我试图将我的应用程序移至过去可在Amazon Linux 1上运行的Amazon Linux 2（AL2）ami上运行。在尝试安装python26-virtualenv软件包的依赖项时，出现此错误：
[root@ip-10-186-34-249 ec2-user]# yum install -y python26-virtualenv
Loaded plugins: extras_suggestions, langpacks, priorities, update-motd
amzn2-core | 2.4 kB 00:00:00
epel/x86_64/metalink | 15 kB 00:00:00
epel | 5.3 kB 00:00:00
epel-debuginfo/x86_64/metalink | 14 kB 00:00:00
epel-debuginfo | 3.0 kB 00:00:00
epel-source/x86_64/metalink | 14 kB 00:00:00
epel-source | 4.1 kB 00:00:00
(1/5): epel/x86_64/updateinfo | 976 kB 00:00:00
(2/5): epel-debuginfo/x86_64/primary_db | 899 kB 00:00:00
(3/5): epel/x86_64/primary_db | 6.7 MB 00:00:00
(4/5): epel-source/x86_64/updateinfo | 976 kB 00:00:00
(5/5): epel-source/x86_64/primary_db | 2.4 MB 00:00:00
182 packages excluded due to repository priority protections
No package python26-virtualenv available.
Error: Nothing to do
我已使用以下命令在实例上启用了epel repo：
sudo yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
实例上yum repolist all的输出如下：
[ec2-user@ip-10-186-34-249 ~]$ yum repolist all
Loaded plugins: extras_suggestions, langpacks, priorities, update-motd
228 packages excluded due to repository priority protections
repo id repo name status
!amzn2-core/2/x86_64 Amazon Linux 2 core repository enabled: 16,418+183
!amzn2-core-debuginfo/2/x86_64 Amazon Linux 2 core repository - debuginfo packages enabled: 3,303+16
!amzn2-core-source/2 Amazon Linux 2 core repository - source packages enabled: 0
amzn2extra-docker/2/x86_64 Amazon Extras repo for docker enabled: 14
!amzn2extra-docker-debuginfo/2/x86_64 Amazon Extras debuginfo repo for docker disabled
amzn2extra-docker-source/2 Amazon Extras source repo for docker disabled
epel/x86_64 Extra Packages for Enterprise Linux 7 - x86_64 enabled: 13,023+209
epel-debuginfo/x86_64 Extra Packages for Enterprise Linux 7 - x86_64 - Debug enabled: 2,862+47
epel-source/x86_64 Extra Packages for Enterprise Linux 7 - x86_64 - Source enabled: 0
epel-testing/x86_64 Extra Packages for Enterprise Linux 7 - Testing - x86_64 disabled
!epel-testing-debuginfo/x86_64 Extra Packages for Enterprise Linux 7 - Testing - x86_64 disabled
epel-testing-source/x86_64 Extra Packages for Enterprise Linux 7 - Testing - x86_64 disabled
repolist: 35,620
在不存在此问题的Amazon Linux 1机器上，我在/etc/yum.repos.d/下看到其他存储库
[ec2-user@ip-10-150-135-107 ~]$ ls /etc/yum.repos.d/
amzn-main.repo amzn-preview.repo epel.repo
amzn-nosrc.repo amzn-updates.repo epel-testing.repo
尽管我可能是错的，但是我觉得如果我可以在新的AL2实例上启用amzn-main.repo，我将能够安装python26-virtualenv。这可能吗？如果没有，请提出一种在我的AL2实例上安装python26-virtualenv的方法。