This error is driving me crazy, I have been trying everything posted in the forums and nothing works.

When I Type:

# yum update

I get the following error:

[root@www yum.repos.d]# yum update Complementos cargados:fastestmirror Loading mirror speeds from cached hostfile Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was 14: curl#56 - "Recv failure: Connection reset by remote machine"

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/7/x86_64

It is a production server with its own IP, so I haven't tried that DHCP on and ONBOOT=no (I have it in yes), etc.

If i type:

# curl -v 'http://mirrorlist.centos.org/?repo=os&arch=x86_64&release=7'

This is what I get:

[root@www yum.repos.d]# curl -v 'http://mirrorlist.centos.org/?repo=os&arch=x86_64&release=7'
* About to connect() to mirrorlist.centos.org port 80 (#0)
*   Trying 2001:1b48:203::4:10...
* Connected to mirrorlist.centos.org (2001:1b48:203::4:10) port 80 (#0)
> GET /?repo=os&arch=x86_64&release=7 HTTP/1.1
> User-Agent: curl/7.29.0
> Host: mirrorlist.centos.org
> Accept: */*
>
* Recv failure: Connection reset by remote machine
* Closing connection 0
curl: (56) Recv failure: Connection reset by remote machine

Contents of my CentOS-Base.repo are:

> # CentOS-Base.repo
> #
> # The mirror system uses the connecting IP address of the client and the
> # update status of each mirror to pick mirrors that are updated to and
> # geographically close to the client.  You should use this for CentOS updates
> # unless you are manually picking other mirrors.
> #
> # If the mirrorlist= does not work for you, as a fall back you can try the
> # remarked out baseurl= line instead.
> #
> #
> 
> [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
> 
> #released updates [updates] name=CentOS-$releasever - Updates mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates&infra=$infra
> #baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/
> gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
> 
> #additional packages that may be useful [extras] name=CentOS-$releasever - Extras
> mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras&infra=$infra
> #baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
> 
> #additional packages that extend functionality of existing packages [centosplus] name=CentOS-$releasever - Plus
> mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus&infra=$infra
> #baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/
> gpgcheck=1 enabled=0
> gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

And the contents of /etc/yum.conf are:

[main]
cachedir=/var/cache/yum/$basearch/$releasever
keepcache=0
debuglevel=2
logfile=/var/log/yum.log
exactarch=1
obsoletes=1
gpgcheck=1
plugins=1
installonly_limit=5
bugtracker_url=http://bugs.centos.org/set_project.php?project_id=23&ref=http://bugs.centos.org/bug_report_page.php?category=yum
distroverpkg=centos-release


#  This is the default, if you make this bigger yum won't see if the metadata
# is newer on the remote and so you'll "gain" the bandwidth of not having to
# download the new metadata and "pay" for it by yum not having correct
# information.
#  It is esp. important, to have correct metadata, for distributions like
# Fedora which don't keep old packages around. If you don't like this checking
# interupting your command line usage, it's much better to have something
# manually check the metadata once an hour (yum-updatesd will do this).
# metadata_expire=90m

# PUT YOUR REPOS HERE OR IN separate files named file.repo
# in /etc/yum.repos.d

How can I make yum update work again???

  • maybe you try to set a specific repo server, see here – Zina Nov 8 at 21:05
  • That looks like it might be some sort of local network problem. I am able to access http://mirrorlist.centos.org/?repo=os&arch=x86_64&release=7 without a problem. Do you run into the same problem with any other machines on the same network? – larsks Nov 9 at 2:35
  • @Pathros Trying 2001:1b48:203::4:10... do you intend to connect via IPv6 ? – user3788685 Nov 13 at 21:41

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