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如果輸出磁碟有壞磁區，複製到相同大小的磁碟是否會導致問題？

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如果輸出磁碟有壞磁區，複製到相同大小的磁碟是否會導致問題？

我剛剛使用以下命令從一個 160GB 磁碟複製到另一個相同的 160GB 磁碟

sudo dd if=/dev/sda of=/dev/sdb

（在 Live Ubuntu CD 上運行）

然而，SMART測試/dev/sdb顯示有20個壞扇區。這是否意味著我剛剛從一個磁碟複製到另一個磁碟的資料中有 20 個漏洞？我可以透過其他方式複製來解決此問題嗎？

編輯：新增輸出：

sudo fsck -c -v /dev/sda1/

fsck from util-linux 2.20.1
e2fsck 1.42 (29-Nov-2011)
Checking for bad blocks (read-only test):   0.00% done, 0:00 elapsed. (0/0/0 errdone                                                 
Lubuntu: Updating bad block inode.
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information

Lubuntu: ***** FILE SYSTEM WAS MODIFIED *****

  275092 inodes used (4.30%)
    1888 non-contiguous files (0.7%)
     583 non-contiguous directories (0.2%)
         # of inodes with ind/dind/tind blocks: 0/0/0
         Extent depth histogram: 241132/283/2
 6505902 blocks used (25.41%)
       0 bad blocks
       1 large file

  208425 regular files
   28234 directories
      57 character device files
      25 block device files
       1 fifo
      41 links
   38340 symbolic links (33583 fast symbolic links)
       1 socket
--------
  275124 files

sudo fsck -c -v /dev/sdb1

fsck from util-linux 2.20.1
e2fsck 1.42 (29-Nov-2011)
Checking for bad blocks (read-only test):   0.00% done, 0:00 elapsed. (0/0/0 errdone                                                 
Lubuntu: Updating bad block inode.
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information

Lubuntu: ***** FILE SYSTEM WAS MODIFIED *****

  275092 inodes used (4.30%)
    1888 non-contiguous files (0.7%)
     583 non-contiguous directories (0.2%)
         # of inodes with ind/dind/tind blocks: 0/0/0
         Extent depth histogram: 241132/283/2
 6505902 blocks used (25.41%)
       0 bad blocks
       1 large file

  208425 regular files
   28234 directories
      57 character device files
      25 block device files
       1 fifo
      41 links
   38340 symbolic links (33583 fast symbolic links)
       1 socket
--------
  275124 files

答案1

它可以。理論上，您的檔案系統和驅動器應該圍繞它工作。當處理損壞的磁碟時，我傾向於支援以恢復為中心的 dd 變體，例如 gnu ddrescue （不要與其他較舊的 ddrescue 混淆），因為它們會在壞扇區重試後數據被複製出來。然後我會運行一個合適的檔案系統檢查實用程序，例如 chdsk 或 fsck 以確保文件系統是健康的。

然而，看看輸出，你應該沒問題。你係統中的魔法侏儒做得很好；p

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