Mdthbs

I downloaded the rpm for dos2unix and installed (on RHEL 6, 64 bit) like this

[root@xilinx Downloads]# rpm -ivh dos2unix-5.3.3-5.ram0.98.src.rpm 

   1:dos2unix               warning: user mockbuild does not exist - using root

warning: group mockbuild does not exist - using root

warning: user mockbuild does not exist - using root

warning: group mockbuild does not exist - using root

########################################### [100%]

[root@xilinx Downloads]# 

But as can be seen I am getting these warnings. Why?

How do I know that my installation of dos2unix was succesful ?

Update

[root@xilinx Downloads]# rpm -ivh dos2unix-5.3.3-5.ram0.98.src.rpm

   1:dos2unix               warning: user mockbuild does not exist - using root

warning: group mockbuild does not exist - using root

warning: user mockbuild does not exist - using root

warning: group mockbuild does not exist - using root

########################################### [100%]

[root@xilinx Downloads]# 

[root@xilinx Downloads]# 

[root@xilinx Downloads]# 

[root@xilinx Downloads]# 

[root@xilinx Downloads]# rpm -ql dos2unix

package dos2unix is not installed

[root@xilinx Downloads]# 

I then tried

[root@xilinx acme]# yum install mock

Loaded plugins: refresh-packagekit, rhnplugin

There was an error parsing the RHN proxy settings.

RHN support will be disabled.

Error: Cannot retrieve repository metadata (repomd.xml) for repository: InstallMedia. Please verify its path and try again

[root@xilinx acme]# 

Find out if the rpm's files have been installed:

rpm -ql dos2unix

Regarding your installation, it looks good, the rpm expects a group (mockbuild) and a user that you do not have. Should be fixed by the rpm responsible, but these are warnings only and your installation most probably worked fine.

Any time you install an RPM you can check if it's installed using RPM's query switch. You can find our 2 useful pieces of info about an installed package.

However before I get into all that notice the name of the .rpm you installed.

dos2unix-5.3.3-5.ram0.98.src.rpm

Binary RPMS vs. Source RPMs

This is a source RPM, which isn't built software (binary), rather this is a package that you can use to rebuild/recompile the normal .rpm file from. You typically do this using the rpmbuild command:

$ rpmbuild --rebuild dos2unix-5.3.3-5.ram0.98.src.rpm

You can also tell the difference if you list the contents of the package prior to installing it.

$ rpm -qpl dos2unix-5.3.3-5.ram0.98.src.rpm

dos2unix-5.3.3.tar.gz

dos2unix.spec

Notice this .rpm includes a .spec file? That's the "recipe" file for how to compile and install the dos2unix software which is also included in the file, dos2unix-5.3.3.tar.gz.

You can read more about source RPMs (aka. src.rpm or .srpm) files on the rpm.org website in this article titled: Source Package Files and How To Use Them.

So instead you should be installing a package named like this if you truly want to install dos2unix:

• dos2unix-5.3.3-5.ram0.98.i386.rpm


• dos2unix-5.3.3-5.ram0.98.x86_64.rpm


• dos2unix-5.3.3-5.ram0.98.i686.rpm


• dos2unix-5.3.3-5.ram0.98.noarch.rpm

NOTE: The rest of this post shows how you'd find binary RPM's such as these install on your system.

rpm -qi <...pkg name..>

This will give you standard information about a given package. Version, where it was built, when it was built etc.

$ rpm -qi dos2unix

Name        : dos2unix

Version     : 6.0.3

Release     : 2.fc19

Architecture: x86_64

Install Date: Sat 07 Dec 2013 09:02:59 PM EST

Group       : Applications/Text

Size        : 184775

License     : BSD

Signature   : RSA/SHA256, Thu 14 Mar 2013 05:25:00 AM EDT, Key ID 07477e65fb4b18e6

Source RPM  : dos2unix-6.0.3-2.fc19.src.rpm

Build Date  : Fri 22 Feb 2013 10:50:05 AM EST

Build Host  : buildvm-20.phx2.fedoraproject.org

Relocations : (not relocatable)

Packager    : Fedora Project

Vendor      : Fedora Project

URL         : http://waterlan.home.xs4all.nl/dos2unix.html

Summary     : Text file format converters

Description :

Convert text files with DOS or Mac line endings to Unix line endings and

vice versa.

rpm -ql <..pkg name..>

You can get the contents of an RPM using the rpm -ql <..pkg name..>.

$ rpm -ql dos2unix

/usr/bin/dos2unix

/usr/bin/mac2unix

/usr/bin/unix2dos

/usr/bin/unix2mac

/usr/share/doc/dos2unix-6.0.3

/usr/share/doc/dos2unix-6.0.3/COPYING.txt

/usr/share/doc/dos2unix-6.0.3/ChangeLog.txt

...

Verifying a package installation

There is a lesser though still useful switch which will allow you to verify the installation of a package. This switch will qualify the files on disk to make sure that their permissions are set correctly, the same as when it was installed, as well as perform a checksum (MD5SUM) of each file to make sure it hasn't been tampered with or changed.

$ rpm -V -v dos2unix

.........    /usr/bin/dos2unix

.........    /usr/bin/mac2unix

.........    /usr/bin/unix2dos

.........    /usr/bin/unix2mac

.........    /usr/share/doc/dos2unix-6.0.3

.........  d /usr/share/doc/dos2unix-6.0.3/COPYING.txt

.........  d /usr/share/doc/dos2unix-6.0.3/ChangeLog.txt

.........  d /usr/share/doc/dos2unix-6.0.3/NEWS.txt

...

You should only see dots in the left column. If you see letters such as S or M then you know the size or permissions are inconsistent.

excerpt from rpm man page

   S file Size differs

   M Mode differs (includes permissions and file type)

   5 digest (formerly MD5 sum) differs

   D Device major/minor number mismatch

   L readLink(2) path mismatch

   U User ownership differs

   G Group ownership differs

   T mTime differs

   P caPabilities differ

The ‘mock’ module is responsible to build the source RPMs (SRPMs) under a chroot environment and uses the ‘mockbuild’ user. If the mockbuild user does not exist while installing the source RPM, you will receive the ‘Warning: user mockbuild does not exist. using root‘ error message. In order to fix the warning message, install the ‘mock’ module:

# yum install mock

and create the ‘mockbuild’ user

# useradd -s /sbin/nologin mockbuild

Once done, you should be able to install the required tool under the mockbuild user.

from this source

If you want to install a source rpm you need first to build it:

# rpmbuild --rebuild dos2unix-5.3.3-5.ram0.98.src.rpm

The mock package is not required to do this, so you can ignore the warnings:

warning: user mockbuild does not exist - using root

warning: group mockbuild does not exist - using root

The rpmbuild will create a binary rpm. The location may vary, eg /usr/src/redhat/RPMS/ or ~/rpmbuild/RPMS (the output of rpmbuild should help with this). The RPM will be in a subdirectory representing your architecture (e.g. x86_64/). You can install normally this rpm:

# rpm -Uvh /usr/src/redhat/RPMS/x86_64/dos2unix-5.3.3-5.x86_64.rpm

If there were no errors, you should have the package installed:

# rpm -q dos2unix

dos2unix-5.3.3-5