I just rebooted an old Centos VM I have:
CentOS Linux release 7.1.1503 (Core)
when I try to do a:
sudo yum update
all the mirrors return 404 - not found.
I have tried in my browser and indeed the links don't exist anymore. How can I update my centos and get yum working again?
I needed to run:
yum clean all
yum --disablerepo=* --enablerepo=base update
yum update
and that cleaned everything up and cleared the 404 errors
Related
I have installed Icinga2 on my server, which is running CentOS 8. However, I run into problems when I try and install Icinga Web 2.
When I try and run the command yum -y install icingaweb2 icingacli, CentOS cannot find the packages. The following output is given:
Last metadata expiration check: 0:01:04 ago on Sat 16 Nov 2019 23:22:22 NZDT.
No match for argument: icingaweb2
No match for argument: icingacli
Error: Unable to find a match
It also cannot find the packages centos-release-scl and icingaweb2-selinux.
I've added the Icinga repositories to CentOS manually, including EPEL relase, and they are showing in the yum.repos.d folder. But every time I try and install Icinga Web 2, whether with yum or dnf, I get the same error. I've tried dnf makecache and yum makecache and have updated the packages, but nothing seems to work.
What is going on here?
For install icinga via package management you should add this repo: https://packages.icinga.com/epel/
There are some Perl modules that could previously be installed with:
yum install "perl(DateTime)"
Under CentOS7. In CentOS8 I get the error:
No match for argument: perl(DateTime)
I have the same problem for perl(Template), perl(YAML::XS), perl(Crypt::Eksblowfish::Bcrypt) and perl(JSON::XS)
I tried searching with:
yum provides *DateTime*
But I can't find anything there either.
perl-DateTime is no longer part of the CentOS 8 base OS. You'll need to enable the PowerTools repository, i.e. as root
# yum config-manager --set-enabled PowerTools
# yum update
# yum repolist
repo id repo name status
...
PowerTools CentOS-8 - PowerTools ...
...
# yum install "perl(DateTime)"
or...
# yum install perl-DateTime
perl(YAML::XS) (AKA perl-YAML-LibYAML) should also be available.
perl(Template) (AKA perl-Template-Toolkit) and perl(Crypt::Eksblowfish::Bcrypt) (AKA perl-Crypt-Eksblowfish) no longer seem to be provided, not even in EPEL8. So you'll have to install them from CPAN.
I am trying to install Nginx on centOS 7 but I keep getting this error
[nginx error][1]
[1]: https://i.stack.imgur.com/iwMhQ.png
Things I have tried:
-Yum Clean All
-Installed Epel-release
-Tried to install apt-get,wget, and unzip but receive the same errors
- created a yum repo for nginx with the following:
[nginx]
name=nginx repo
baseurl= ht tp://n ginx.org /packages/centos/7/$basearch/
gpgcheck=0
enabled=1
- sudo yum -y install nginx httpd-tools
- sudo vi /etc/nginx/nginx.conf
If anyone knows how I can get around this or knows an alternate way to install ELK Stack on centos7 that will be greatly appreciated, thanks!
In particular to installing Nginx on CentOS 7, not sure of what kind of error you have (could not open the image/picture from you), but just tried (around 10 minutes ago) on CentOS 7 (Vagrant Box "CentOS-7.2-1.8T"), it worked with the following simple 2 steps:
1. sudo yum -y install epel-release
2. sudo yum -y install nginx
It worked without running "yum clean all" and without creating "/etc/yum.repos.d/nginx.repo".
If httpd-tools is needed, it also worked by adding an extra (separate) command "sudo yum -y install httpd-tools".
Not sure if this is the solution or whether this is helpful enough, but just looking at what you have tried, I just want to share that even simpler steps seem sufficient enough to work.
name=nginx repo -> name=nginx
yum-config-manager --enable nginx
yum install nginx httpd-tools
nginx stable version install on CentOS 8
If you are installing ngnx on centos7,you need to add the repository using epel release. We need to add the repo first then we can start installing .
sudo yum install epel-release
Then we can edit repo
$frugalis vi /etc/yum.repos.d/nginx.repo
Now add the below
[nginx]
name=nginx repo
baseurl=https://nginx.org/packages/centos/7/$basearch/
gpgcheck=0
enabled=1
This will enable the repo .. For installations on any other OS Versions , you can add repo going to their official website here .Trick is you need to enable the repo based on the versions . Then you can follow next steps like Configuring selinux or enabling firewall.
For the last month my amazon EC2 instance running Ubuntu 16.04 has had the same message of the day (motd):
30 packages can be updated.
10 updates are security updates.
I have run the suggested commands:
sudo apt-get dist-upgrade
sudo apt-get update
sudo apt-get upgrade
After rebooting the instance the motd does not change. There are no packages to update, it is only the motd not updating.
The issue was resolved by changing the shebang in the apt-check script from:
sudo vi /usr/lib/update-notifier/apt-check
#!/usr/bin/python3
to
#!/usr/bin/python3.5
python3 was calling a python interpreter without the module apt_pkg installed. After changing it back to the default python3.5 the motd is updating properly.
If anyone else has a similar problem in the future you can run this command to manually check if there are packages available to update:
python3.5 /usr/lib/update-notifier/apt-check --human-readable
or
sudo /usr/lib/update-notifier/update-motd-updates-available
The following commands fixed my issue:
sudo apt update
sudo apt upgrade
Notice that my commands do not contain -get. As far as I can tell, apt and apt-get are two different things. It looks like the Message Of The Day (MOTD) on my installation was referring to apt.
I am trying to install a package on CentOS, but it throws error when I run the "yum" command. The internet connection is working fine.
I try to yum clean all but problem persist.
