Yesterday I upgraded Fedora 24 to 25 reading below article that I used last time. [1]
Unfortunately I have faced several issues after that. I want to take note for that here.
There are some articles about Upgrading Fedora [2][3]. Later I want to check these articles.
But today I want to write especially about a issue “Can not boot”, that I solved today.
The situation is
I have used official docker RPM package (package name is docker-engine).
Because the Fedora docker RPM package (package name is docker) is older version. It is Fedora official, but unofficial package for the vendor Docker. I could not use some new features.
But another package on Fedora needs Fedora docker as the dependency.
So, I have to remove official docker, and install unofficial docker (= Unofficial for the vendor Docker).
$ sudo dnf remove docker-engine
Then I got an error.
$ sudo dnf install docker ... Failed to obtain the transaction lock (logged in as: root) ...
The solution was [5].
In my case with same problem is solved by doing following steps: 1. dnf clean all 2. Restart the system.
However I restarted the system. It started and freezed in login processing page.
I typed “Ctrl, Alt + BS key” to change to CUI console.
And I got below error.
[!!!!!!] Failed to load SELinux policy, freezing.
I needed to login with single user mode, and SELinux off.
Seeing this article [6], ran below operations.
One possibility for that issue is from upgrading to 25. And saw article [2]. Then ran, and rebooted. And still does not work.
$ sudo touch /.autorelabel
Another possibility for the issue is that Docker was using SELinux related packages as the dependency.
Finally I disabled SELinux. and reboot. It works.
# vi /etc/sysconfig/selinux SELINUX=enforcing => SELINUX=disabled
I always want to see boot log on Fedora Linux booting page. I want to look for the settings for that.
