按照扩容到外置磁盘（https://www.ecoo.top/docs/tutorial-extras/harddisk）的方法，一个代码也执行不下去，我是插的U盘，手动格式化的格式。但是在执行的时候，一直因为玩客云存储空间不足而无法执行下去，比如：
root@hass:~# nasupdate
Command 'nasupdate' not found, did you mean:
command 'nsupdate' from deb dnsutils
command 'nsupdate' from deb bind9-dnsutils
Try: apt install <deb name>
因为没有这个命令，所以需要安装，接着执行：
root@hass:~# sudo apt-get install git
Reading package lists... Done
Building dependency tree
Reading state information... Done
Suggested packages:
gettext-base git-daemon-run | git-daemon-sysvinit git-doc git-el git-email git-gui gitk gitweb git-cvs git-mediawiki
git-svn
The following packages will be upgraded:
git
1 upgraded, 0 newly installed, 0 to remove and 131 not upgraded.
Need to get 4,554 kB of archives.
After this operation, 51.2 kB of additional disk space will be used.
E: You don't have enough free space in /var/cache/apt/archives/.
提示没有足够的空间，这样的问题应该怎样继续下去啊
