This question was originally posted on DCIM Support by Luis Lopez Borbon on 2018-09-06
Hi DCIM team
I recently upgraded the DCO serve from version 8.1.0 to version 8.2.7 but after the server was rebooted the DCO web client and desktop client were inaccessible. I got access to webmin and the server status showed the “application status is down” (see image attached named Webmin_DCO_Status_issue.jpg).
Also, the server never changed the SW version. After rebooting the DCO was still in version 8.1.0.
Something important to highlight is during the upgrade process a message appeared related to failed repositories, not enough cached and mirrorlist…attached you can find the information. Also, some steps were showed with some instructions or steps to fix the issue but they were no clear for me. I copy only a part of the upgrade log for your reference:
-upgrade: One of the configured repositories failed (Unknown),
-upgrade: and yum doesn't have enough cached data to continue. At this point the only
-upgrade: safe thing yum can do is fail. There are a few ways to work "fix" this:
-upgrade: 1. Contact the upstream for the repository and get them to fix the problem.
-upgrade: 2. Reconfigure the baseurl/etc. for the repository, to point to a working
-upgrade: upstream. This is most often useful if you are using a newer
-upgrade: distribution release than is supported by the repository (and the
-upgrade: packages for the previous distribution release still work).
-upgrade: 3. Run the command with the repository temporarily disabled
-upgrade: yum --disablerepo=<repoid> ...
-upgrade: 4. Disable the repository permanently, so yum won't use it by default. Yum
-upgrade: will then just ignore the repository until you permanently enable it
-upgrade: again or use --enablerepo for temporary usage:
-upgrade: yum-config-manager --disable <repoid>
-upgrade: subscription-manager repos --disable=<repoid>
-upgrade: 5. Configure the failing repository to be skipped, if it is unavailable.
-upgrade: Note that yum will try to contact the repo. when it runs most commands,
-upgrade: so will have to try and fail each time (and thus. yum will be be much
-upgrade: slower). If it is a very temporary problem though, this is often a nice
-upgrade: yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true
-upgrade: Cannot find a valid baseurl for repo: base/7/x86_64
-upgrade: Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was
-upgrade: 14: curl#7 - "Failed to connect to 2001:4178:5:200::10: Network is unreachable"
-upgrade: Removing update repositories
-upgrade: Removing DCO yum repository...
I did a DCO restore but my customer is waiting to upgrade the server. Please your and advises how to upgrade the server.
If you need the complete log file please let me know…
This answer was originally posted on DCIM Support by Jef Faridi on 2018-09-07
It seems during the upgrade process server is unable to access the internet (for package updates) - try this time using the option "Do not download packages from the Internet":
In general, before starting an upgrade it would be good idea to:
check the local disc and make sure it is not getting full and have enough free space (at least 5-10 GB)
take a fresh backup, and save the latest backup files somewhere safe (such as your laptop or network drive).
This comment was originally posted on DCIM Support by Luis Lopez Borbon on 2018-09-07
The DCO server does not have internet connection, for this reason the option “do not download packages from the internet” is checked. Also, the option “No thirdparty RPMs” was selected. See image below with the options selected before start the upgrade process:
According the HD, this is something that I checked before start the upgrade. The HD free space available is 196GB...please see image below:
Please your advises and comments what should I check before starting the upgrade
This comment was originally posted on DCIM Support by Greg Sterling on 2018-09-07
It is also possible you are experiencing an upgrade bug which existed in earlier versions of the webmin tool when upgrades occurred from DCO servers which did not have internet access.
I will email you directly.
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