trampster's questions

I have a dotnet core project I would like to package as a snap.

However following the "Create your first snap" tutorial and using the dotnet plugin leads to the following error:

The plugin used by part 'my-part' does not support snaps using base 'core18'

What are my options here, am I somehow targeting the wrong version?

Is the dotnet plugin out of date or not supported?

Should I use a different plugin like dump to use already built binaries?

I'm trying to package a mono application to run as a systemd service.

I've followed the instructions here: https://wiki.debian.org/Teams/pkg-systemd/Packaging

I've added dh-systemd (>= 1.5) to my debian control file build depends.

I've added --with=systemd to my rules file as follows:

%:
    dh $@ --with=cli --with=systemd

I've added my service file to my debian folder called mypackage.service with the following contents:

[Unit]
Description=My Service Description
After=network-online.target

[Service]
Type=simple
ExecStart=/usr/bin/mono /usr/lib/mypackage/myservice.exe

[Install]
WantedBy=multi-user.target

However building gives the following lintian warnings and errors:

Now running lintian...
E: mypackage: postrm-does-not-call-updaterc.d-for-init.d-script     etc/init.d/mypackage
W: mypackage: init.d-script-not-marked-as-conffile etc/init.d/mypackage
E: mypackage: init.d-script-not-included-in-package etc/init.d/mypackage

This is confusing me for several reasons

1. These warning are about init.d which is the old system which is replaced by systemd, are these errors and warnings just wrong, does debuild think I'm using init.d because I've configured my package wrong?
2. I was under the impression that the --with=systemd would create these scripts for me.

Update

The generated postrm file is as follows:

#!/bin/sh
set -e
# Automatically added by dh_systemd_start
if [ -d /run/systemd/system ]; then
    systemctl --system daemon-reload >/dev/null || true
fi
# End automatically added section
# Automatically added by dh_systemd_enable
if [ "$1" = "remove" ]; then
    if [ -x "/usr/bin/deb-systemd-helper" ]; then
        deb-systemd-helper mask mypackage.service >/dev/null
    fi
fi

if [ "$1" = "purge" ]; then
     if [ -x "/usr/bin/deb-systemd-helper" ]; then
        deb-systemd-helper purge mypackage.service >/dev/null
        deb-systemd-helper unmask mypackage.service >/dev/null
    fi
fi
# End automatically added section

the generated prerm file is as follows:

#!/bin/sh
set -e
# Automatically added by dh_systemd_start
if [ -d /run/systemd/system ]; then
    deb-systemd-invoke stop mypackage.service >/dev/null
fi
# End automatically added section
# Automatically added by dh_installinit
if [ -x "/etc/init.d/mypackage" ] || [ -e "/etc/init/mypackage.conf" ]; then
    invoke-rc.d mypackage stop || exit $?
fi
# End automatically added section

The package actually installs fine and the service starts correctly. The lintian errors are worrying, and I'd like to get to the bottom of them.

I am the developer of an application found in the Ubuntu repos. A few months ago I released a new version which I packaged and submitted to Debian. The package was accepted and uploaded to experimental because Debian was and still is frozen for release. This package has not been picked up by 13.04 because Ubuntu imports from unstable which still has the old version.

How do I get my package into Ubuntu 13.04, given that Debian is frozen?

Given that ubuntu has a very public goal of reaching 200 million users, how will we know when this goal has been reached?

Is a public and transparent method for counting Ubuntu users being used?

Is there a user count published and updated regularly? If so, where is it?

We know that goals should be measurable and achievable. Leaving aside the question of whether 200 million is achievable, is this goal measurable?

Possible Duplicate:
How to share one pgp-key on multiple machines?

I am about to upgrade my computer to 11.04. But before I do I want to backup my PGP key that I use for signing my ubuntu .deb packages. So that if something goes wrong in the upgrade I don't lose it.

How to I go about backing up my pgp key?

I am packaging a program for ubuntu, And I am getting a lintian warning saying my binary needs a manpage.

How does one go about creating a manpage for a program?

I am creating a deb package for an opensource project I have started called WideMargin

When I try and install my deb package in 10.10 using the Ubuntu Software Center I get the following text on screen.

Sorry, 'widemargin' is not available for this type of computer (i386).

