全新安裝了Ubuntu Iot 22.04,
用snap安裝軟件很方便，但是Sandbox安全機制會造成一些障礙，例如docker 就跑不起來，不能掛在宿主機指定目錄，報錯如下：

ERROR: for dcm4chee_db_1  Cannot start service db: error while creating mount source path '/var/locaStarting dcm4chee_ldap_1 ... error

ERROR: for dcm4chee_ldap_1  Cannot start service ldap: error while creating mount source path '/var/local/dcm4chee-arc/ldap': mkdir /var/local: read-only file system

ERROR: for db  Cannot start service db: error while creating mount source path '/var/local/dcm4chee-arc/db': mkdir /var/local: read-only file system

ERROR: for ldap  Cannot start service ldap: error while creating mount source path '/var/local/dcm4chee-arc/ldap': mkdir /var/local: read-only file system

找到Stackoverflow的最佳答案， 是snap安裝的docker導致的問題，老老實實按照docker官方文檔重新裝了一遍。

snap remove docker

上面這條命令會把之前pull的鏡像全部刪除，又要重新pull ??。得虧網(wǎng)速可以。