我试图更新我的软件包，我yum update以 root 用户身份触发了命令，但随后我在下载软件包时遇到错误，错误号是 **[错误 5] [错误 13] ** 我不知道，但它显示权限被拒绝，类似于错误下载软件包，因为我没有这样做的权限。请帮忙，我也无法在我的 centos 上安装任何软件。
$ yum update
Loaded plugins: fastestmirror, langpacks
You need to be root to perform this command.
(base) [ales@k8s-master ~]$ sudo yum update
[sudo] password for ales:
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
epel/x86_64/metalink | 7.1 kB 00:00:00
* base: mirrors.praction.in
* epel: sg.fedora.ipserverone.com
* extras: mirrors.praction.in
* rpmfusion-free-updates: mirror.vutbr.cz
* updates: mirrors.praction.in
azure-cli | 2.9 kB 00:00:00
base | 3.6 kB 00:00:00
docker-ce-stable | 3.5 kB 00:00:00
epel | 5.3 kB 00:00:00
extras | 2.9 kB 00:00:00
google-chrome | 1.3 kB 00:00:00
http://pkg.jenkins.io/redhat-stable/repodata/repomd.xml: [Errno 12] Timeout on http://pkg.jenkins.io/redhat-stable/repodata/repomd.xml: (28, 'Connection timed out after 30000 milliseconds')
Trying other mirror.
jenkins | 2.9 kB 00:00:00
kubernetes/signature | 454 B 00:00:00
kubernetes/signature | 1.4 kB 00:00:00 !!!
https://miktex.org/download/fedora/30/repodata/repomd.xml: [Errno 12] Timeout on https://miktex.org/download/fedora/30/repodata/repomd.xml: (28, 'Connection timed out after 30000 milliseconds')
Trying other mirror.
https://miktex.org/download/fedora/30/repodata/repomd.xml: [Errno 12] Timeout on https://miktex.org/download/fedora/30/repodata/repomd.xml: (28, 'Connection timed out after 30001 milliseconds')
Trying other mirror.
miktex-fedora-28 | 2.9 kB 00:00:00
rpmfusion-free-updates | 3.7 kB 00:00:00
teamviewer | 2.5 kB 00:00:00
updates | 2.9 kB 00:00:00
virtualbox/7/x86_64/signature | 181 B 00:00:00
virtualbox/7/x86_64/signature | 2.9 kB 00:00:00 !!!
Resolving Dependencies
--> Running transaction check
---> Package containerd.io.x86_64 0:1.2.6-3.3.el7 will be updated
---> Package containerd.io.x86_64 0:1.2.10-3.2.el7 will be an update
---> Package docker-ce.x86_64 3:19.03.2-3.el7 will be updated
---> Package docker-ce.x86_64 3:19.03.3-3.el7 will be an update
---> Package docker-ce-cli.x86_64 1:19.03.2-3.el7 will be updated
---> Package docker-ce-cli.x86_64 1:19.03.3-3.el7 will be an update
---> Package epel-release.noarch 0:7-11 will be updated
---> Package epel-release.noarch 0:7-12 will be an update
---> Package google-chrome-stable.x86_64 0:77.0.3865.90-1 will be updated
---> Package google-chrome-stable.x86_64 0:77.0.3865.120-1 will be an update
---> Package x264-libs.x86_64 0:0.148-23.20170521gitaaa9aa8.el7 will be updated
---> Package x264-libs.x86_64 0:0.148-24.20170521gitaaa9aa8.el7 will be an update
--> Finished Dependency Resolution
Dependencies Resolved
==================================================================================
Package Arch Version Repository Size
==================================================================================
Updating:
containerd.io x86_64 1.2.10-3.2.el7 docker-ce-stable 23 M
docker-ce x86_64 3:19.03.3-3.el7 docker-ce-stable 24 M
docker-ce-cli x86_64 1:19.03.3-3.el7 docker-ce-stable 39 M
epel-release noarch 7-12 epel 15 k
google-chrome-stable x86_64 77.0.3865.120-1 google-chrome 59 M
x264-libs x86_64 0.148-24.20170521gitaaa9aa8.el7
rpmfusion-free-updates 556 k
Transaction Summary
==================================================================================
Upgrade 6 Packages
Total download size: 147 M
Is this ok [y/d/N]: y
Downloading packages:
No Presto metadata available for google-chrome
No Presto metadata available for docker-ce-stable
No Presto metadata available for rpmfusion-free-updates
Failed to download prestodelta for repository epel: [Errno 5] [Errno 13] Permission denied
Error downloading packages:
3:docker-ce-19.03.3-3.el7.x86_64: [Errno 5] [Errno 13] Permission denied
containerd.io-1.2.10-3.2.el7.x86_64: [Errno 5] [Errno 13] Permission denied
epel-release-7-12.noarch: [Errno 5] [Errno 13] Permission denied
1:docker-ce-cli-19.03.3-3.el7.x86_64: [Errno 5] [Errno 13] Permission denied
google-chrome-stable-77.0.3865.120-1.x86_64: [Errno 5] [Errno 13] Permission denied
x264-libs-0.148-24.20170521gitaaa9aa8.el7.x86_64: [Errno 5] [Errno 13] Permission denied