I am not so into Linux and I have the following problem.
I was installing RedMine on a remote Ubuntu Server via SSH, following the official tutorial: http://www.redmine.org/projects/redmine/wiki/HowTo_Install_Redmine_on_Ubuntu_step_by_step
The installation process is pretty simple but when I was performing this statment:
sudo apt-get install redmine redmine-mysql
I lost connection...so I come back into my server reconnecting to it...so I perform again this command but now I am obtaining this error message:
*** System restart required ***
Last login: Fri Nov 11 11:57:11 2016 from 91.253.121.46
root@Betrivius-VPS:~# apt-get install redmine redmine-mysql
E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
root@Betrivius-VPS:~#
Reading online it seems that it means that the prvious installation process is not ended.
So I don't know if I can retrieve it in some way or abort it. When I log into my remote server appear the message System restart required. I don't know if this message is causated by this situation or not and I don't know if restart my server will solve this issue.
So what is the best solution for this problem?
