无法在ubuntu vps上通过rbenv安装ruby 2.5.1

当我运行命令rbenv install 2.5.1时，我尝试在我的vps

Ubuntu 18.04

上安装ruby 2.5.1。它显示了一个错误

/home/bet/.rbenv/plugins/ruby-build/bin/ruby-build: line 1295: cannot create temp file for here-document: No space left on device
mktemp: failed to create directory via template ‘/tmp/ruby-build.20200313131832.28894.XXXXXX’: No space left on device
mkdir: cannot create directory ‘’: No such file or directory

BUILD FAILED (Ubuntu 18.04 using ruby-build 20200224-6-gd8019fe)

Inspect or clean up the working tree at 

我试图通过命令

df-h

检查磁盘空间。它显示

Filesystem                         Size  Used Avail Use% Mounted on
udev                               463M     0  463M   0% /dev
tmpfs                               99M  1.2M   98M   2% /run
/dev/mapper/ubuntu--vg-ubuntu--lv  3.9G  3.8G     0 100% /
tmpfs                              493M     0  493M   0% /dev/shm
tmpfs                              5.0M     0  5.0M   0% /run/lock
tmpfs                              493M     0  493M   0% /sys/fs/cgroup
/dev/sda2                          976M  145M  806M  16% /boot
tmpfs                               99M     0   99M   0% /run/user/1000
/dev/loop2                          92M   92M     0 100% /snap/core/8592
tmpfs                               99M     0   99M   0% /run/user/1001
/dev/loop0                          92M   92M     0 100% /snap/core/8689
tmpfs                               99M     0   99M   0% /run/user/1002

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所以任何人都可以帮助我。谢谢

当rbenv正在创建的临时文件的大小超过

/tmp/

目录的大小时，通常会发生这种情况。当我在安装ubuntu时为/tmp分配了更少的空间时，我曾经面对过这个问题。您的

/tmp/

目录的大小是多少？谢谢您的回答。我解决了。