Error:
[root#dcos-master3 ~]# yum install ntp
Loaded plugins: fastestmirror
One of the configured repositories failed (Unknown),
and yum doesn't have enough cached data to continue. At this point the only
safe thing yum can do is fail. There are a few ways to work "fix" this:
1. Contact the upstream for the repository and get them to fix the problem.
2. Reconfigure the baseurl/etc. for the repository, to point to a working
upstream. This is most often useful if you are using a newer
distribution release than is supported by the repository (and the
packages for the previous distribution release still work).
3. Run the command with the repository temporarily disabled
yum --disablerepo=<repoid> ...
4. Disable the repository permanently, so yum won't use it by default. Yum
will then just ignore the repository until you permanently enable it
again or use --enablerepo for temporary usage:
yum-config-manager --disable <repoid>
or
subscription-manager repos --disable=<repoid>
5. Configure the failing repository to be skipped, if it is unavailable.
Note that yum will try to contact the repo. when it runs most commands,
so will have to try and fail each time (and thus. yum will be be much
slower). If it is a very temporary problem though, this is often a nice
compromise:
yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true
Cannot find a valid baseurl for repo: base/$releasever/x86_64
My yum repolist is the next:
[root#dcos-master3 ~]# yum repolist list
Loaded plugins: fastestmirror
https://yum.dockerproject.org/repo/main/centos/%24releasever/repodata/repomd.xml: [Errno 14] HTTPS Error 403 - Forbidden
Trying other mirror.
To address this issue please refer to the below knowledge base article
https://access.redhat.com/solutions/69319
If above article doesn't help to resolve this issue please create a bug on https://bugs.centos.org/
repolist: 0
If I list the repolist:
[root#dcos-master3 ~]# yum repolist
Loaded plugins: fastestmirror
https://yum.dockerproject.org/repo/main/centos/%24releasever/repodata/repomd.xml: [Errno 14] HTTPS Error 403 - Forbidden
Trying other mirror.
To address this issue please refer to the below knowledge base article
https://access.redhat.com/solutions/69319
If above article doesn't help to resolve this issue please create a bug on https://bugs.centos.org/
repo id repo name status
base/$releasever/x86_64 CentOS-$releasever - Base 0
dockerrepo/$releasever Docker Repository 0
extras/$releasever/x86_64 CentOS-$releasever - Extras 0
updates/$releasever/x86_64 CentOS-$releasever - Updates 0
repolist: 0
BEFORE TRYING ANY OF THIS, HAVE A BACKUP OF YOUR MACHINE, YOU COULD DAMAGE YOUR OS MORE/COMPLETELY
It seems that your yum variable $releasever is somehow corrupt,
it usually is caused by missing centos-release package on the machine for some obscure reasons.
You can check if you have the package by:
rpm -qi centos-release
You will probably see:
"package centos-release is not installed"
First find out the exact centos version that you have by executing as root:
cat /etc/redhat-release
You will see something like this:
CentOS Linux release 7.3.1611 (Core)
You can fetch the centos-release package from repo by:
wget http://vault.centos.org/centos/7.3.1611/updates/x86_64/Packages/centos-release-7-3.1611.el7.centos.2.5.x86_64.rpm
Now run reinstall centos-release package via rpm:
sudo rpm -Uvh --replacepkgs centos-release-7-3.1611.el7.centos.2.5.x86_64.rpm
As next you can try to install something with yum and you might get:
[root#dcos-master3 ikerlan]# sudo yum install wget
error: db5 error(-30969) from dbenv->open: BDB0091 DB_VERSION_MISMATCH: Database environment version mismatch
error: cannot open Packages index using db5 - (-30969)
error: cannot open Packages database in /var/lib/rpm
CRITICAL:yum.main:
Error: rpmdb open failed
Now you can try to reboot the machine or try to use the following command to rebuild the rpm db:
rpm --rebuilddb
I came across the same issue while downloading some packages in centos 7. After days of search, I found the solution:
Go to the yum repo directory.
cd /etc/yum.repos.d.
Make a copy of the CentOS-Base.repo file.
cp CentOS-Base.repo CentOS-Base.repo.old
Edit the CentOS-Base.repo file. Comment mirrorlist and uncomment baseurl.
vi CentOS-Base.repo
[base]
name=CentOS-$releasever - Base
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os&infra=$infra
baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
Now when you use yum, do the following.
sudo yum --disablerepo=* --enablerepo=base install httpd
Likewise for yum update.
sudo yum --disablerepo=* --enablerepo=base install httpd
It should work now.
I ran into this problem when attempting to install MariaDB on CentOS 7. I was super frustrated and after much searching found the answer at this link.
Here is what fixed this problem for me. Run as root.
# yum --disablerepo "*" --enablerepo epel install [package]
# yum clean all
"epel" can be whatever repo you like, but this one worked for me. Place [package] in the command just as written, not what package you are trying to install.
After you run the above, exit root and run whatever install you were attempting before encountering the error.
I noticed that in the failing url, your $releasever is %24releasever, but it should be 7 or 7.14.xx. Please check your yum config file at /etc/yum/var, or search in every .repo file, to see what is its value. It may be corrupted.
See Red Hat documentation for more information about how to set these variables.
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/deployment_guide/sec-using_yum_variables
yum install http://rpms.remirepo.net/enterprise/remi-release-7.rpm -y
yum -y install yum-utils
yum-config-manager --enable remi-php74
Then proceed to your installation/updates/etc
Always make sure NAT is active on your centos7. Specially when there is a VMnet2 for host. Because sometimes VMNet2 can be active instead of NAT and because of that you will not be able to connect to the internet through centos7. This is just a one reason for getting that error.