Today my Ubuntu updated Mono to 4.2.1.102. It will not allow a certain program I absolutely need to run. How can I down-grade it to 4.0.5.1? I have tried...
sudo apt-get install mono-complete=4.0.5.1
That doesn't work.
Edit your /etc/apt/sources.list.d/mono-xamarin.list and change:
deb http://download.mono-project.com/repo/debian wheezy main
to:
deb http://download.mono-project.com/repo/debian wheezy/snapshots/4.0.5.1 main
That will pin it to version 4.0.5.1.
FYI: Make sure that you do not have any alpha/beta repos for mono in any of your /etc/apt/sources/list.d/xxxxx.list files.
Basic Steps to Downgrade:
sudo apt-get remove mono-complete
# Edit your mono-xamarin.list and pin it to the version of your choice.
sudo apt-get update
sudo apt-get install mono-complete
Accessing older releases If for some reason you want to pin an older
version of Mono rather than updating to the latest, you can modify the
Debian repository to “wheezy/snapshots/X.XX.X” instead of “wheezy”.
For example, “wheezy/snapshots/3.10.0” will lock you to that version.
These snapshots will cease receiving updates as soon as the next major
Mono version gets uploaded - for example, as soon as Mono 3.12 gets
uploaded, 3.10 will never receive updates.
On RPM distributions, force the package version in your package
manager - all older versions are published in the YUM metadata and
should be available.
Ref: http://www.mono-project.com/docs/getting-started/install/linux/#accessing-older-releases
Ref: Versions available:
http://download.mono-project.com/repo/debian/pool/main/m/mono/
If, like me, you followed the official guide: https://www.mono-project.com/download/stable/ then you would have added an apt key and created
/etc/apt/sources.list.d/mono-official-stable.list
You can keep the key, but remove the file above using sudo rm -r /etc/apt/sources.list.d/mono-official-stable.list
Then make sure you follow the best answer above by editing the mono-xamarin.list file for the version you want and remove the version of mono you have.
Then apt update, then install mono-complete. An easy way to know you are correctly downloading and compiling a different version is that apt will prompt you asking if you want to download the files, and the size will be different.
Hope this helps someone, this last step made it work for me.
My system is Ubuntu 18.04.
Related
I need to test if some firmware is compatible with older ethtool versions.
The machine I am using currently have ethtool version 5.16, but I need to install ethtool version 5.13
I got the compressed file from https://mirrors.edge.kernel.org/pub/software/network/ethtool/ and have used tar -zxvf https... to extract the files. This extracts a directory with the contents shown below:
After reading the INSTALL file, I ran ./configure but it gave me the following error: configure: error: The pkg-config script could not be found or is too old. Make sure it is in your PATH or set the PKG_CONFIG environment variable to the full path to pkg-config
This meant that I could not run make or make install and thus am stuck.
After speaking to colleagues, the solution was found:
apt-get install -y pkg-config. Thereafter the following package was also needed: apt-get install -y libmnl-dev
Simple installed it with ./configure, make and make install and saw the ethtool version was as desired.
I'm using Ubuntu 14.04 and I am updating the rpmbuild spec file of an application that now uses Qt.
The packages that I need are the following:
sudo apt-get build-essential
sudo apt-get install mesa-common-dev -y
sudo apt-get install libglu1-mesa-dev -y
sudo apt-get qt5-default
sudo apt-get qtwebengine5-dev
I know the spec file has "BuildRequires" and "Requires" dependency tags...any help in writing this as well as some examples would be helpful. I have a working spec file I just need to add the dependencies.
I think there is some confusion here. spec files are used to generate rpm files. However Ubuntu uses deb files.
Supposing you really want to create an rpm; then you need to know this:
BuildRequires
these packages are required for building the rpm. Typically you will need build-essential and the '*-dev` packages for building your application
Requires
these packages are required upon installation for your application to work; mostly you don't need your build-tools anymore, but you still need the qt5-default for example.
PS: on a little side note I might be one of the only people in the world building deb packages using spec files with a special conversion script https://bitbucket.org/klaussfreire/spec2deb/src/default/ but I wouldn't really recommend that.
What does the yum and -y means
yum install httpd -y
new to fedora. please guide me.
the above code will install Apache server in fedora
yum is a software package manager that installs, updates, and removes packages on RPM-based systems. It automatically computes dependencies and figures out what things should occur to install packages. yum makes it easier to maintain groups of machines without having to manually update each one using rpm.
-y means that we did't want to gave yes to install any package (here httpd)
httpd installs apache web server
Thanks for Support and advice
I installed MonoDevelop using following commands:
sudo add-apt-repository ppa:ermshiperete/monodevelop
sudo apt-get update
sudo apt-get install monodevelop-current
because I wanted latest version.
sudo apt-get install monodevelop
results in installing 4.x version which I wasn't interested in.
Now I can launch application via terminal using:
/opt/monodevelop/bin/monodevelop-launcher.sh
but "monodevelop" command results in following information:
The program 'monodevelop' is currently not installed. You can install it by typing:
sudo apt-get install monodevelop
and creating monodevelop.desktop file doesn't result in having program icon in launcher. Any ideas what I should do to be able to run MonoDevelop using "monodevelop" command?
I installed MonoDevelop using following commands:
sudo add-apt-repository ppa:ermshiperete/monodevelop
Do you realize that when adding a repository, you're trusting this user (what he decides to package in his repository), and that the version you get is the one that he himself alone decided to package?
I recommend you to add the repository of the official developers/packagers instead. Follow the instructions here (but uninstall any old packages first).
I just installed graphite on OSX, and managed to get the web app running this command:
python /opt/graphite/bin/run-graphite-devel-server.py /opt/graphite
I'll eventually move it to ubuntu, but in the mean time, some fonts are enormous:
Any thoughts on how to fix this?
I chased this down to an issue with the newest version of cairo. I removed cairo and installed 1.12.6. I posted the instructions here gist.github.com/relaxdiego/7539911
Its the cairocffi that handles the fonts and other display parameters. Sometimes installing only cairo doesn't work. In the above case you should always troubleshoot by ensuring proper and complete installation of the cairocffi package. By complete I mean all the dependencies for cairocffi.
The frequently required are:
1. libffi-devel (for rpm based operating systems)
sudo yum install libffi-devel
2. libffi-dev (for debian based operating systems)
sudo apt-get install libffi-dev
3. parse_lookup
sudo pip install parse_lookup
This is the Github page for cairocffi.