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Feb 23rd, 2020
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  1. sudo -sH
  2. losetup -Pf disk.img
  3.  
  4. fdisk -l #可以看到硬碟了,目標在 loop4p
  5.  
  6. mkdir /mnt/loop4p2
  7. mount /dev/loop4p2 loop4p2
  8.  
  9. # 先清一些垃圾
  10. cd /mnt/loop4p2
  11. rm var/log/*.gz var/log/*.1 var/cache/apt/archives/*.deb
  12.  
  13. dd if=/dev/zero of=/mnt/loop4p2/empty
  14. # df 可以看到硬碟慢慢減少
  15.  
  16. rm /mnt/loop4p2/empty
  17.  
  18. # 記下 df 有多少,類似
  19. # /dev/loop4p2 122851588 113626940 6090084 95% /mnt/loop4p2
  20. # 則目標為 113626940,這次應該希望 120000000 就好,丟過過去再擴容
  21.  
  22. umount /mnt/loop4p2/empty
  23.  
  24. e2fsck -f /dev/loop4p2
  25. resize2fs /dev/loop4p2 120000000s
  26.  
  27. dd if=/loop4 of=/dev/sdc
  28.  
  29. # fdisk 刪除後新增 = 擴容,可以從 table 層 (DOS / GPT) 開始重建
  30.  
  31. # e2fsck -f /dev/sdc1
  32. # resize2fs /dev/sdc1
  33.  
  34. losetup -vd /dev/loop4p2
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