On 1/28/19 11:12 AM, David Winsemius wrote:
On 1/26/19 1:50 PM, Rolf Turner wrote:
In the past I have been told, very firmly, by those who are
knowledgeable that when upgrading R I should install the binary R
provided for the Ubuntu OS.
Being a docile and biddable young ( :-) ) fellow, I have tried to do so,
following the instructions made available at:
https://cran.r-project.org/bin/linux/ubuntu/README.html
I have made sure that the line
deb https://cloud.r-project.org/bin/linux/ubuntu bionic-cran35/
is present in my /etc/apt/sources.list file and I then do:
sudo apt-get update
(which seems to go OK) and then:
sudo apt-get install r-base
At this point
(a) I get told “r-base is already the newest version (3.5.2-1bionic).”
(although when I start R it is apparent that I am running version 3.5.1)
(This puzzles me completely.)
(b) I then get asked if I want to continue (anyway); I answer “y” and
then get an error:
Setting up avahi-dnsconfd (0.7-3.1ubuntu1.1) ...
Failed to restart avahi-dnsconfd.service: Unit avahi-daemon.service
is masked.
invoke-rc.d: initscript avahi-dnsconfd, action "restart" failed.
● avahi-dnsconfd.service - Avahi DNS Configuration Daemon
Loaded: loaded (/lib/systemd/system/avahi-dnsconfd.service;
enabled; vendor preset: enabled)
Active: inactive (dead)
(And a bunch more bumff.) Then everything comes to a shuddering halt.
It's quite possible that there is a simple fix, but I have no idea
what this fix might be. (It is also quite possible that something
complicated is needed.)
Can anyone please enlighten me? I have no idea what further
information would be useful but am of course happy to provide (do my
best to provide) any such information that I am asked for.
I am running the Mate Desktop Environment 1.20.1 under Ubuntu 18.04.
Doesn't look to be an R problem. Looks more like an Internet connection
issue.. If you search on "ubuntu avahi-dnsconfd.service", you find
these instructions on how to install Avahi. (Mind you, I don't see that
error myself on 18.04 when trying access CRAN, so this is a bit of a
guess.)
https://askubuntu.com/questions/460371/trouble-using-ssh-and-avahi
You are of course correct; it's not really an R problem. It is a problem
which has an impact on dealing with R. I just hoped that some of the
clever people who subscribe to R-sig-Debian might be able to set me on
the appropriate course.
The problem is with the avahi-dnsconfd.service; it's dead but won't lie
down.
The site that you refer to above appears not to be relevant; I have no
trouble using ssh --- I use it all the time.
When I tried doing the sudo apt-get install thing, in respect of all the
avahi components, I simply ran into the same problem.
I need to (somehow) get rid of the "Avahi DNS Configuration Daemon" and
restart it. Or something like that. But I have no idea how.
Any thoughts?
cheers,
Rolf
--
Honorary Research Fellow
Department of Statistics
University of Auckland
Phone: +64-9-373-7599 ext. 88276
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