Alpine Linux的官方wiki对于安装图形界面有着挺详细的文档。
页面的网址为：https://wiki.alpinelinux.org/wiki/Xfce#Installation_using_setup-desktop
xfce4是一个轻量级的桌面环境，用于基于Linux的操作系统。它以低系统资源消耗和高度可配置性而闻名。
使用 setup-desktop 脚本安装
Alpine Linux有一个快速安装桌面的脚本 setup-desktop
localhost:~# setup-desktop
Setup a user? (enter a lower-case loginname, or 'no') [no] sean
Full name for user sean [sean]
Changing password for sean
New password:
Bad password: too weak
Retype password:
passwd: password for sean changed by root
Enter ssh key or URL for sean (or 'none') [none]
Which desktop environment? ('gnome', 'plasma', 'xfce', 'mate', 'sway' or 'none') [none] xfce
Updating repository indexes... done.
(1/290) Installing udev-init-scripts (35-r1)
…… 略 ……
Executing busybox-1.36.1-r29.trigger
Executing eudev-3.2.14-r2.trigger
Executing glib-2.80.5-r0.trigger
Executing fontconfig-2.15.0-r1.trigger
Executing shared-mime-info-2.4-r0.trigger
Executing gdk-pixbuf-2.42.12-r0.trigger
Executing gtk-update-icon-cache-3.24.43-r0.trigger
Executing gtk+3.0-3.24.43-r0.trigger
Executing gvfs-1.52.1-r0.trigger
Executing dbus-1.14.10-r1.trigger
Executing mkfontscale-1.2.2-r6.trigger
Executing desktop-file-utils-0.27-r0.trigger
1 error; 1111 MiB in 408 packages
ERROR: firefox-131.0.2-r0: package mentioned in index not found (try 'apk update')
* service lightdm added to runlevel default
执行后首先会有交互，要求新创建一个桌面使用时登录用的非root用户；该用户的密码、ssh key；以及想要会用的桌面应用的类型，这里我是选择了轻量级的xfce。
Setup a user? (enter a lower-case loginname, or 'no') [no] sean
Full name for user sean [sean]
Changing password for sean
New password:
Bad password: too weak
Retype password:
passwd: password for sean changed by root
Enter ssh key or URL for sean (or 'none') [none]
Which desktop environment? ('gnome', 'plasma', 'xfce', 'mate', 'sway' or 'none') [none] xfce
安装过程中，会有一处报错， 是关于firefox的，可以暂时不用理会。
启动dbus（桌面总线）服务并为其添加系统启动时自启动
localhost:~# rc-service dbus start
* /run/dbus: creating directory
* /run/dbus: correcting owner
* Starting System Message Bus ... [ ok ]
localhost:~# rc-update add dbus
* service dbus added to runlevel default
使用显示管理器（图形登录）启动xfce且添加其系统启动时自启动。
localhost:~# rc-service lightdm start
* /run/lightdm: creating directory
* /run/lightdm: correcting owner
* Starting Display Manager ... [ ok ]
上面的rc-service lightdm start执行完成后，会出现登录的界面
输入正确的用户名和密码后，就可以进入到xfce4的桌面并开始使用桌面版的功能。
可以正常进入到桌面后，执行下面的命令，以便可以在系统启动的时候，自动开启桌面。
localhost:~# rc-update add lightdm
* rc-update: lightdm already installed in runlevel `default'; skipping