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我正在尝试安装一些 Qt 库，如下所示：
sudo apt-get install libqt5webengine5 libqt5webenginewidgets5
但我不断收到这样的错误：
The hostname -f command returned: $1
Your system needs to have a fully qualified domain name (fqdn) in
order to install the var-qmail packages.
Installation aborted.
dpkg: error processing package qmail (--configure):
installed qmail package post-installation script subprocess returned error exit status 1
dpkg: dependency problems prevent configuration of qmail-run:
qmail-run depends on qmail (>= 1.06-2.1); however:
Package qmail is not configured yet.
No apport report written because the error message indicates its a followup error from a previous failure.
dpkg: error processing package qmail-run (--configure):
dependency problems - leaving unconfigured
Errors were encountered while processing:
qmail
qmail-run
E: Sub-process /usr/bin/dpkg returned an error code (1)
我如何安装这些库？
编辑：
ls: cannot access '–l': No such file or directory
qmail.list
qmail.md5sums
qmail.postinst
qmail.postrm
qmail.preinst
qmail-run.conffiles
qmail-run.list
qmail-run.md5sums
qmail-run.postinst
qmail-run.postrm
qmail-run.preinst
qmail-uids-gids.list
qmail-uids-gids.md5sums
qmail-uids-gids.postinst
qmail-uids-gids.postrm
qmail-uids-gids.preinst
The hostname -f command returned: Lenovo-V330-15IKB
You must have a fully qualified domain name (fqdn) for your system
to install the qmail and qmail-run packages.
Installation aborted.
dpkg: error processing package qmail-run (--configure):
installed qmail-run package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
qmail-run
E: Sub-process /usr/bin/dpkg returned an error code (1)
错误开启sudo dpkg --configure -a
Setting up qmail-run (2.0.2+nmu1) ...
The hostname -f command returned: hammad-Lenovo-V330-15IKB
You must have a fully qualified domain name (fqdn) for your system
to install the qmail and qmail-run packages.
Installation aborted.
dpkg: error processing package qmail-run (--configure):
installed qmail-run package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
qmail-run
答案1
我不是一个伟大的系统管理员大师，---让经验丰富的系统管理员纠正我，---我还没有彻底阅读qmail文档hostname和源代码，但这有帮助