rpmbuild creating some extra script in the tmp file - linux

I am building rpm in RHEL-6 using rpmbuild command as
rpmbuild -bb rpm.spec
This command creates a temporary script which it executes while making rpm. Now the issue is that rpmbuild is creating some extra section in this tmp file which is causing rpm creation to fail. This extra section is mentioned neither in the build script of rpm nor in the rpm.spec file. I am not sure why this is happening. Can someone please suggest me what I might be missing?

Related

Modify rpm using rpmrebuild

I have a rpm created for dev environment and CONTAINS a configuration file that points to dev. Now I have to create the rpm for another environment for which I need to replace just one file in the SOURCES folder and update the reference in .spec and rebuild it. Issue is that I don't have the .spec file that I used to create the rpm for dev.
So upon searching, came across rpmrebuild and I was able to see the .spec file in the editor.
When I give rpmrebuild command, the spec file opens in the editor.
Here's the small snippet from the file
/root/rpmbuild/SOURCES /root/rpmbuild/SOURCES
%files
%attr(0755, root, root) "/opt/**{replace/with/newfile/path**}"
But updating that that gives me - File not found: /root/.tmp/rpmrebuild.2345/work/root/opt/{path/to/newfile}
I don't know if I have to use rpmrebuild command with any --params in order to replace the file in the SOURCES and its reference in the .spec. There are no other changes to be made.
Please guide.
Note: I am a unix novice
I presume you do not have the src.rpm for this package. If you do, then it's very easy, simply install that with rpm -ihv /path/to/src/rpm as you would do with any RPM file. The contents, unless specified otherwise, will be extracted to ~/rpmbuild. The spec will be under ~/rpmbuild/SPECS, the sources under ~/rpmbuild/SOURCES, etc.
If you do not have the src.rpm but only the RPM itself, install the rpmrebuild package from the EPEL repos and then:
$ rpmrebuild -e -p /path/to/package
It will open the spec in your default editor. Edit it and save the spec wherever you want.
Then, assuming you have all the needed source files (declared in the spec using the SourceN directives), you can call:
$ rpmbuild -bb /path/to/spec
To rebuild the RPM from the edited spec.

Can we execute unix command inside %install section?

I have created an rpm without source using the binary file I had been provided. In a nutshell, I am trying to automate a silent install of sybase client via an rpm. However I need help whether we can put the following silent install command in the %install section of the spec file -
setup.bin –f <responseFileName> -i silent -DAGREE_TO_SYBASE_LICENSE=true -DRUN_SILENT=true
Any help will be much appreciated.
If you want a script to be executed when you install a package, it must be put in the %post section. According to your comment, this is what you did.
The problem is that if you run the install script that way, rpm will not be able to track the installed files. It will not know that those files belong to the package, will not remove them when you uninstall the rpm, will not handle updates properly, etc. You will have a broken rpm.
If you can't build a proper rpm, just use a simple install script that does what you want.

How to build a RPM package with custom changes

I'm working on Linux.
I have installed a ruby rpm on my system sing following command,
rpm –ivh zenith_ruby_1.8.6-1.0-2.el5.src.rpm
Now i have added some debugging statments in the source files of this rpm
and i want to rebuild this rpm with my changes in source file.
I tried using following command
rpmbuild -ba rpmbuild/SPECS/zenith_ruby-1.8.6-p369.spec
But execution of this commands leads to overwriting the source file that cause removal of by changes from source file.
Is there any way to re-build with our changes in source file?
You should make your changes a patch that gets applied during the build process.
See this tutorial for instructions
I found the solution for above problem.
We need to execute following command to build already installed RPM :
rpmbuild -bc --short-circuit rpmbuild/SPECS/zenith_ruby-1.8.6-p369.spec

Why does my hand created deb package fails at install with "unable to create" on files?

I made a perl script that creates a deb binary package from scratch.
I created the data, control, etc.
But when I run dpkg -i on my deb package it complains that it is unable to files from data.
Example:
unable to create '.dpkg-new'(while processing ''): No such file or directory.
I have downloaded some .deb packages to look at and they do not use the preinst script to create the directory structure.
I am thinking I am doing something wrong, I consider having to create my own directories in preinst but it does not seem right... perhaps I am missing something?
Do I have to create directories where my files from data will be copied in the preinst sh, or should dpkg do it and I am doing something wrong?
I had the same problem in a Ruby script I wrote.
I was generating a list of files to pass to tar when building the data.tar.gz archive. When I ungzip and untared the archive manually it would deflate fine, but dpkg would fail.
It turns out that the list of files must also include each directory to create as well.
Note that when I created data.tar.gz I built it with nearly the same options as dpkg-deb/build.c does in the dpkg-1.15.8.11 source.
execlp(TAR, "tar", "-cf", "-", "--format=gnu", "--null", "-T", "-", "--no-recursion", NULL);
Instead I used
IO.popen("gnutar -czf - --format=gnu -T - --no-recursion", "r+")
In addition to what #Arrowmaster said, check the http://www.debian.org/doc/debian-policy/ for some detailed explanation of the files. After you build the package itself, you can check it with lintian tool to see if there is anything obvious you might have missed.
If any one looks for a solution to the problem:
"Build a deb package from an rpm spec file."
Look here http://www.deepnet.cx/debbuild/
I have made my own perl build script much simple then the mentioned one so I can easily maintain it.
Some useful knowledge gained in the process:
0. the deb is an ar archive that contains 3 files, the order of the files is important.
1. the scripts from control.tar.gz must be made executable.
2. it is good to have a preinstall script to make directories if dirs do not exist.
3. sometimes dpkg decides to unzip your zips (this happened if the zip was the only file in the data.tar.gz) so check for that in an postinstall script.
4. when you tar.gz some files be sure to chmod to the dir that contains the directory structure for your tar.
You should not attempt to manually create a .deb binary package by hand. The Debian New Maintainers' Guide covers how to get started creating a Debian package using the correct tools.
Your hand created package may look correct to you but because it is not installing it is obviously flawed in either a minor way that you have not noticed or in a more serious way that is not visible to you (for example most people don't realize a .deb is actually an ar archive).
There are lots of reasons for this. You really need to run:
dpkg -i -D1110 mydeb.deb
And post the result to have any hope of someone being able to solve the problem.

How to delete some extra folder using rpm

I am using Fedora 10, I have created an rpm file for my software. It removes all the files from the installed directory. If i use yum remove command or rpm -e command. but after installation my application automatically creates some extra folders in home directory. If I uninstall my application then file from home directories do not get removed. So what I have to do. Is there anything that I have to write in my spec file?
You need to create a post-uninstall script inside your rpm.
The %postun Script
The %postun script executes after the package has been removed. It is the last chance for a package to clean up after itself. Quite often, %postun scripts are used to run ldconfig to remove newly erased shared libraries from ld.so.cache.
See: Maximum RPM: Taking the Red Hat Package Manager to the Limit

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