windows10 更新Ubuntu20.04 LTS的方法步骤

  frank@LAPTOP-0OCJTGJR:~$ do-release-upgrade  Checking for a new Ubuntu release  There is no development version of an LTS available.  To upgrade to the latest non-LTS develoment release  set Prompt=normal in /etc/update-manager/release-upgrades.  

  # Default behavior for the release upgrader.    [DEFAULT]  # Default prompting behavior, valid options:  #  # never - Never check for, or allow upgrading to, a new release.  # normal - Check to see if a new release is available. If more than one new  #      release is found, the release upgrader will attempt to upgrade to  #      the supported release that immediately succeeds the  #      currently-running release.  # lts  - Check to see if a new LTS release is available. The upgrader  #      will attempt to upgrade to the first LTS release available after  #      the currently-running one. Note that if this option is used and  #      the currently-running release is not itself an LTS release the  #      upgrader will assume prompt was meant to be normal.  #Prompt=lts  Prompt=normal

  Checking package manager  Reading package lists... Done  Building dependency tree  Reading state information... Done    Calculating the changes    Calculating the changes    Do you want to start the upgrade?      40 packages are going to be removed. 424 new packages are going to be  installed. 690 packages are going to be upgraded.    You have to download a total of 547 M. This download will take about  6 minutes with your connection.    Installing the upgrade can take several hours. Once the download has  finished, the process cannot be canceled.     Continue [yN] Details [d]y