Able to ping but not to run yum install commands

arielma · 04-08-2019, 06:45 AM

Hi
I'm able to ping to external websites, but for some reason, the sudo yum install command is not working due to connectivity issues. did anyone face it?

dc.901 · 04-08-2019, 07:27 AM

Which OS? If RH, may be due to subscription?
What is the exact output of yum command?
What is output of:

Code:

cat /etc/*release
yum repolist
yum install <package name>

arielma · 04-08-2019, 12:17 PM

Code:

$ sudo yum install vim
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
^CCould not retrieve mirrorlist http://mirrorlist.centos.org/?releas...os&infra=stock error was
14: curl#56 - "Callback aborted"
^CCould not retrieve mirrorlist http://mirrorlist.centos.org/?releas...us&infra=stock error was
14: curl#56 - "Callback aborted"
epel/x86_64/metalink                                                                |  25 kB  00:00:00
Could not retrieve mirrorlist http://mirrorlist.centos.org/?releas...as&infra=stock error was
14: curl#7 - "Failed connect to mirrorlist.centos.org:80; Operation now in progress"
Could not retrieve mirrorlist http://mirrorlist.centos.org/?releas...es&infra=stock error was
14: curl#7 - "Failed connect to mirrorlist.centos.org:80; Operation now in progress"
 * epel: www.mirrorservice.org
http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: [Errno 12] Timeout on http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: (28, 'Connection timed out after 30002 milliseconds')
Trying other mirror.
http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: [Errno 12] Timeout on http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: (28, 'Connection timed out after 30002 milliseconds')
Trying other mirror.
http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: [Errno 12] Timeout on http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: (28, 'Connection timed out after 30002 milliseconds')
Trying other mirror.
http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: [Errno 12] Timeout on http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: (28, 'Connection timed out after 30002 milliseconds')
Trying other mirror.
http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: [Errno 12] Timeout on http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: (28, 'Connection timed out after 30002 milliseconds')
Trying other mirror.
http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: [Errno 12] Timeout on http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: (28, 'Connection timed out after 30002 milliseconds')
Trying other mirror.
^Chttp://vault.centos.org/7.0.1406/os/x86_64/repodata/repomd.xml: [Errno 14] curl#56 - "Callback aborted"
Trying other mirror.


 One of the configured repositories failed (CentOS-7.0.1406 - Base),
 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=C7.0.1406-base ...

     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 C7.0.1406-base
        or
            subscription-manager repos --disable=C7.0.1406-base

     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=C7.0.1406-base.skip_if_unavailable=true

failure: repodata/repomd.xml from C7.0.1406-base: [Errno 256] No more mirrors to try.
http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: [Errno 12] Timeout on http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: (28, 'Connection timed out after 30002 milliseconds')
http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: [Errno 12] Timeout on http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: (28, 'Connection timed out after 30002 milliseconds')
http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: [Errno 12] Timeout on http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: (28, 'Connection timed out after 30002 milliseconds')
http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: [Errno 12] Timeout on http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: (28, 'Connection timed out after 30002 milliseconds')
http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: [Errno 12] Timeout on http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: (28, 'Connection timed out after 30002 milliseconds')
http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: [Errno 12] Timeout on http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: (28, 'Connection timed out after 30002 milliseconds')
http://vault.centos.org/7.0.1406/os/...ta/repomd.xml: [Errno 14] curl#56 - "Callback aborted"
$ Connection reset by 10.0.0.12 port 22

scasey · 04-08-2019, 12:36 PM

Repeating #2

Code:

cat /etc/*release
yum repolist

please.
And please use code tags when posting output. It makes it much easier to read.

arielma · 04-08-2019, 01:50 PM

Please tell me if more info is needed

scasey · 04-08-2019, 02:15 PM

Ok. The errors are because you're configured to use the repositories for centos version 7.0.1406, and those repositories are no longer available.

You are at centos version 7.6.1810, so you need to update yum to use the repositories for that version.
Unfortunately, I'm not sure how to do that, but now that we've identified the root cause of the problem, hopefully someone with that knowledge will tell us both how to fix that problem.

sgrlscz · 04-09-2019, 07:37 AM

Try doing:

Code:

yum clean all

then try the previous yum commands again. The results of both the yum install and the yum repolist commands indicated an error communicating with the mirrorlist server. The yum repolist command indicates yum was attempting to use IPv6 for communication. You can force IPv4, by adding the following to the [main] section of /etc/yum.conf:

Code:

ip_resolve=4

scasey · 04-09-2019, 12:48 PM

Quote:

Originally Posted by sgrlscz

Try doing:

Code:

yum clean all

then try the previous yum commands again. The results of both the yum install and the yum repolist commands indicated an error communicating with the mirrorlist server. The yum repolist command indicates yum was attempting to use IPv6 for communication. You can force IPv4, by adding the following to the [main] section of /etc/yum.conf:

Code:

ip_resolve=4

The error is because the mirrorlist url is no longer valid...the version is no longer supported. The link gives a 404 error when attempted manually.
What/where is the version on the OPs client set for yum? It's not the version they're actually running.

sgrlscz · 04-09-2019, 01:56 PM

Quote:

Originally Posted by scasey

The error is because the mirrorlist url is no longer valid...the version is no longer supported. The link gives a 404 error when attempted manually.
What/where is the version on the OPs client set for yum? It's not the version they're actually running.

The mirrorlist URL is http://mirrorlist.centos.org/?releas...os&infra=stock, which is valid, and gives a simple text file. Each of the core CentOS repos has a similar mirrorlist URL, and they are all valid. The links giving the 404 errors are for vault.centos.org.

What would typically happen is that yum would connect to the mirrorlist URL and retrieve the current list and save it (e.g., some place like /var/cache/yum/x86_64/7/base/mirrorlist.txt). Then use that list to find the actual repo. If it fails to retrieve the mirrorlist.txt from mirrorlist.centos.org, it looks for a mirrorlist.txt for the repo in the yum cache, and continues with that.

In this case, the very first errors are that it cannot retrieve the current mirrorlist. The subsequent errors related to the vault.centos.org all look like the type of errors you see when the mirrorlist.txt in the cache is out of date.

So, if you do a 'yum clean all', there won't be anything in the cache to find after the initial failures.

arielma · 04-09-2019, 02:20 PM

I also tried to install 2 different version..

sgrlscz · 04-09-2019, 02:26 PM

What errors are you getting?

arielma · 04-10-2019, 02:56 PM

apparently, it's related to some security configuration (it's a company laptop). eventually, I managed to work and run sudo commands thought vagrant

scasey · 04-10-2019, 03:05 PM

Quote:

Originally Posted by arielma

apparently, it's related to some security configuration (it's a company laptop). eventually, I managed to work and run sudo commands though vagrant

That should have been noted in your original post, at which time I (and probably others) would have referred you to your company's IT department.

arielma · 04-10-2019, 03:22 PM

Sorry for not mentioning it... will keep in mind for the next time