi generic sg2 type 0
[sdb] 60751872 512-byte logical blocks: (31.1 GB/28.9 GiB)
Write Protect is off
Mode Sense: 03 00 00 00
No Caching mode page found
Assuming drive cache: write through
sdb: sdb1 sdb2
sd 7:0:0:0: [sdb] Attached SCSI removable disk
fdisk 输出：
Disk /dev/sdb: 29 GiB, 31104958464 byte, 60751872 sektorer
Enheter: sektorer av 1 * 512 = 512 byte
Sektorstorlek (logisk/fysisk): 512 byte / 512 byte
I/O-storlek (minsta/optimal): 512 byte / 512 byte
Disketikettstyp: gpt
Diskidentifierare: 0853DBF0-26DE-460E-BB9D-A33E7DFFA59B
/dev/sdb1 2048 34815 32768 16M unknown
/dev/sdb2 34816 60751838 60717023 29G unknown
/urs/bin/file 输出：
FILE002.GZ: gzip compressed data, ASCII, has CRC, extra field (it supposed to be images i guess.
FILE002.MPG: Macromedia Flash data, version ???
我试过 easeus。它恢复了文件，但毫无用处。图片被格式化为 gzip 文件，但其中没有任何内容。Mplayer 根本不起作用。只有 ffplay。以下是输出：
ffplay version 3.2.14-1~deb9u1 Copyright (c) 2003-2019 the FFmpeg developers
built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
configuration: --prefix=/usr --extra-version='1~deb9u1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 55. 34.101 / 55. 34.101
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.101 / 57. 56.101
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libavresample 3. 1. 0 / 3. 1. 0
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
[rawvideo @ 0x7f8544000920] Estimating duration from bitrate, this may be inaccurate
Input #0, rawvideo, from 'FILE003.MPG':vq= 0KB sq= 0B f=0/0
Duration: 00:18:40.50, start: 0.000000, bitrate: 18431 kb/s
Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 320x240, 18432 kb/s, 10 tbr, 10 tbn, 10 tbc
1.16 M-V: 0.000 fd= 0 aq= 0KB vq= 5852KB sq= 0B f=0/0
仅显示一张测试图片。
我也尝试将原始数据复制到 iso 文件并安装它，但没有成功。
有什么建议么？