如何检查更新 (CLI)

1. 确保启用了回拨服务。
2. 在命令行中，在 maintenance system updates 上下文中输入 show：

    zfs-appliance:maintenance system updates> show
    Updates:
    UPDATE                          DATE                      STATUS
    2013.1.1.5                      2014-2-18 08:00           downloadable
    ak-nas@2014.01.15,1-0           2014-1-15 14:38:53        previous
    ak-nas@2014.02.01,1-0           2014-2-1 19:38:55         previous
    ak-nas@2014.02.08,1-0           2014-2-8 08:59:04         current
    zfs-appliance:maintenance system updates>
   
    zfs-appliance:maintenance system updates> select status=downloadable
    zfs-appliance:maintenance system 2013.1.1.5> show
    Properties:
   
                          version = 2013.1.1.5
                              date = 2014-2-18 08:00
                          status = downloadable
                               url = https://updates.oracle.com/Orion/Services/download
   /p18269573_20131_Generic.zip?aru=17312483&patch_file=p18269573_20131_Generic.zip
   
                         checkdate = 2014-3-4
     zfs-appliance:maintenance system 2013.1.1.5>