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
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