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Erwann's questions

Martin Hope
Erwann
Asked: 2024-02-02 22:25:56 +0800 CST
  • 5

我尝试将 sdb 克隆到 sdc 上，但由于边缘大小不匹配而失败。我尝试使用 gdisk 进行恢复选项，但没有成功。现在我有什么选择可以从头开始？源磁盘有大量可用空间，我不需要克隆。

$ sudo dd if=/dev/sdb of=/dev/sdc bs=4M status=progress
1000165343232 bytes (1.0 TB, 931 GiB) copied, 100383 s, 10.0 MB/s[A
dd: error writing '/dev/sdc': No space left on device
238460+0 records in
238459+0 records out

$ sudo fdisk -l /dev/sdb
Disk /dev/sdb: 931.51 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: EXTERNAL_USB    
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: gpt
Disk identifier: F051C4EE-2188-44D2-8988-A6BFB515F49B

Device         Start        End   Sectors   Size Type
/dev/sdb1       2048  644534271 644532224 307.3G unknown
/dev/sdb2  896489472  994146303  97656832  46.6G unknown
/dev/sdb3  644534272  675784703  31250432  14.9G Microsoft basic data
/dev/sdb4  675784704  896489471 220704768 105.2G unknown
/dev/sdb5  994146304 1105475583 111329280  53.1G unknown

Partition table entries are not in disk order.


$ sudo gdisk /dev/sdc
GPT fdisk (gdisk) version 1.0.9.1

Warning! Disk size is smaller than the main header indicates! Loading
secondary header from the last sector of the disk! You should use 'v' to
verify disk integrity, and perhaps options on the experts' menu to repair
the disk.
Caution: invalid backup GPT header, but valid main header; regenerating
backup header from main header.

Warning! One or more CRCs don't match. You should repair the disk!
Main header: OK
Backup header: ERROR
Main partition table: OK
Backup partition table: ERROR

Partition table scan:
  MBR: protective
  BSD: not present
  APM: not present
  GPT: damaged

****************************************************************************
Caution: Found protective or hybrid MBR and corrupt GPT. Using GPT, but disk
verification and recovery are STRONGLY recommended.
****************************************************************************
clone
Martin Hope
Erwann
Asked: 2023-02-05 22:00:16 +0800 CST
  • 5

我有一台带有 Windows 7/OEM 许可证的笔记本电脑，我仍然有它的产品密钥。我已经用另一个 (Linux) 替换了这个操作系统，我正在尝试重新安装前者。问题陈述如下：我曾经有一个可用的 USB 恢复驱动器，但现在没有了。但在此期间，我使用gnome-disk-utility在外部 HDD 上制作了它的图像。它被命名为“win-live.img”。这就是我在笔记本电脑上恢复 Windows 所需要的全部内容。我尝试使用相同的实用程序恢复恢复驱动器，但它不可安装，也不能用于引导。有什么方法可以恢复 win-live.img 吗？

源文件的磁盘实用程序视图 源文件的文件管理器视图 恢复过程 目标驱动器

windows-7
Martin Hope
Erwann
Asked: 2019-05-07 20:44:56 +0800 CST
  • 5

我有两个输入源，每个都是视频+音频。我使用每个人的拍手和叠加音频来确定第一个领先 x=1.555s。我想分别创建一个由第一和第二输入的同步视频和音频组成的输出。

为了试用，我忽略了偏移量，并根据类似的帖子尝试了下面代码的不同变体。我可以看出音频来自第一个来源，因为图片和声音是同步的。

显然，我误解了代码的作用。有人可以澄清并提出建议以实现既定目标吗？

$ ffmpeg -i ipad.MOV -i laptop.webm -vcodec copy -acodec copy muxed.MP4
ffmpeg version 3.4.4-0ubuntu0.18.04.1 Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
  configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --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-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --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-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  WARNING: library configuration mismatch
  avcodec     configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --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-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --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-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared --enable-version3 --disable-doc --disable-programs --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libtesseract --enable-libvo_amrwbenc
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'ipad.MOV':
  Metadata:
    major_brand     : qt  
    minor_version   : 0
    compatible_brands: qt  
    creation_time   : 2019-05-06T19:22:15.000000Z
    com.apple.quicktime.make: Apple
    com.apple.quicktime.model: iPad mini 4
    com.apple.quicktime.software: 12.1
    com.apple.quicktime.creationdate: 2019-05-06T15:22:15-0400
  Duration: 00:00:15.19, start: 0.000000, bitrate: 8385 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720, 8279 kb/s, 30.02 fps, 30 tbr, 600 tbn, 1200 tbc (default)
    Metadata:
      rotate          : 90
      creation_time   : 2019-05-06T19:22:15.000000Z
      handler_name    : Core Media Data Handler
      encoder         : H.264
    Side data:
      displaymatrix: rotation of -90.00 degrees
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 93 kb/s (default)
    Metadata:
      creation_time   : 2019-05-06T19:22:15.000000Z
      handler_name    : Core Media Data Handler
    Stream #0:2(und): Data: none (mebx / 0x7862656D), 0 kb/s (default)
    Metadata:
      creation_time   : 2019-05-06T19:22:15.000000Z
      handler_name    : Core Media Data Handler
    Stream #0:3(und): Data: none (mebx / 0x7862656D), 0 kb/s (default)
    Metadata:
      creation_time   : 2019-05-06T19:22:15.000000Z
      handler_name    : Core Media Data Handler
Input #1, matroska,webm, from 'laptop.webm':
  Metadata:
    encoder         : GStreamer matroskamux version 1.14.1
    creation_time   : 2019-05-06T19:22:16.000000Z
  Duration: 00:00:15.90, start: 0.000000, bitrate: 1106 kb/s
    Stream #1:0(eng): Video: vp8, yuv420p(progressive), 640x480, SAR 1:1 DAR 4:3, 30 fps, 30 tbr, 1k tbn, 1k tbc (default)
    Metadata:
      title           : Video
    Stream #1:1(eng): Audio: vorbis, 44100 Hz, mono, fltp (default)
    Metadata:
      title           : Audio
Output #0, mp4, to 'muxed.MP4':
  Metadata:
    major_brand     : qt  
    minor_version   : 0
    compatible_brands: qt  
    com.apple.quicktime.creationdate: 2019-05-06T15:22:15-0400
    com.apple.quicktime.make: Apple
    com.apple.quicktime.model: iPad mini 4
    com.apple.quicktime.software: 12.1
    encoder         : Lavf57.83.100
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720, q=2-31, 8279 kb/s, 30.02 fps, 30 tbr, 19200 tbn, 600 tbc (default)
    Metadata:
      rotate          : 90
      creation_time   : 2019-05-06T19:22:15.000000Z
      handler_name    : Core Media Data Handler
      encoder         : H.264
    Side data:
      displaymatrix: rotation of -90.00 degrees
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 93 kb/s (default)
    Metadata:
      creation_time   : 2019-05-06T19:22:15.000000Z
      handler_name    : Core Media Data Handler
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame=  456 fps=0.0 q=-1.0 Lsize=   15539kB time=00:00:15.18 bitrate=8382.5kbits/s speed=32.6x    
video:15350kB audio:175kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.091235%

其他变体：

$ ffmpeg -i ipad.MOV -i laptop.webm -c:v copy -c:a copy muxed.MP4

叠加音频

ffmpeg mixing