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Ubuntu16.04升级到18.04的步骤

  1. 更新系统

    sudo apt update
    
    
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    Reading state information... Done
    42 packages can be upgraded. Run 'apt list --upgradable' to see them.
    
    sudo apt upgrade -y
    
    sudo apt dist-upgrade -y
    
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    Calculating upgrade... Done
    The following package was automatically installed and is no longer required:
      libllvm5.0
    Use 'sudo apt autoremove' to remove it.
    0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
    
  2. 删除无用的依赖

    sudo apt-get autoremove -y
    
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    The following packages will be REMOVED:
      libllvm5.0
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    After this operation, 49.1 MB disk space will be freed.
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    Removing libllvm5.0:arm64 (1:5.0-3~16.04.1) ...
    Processing triggers for libc-bin (2.23-0ubuntu10) ...
    
  3. 安装update-manager-core

    sudo apt install update-manager-core -y
    
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    The following additional packages will be installed:
      python3-distupgrade python3-update-manager ubuntu-release-upgrader-core
    The following NEW packages will be installed:
      python3-distupgrade python3-update-manager ubuntu-release-upgrader-core
      update-manager-core
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    Need to get 172 kB of archives.
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  4. 升级到18.04

    sudo do-release-upgrade