# E: Unable to locate package yum

更换国内数据源 Ubuntu20.04、22.04 报错 E: Unable to locate package yum 终极解决方案-CSDN博客

 sudo vim /etc/apt/sources.list

deb http://archive.ubuntu.com/ubuntu/ trusty main universe restricted multiverse

```sql
sudo apt-get update

sudo apt-get install yum

```cobol
sudo vim /etc/apt/sources.list