Despite this message it still installs and works fine.

In my control file I have the following line:

Architecture: all

I assumed this would allow it to work on all architectures.

What am I doing wrong?

As this is an open source project please feel free to poke around in my package source and tell me whats wrong.

I ran the following command as requested:

dpkg-deb --control widemargin_1.0.0_all.deb

And it produced the following results:

Package: widemargin
Version: 1.0.0
Architecture: all
Maintainer: Daniel Hughes <[email protected]>
Installed-Size: 4744
Depends: mono-runtime (>= 2.6.7), libgtk2.0-cil (>= 2.12.10), libmono-sqlite2.0-cil (>= 2.6.7)
Section: unknown
Priority: extra
Homepage: https://bitbucket.org/trampster/widemargin
Description: Quick and simple bible software.
 Bible software with a focus on speed and usability.

If I run Ubuntu on a Dell laptop which was sold with Windows, will that void my warranty?

I have a app I am packaging for ubuntu.

I don't like the idea that if included in the ubuntu repositories I will have no control over updating that application. I don't want my users stuck on an out dated version for up to 6 months. I also do not want my users to have to manually add a PPA themselves to get updates as the target user will not have the technical know how to do this.

Is it OK to have my .deb add a PPA on install. So that I can roll out stable updates to my ubuntu users.

Mono 2.8 was released on the 22nd August 2010 this is before ubuntu 10.10 was released however ubuntu 11.04 is shipping with mono 2.6 which is really very old now.

Why is this?

How do I get the CPU temperature?

What are the reasons for Banshee replacing Rhythmbox in Ubuntu 11.04?

I don't want your opinion on which is best nor why. I want to know what the reasoning was behind the decision.

Given that:

• ubuntu has announced they will be moving to unity on the desktop for 11.04 which requires 3d acceleration.
• there is no stable 3d acceleration available in open source graphics drivers like Nouveau,

what will happen when I install ubuntu 11.04 on my machine which has an nvidia card?

• Will ubuntu ship with open source drivers and run in a mode without the 3d animations?
• Will ubuntu ship with the proprietary nvidia drivers making it impossible to run a 'free' desktop.
• Or is there another solution.

What is the process for getting paid apps into the Ubuntu Software Center?

Are there any graphical tools for creating ubuntu/debian packages?

Possible Duplicate:
How do I install and use the latest version of GNOME Shell?

How to a install and use gnome shell in ubuntu 10.10?

Closing the lid on my Dell Studio 15 which is running Ubuntu 10.04 freezes the screen. This is a new problem in Ubuntu 10.04 which did not exist in 9.10

I have tried playing with all the settings in System->Preferences->Screensaver but nothing seems to make any difference. (please note the Power Management settings are accessible from here so I have tried those too.)

I don't need hibernate or suspend. I just want to be able to close the lid, and then open it and still have a working laptop.

Is their a settings somewhere that will make Ubuntu ignore the lid closing?

I am trying to pint to a Brother MFC-7420 from my ubuntu 10.04 machine.

The brother is attached to a windows XP machine and is shared.

This is what I have tried: System->Administration->Printing, Add, Expand Network Printer, Windows Printer via SAMBA, Browse (I can find the printer no problems here), Foward, Choose Driver Dialog, Brother,

My printer is not in this list

So the next thing I tried was to download the printer driver from here http://welcome.solutions.brother.com/bsc/public_s/id/linux/en/download_prn.html

The driver installed fine but my printer still does not appear in the list.

I also tried installing the cups wrapper but that gave the following error.

Restarting Common Unix Printing System: cupsd [ OK ] cp: cannot stat `/usr/share/cups/model/MFC7420.ppd': No such file or directory dpkg: error processing cupswrappermfc7420 (--install): subprocess installed post-installation script returned error exit status 1 Errors were encountered while processing: cupswrappermfc7420

I tried connecting the printer directly but even though I have installed the driver, when I go to printers and click on the printer (it shows up fine as a USB printer) then it say searching for drivers and then gives me a list, this is the same list as before which doesn't have my printer.

It really shouldn't be this hard. on window you don't have to installing anything it just works and the same is true for my brothers Mac.

How do I print to my printer?

What is the best way to get the latest version of mono on ubuntu?

How do I change my primary monitor without using the command line?