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See also Download Dependencies for a RPM
The best way for individual packages name of which you know is utility yumdownloader from yum-utils. Th elatter is a collection of utilities and examples for the yum package manager. It is actually a valuable RPM to study on its own right.
It includes utilities by different authors that make yum easier and more powerful to use. These tools include: debuginfo-install, package-cleanup, repoclosure, repodiff, repo-graph, repomanage, repoquery, repo-rss, reposync, repotrack, verifytree, yum-builddep, yum-complete-transaction, yumdownloader, yum-debug-dump and yum-groups-manager.
On RHEL they are usually installed by default. If not to install use the command
yum -y install yum-utils
Now use the yumdownloader command which is a program for downloading RPMs from Yum repositories. Type the following command to download httpd rpm file:
[0]root@sandbox: # yumdownloader perl-XML-Simple Loaded plugins: product-id, refresh-packagekit, rhnplugin This system is receiving updates from RHN Classic or RHN Satellite. perl-XML-Simple-2.18-6.el6.noarch.rpm
If packages that you need download are result of update process then you need to use yum plugin yum-downloadonly
yum update yum-downloadonly
This will add two options to yum commands
usage is
yum install perl-XML-Simple -y --downloadonly --downloaddir=/home
You can also get RPMs during normal update or install process. Before installation, downloaded RPMs are stored in the dir /var/yum/cache
So you can go there and simply copy the rpms after yum downloaded them and waiting your permission to install them.
Unfortunately they are deleted after installation...
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Method 1 – Download A RPM Package With All Dependencies Using "Downloadonly" plugin
We can easily download any RPM package with all dependencies using "Downloadonly" plugin for yum command.
To install Downloadonly plugin, run the following command as root user.
yum install yum-plugin-downloadonlyNow, run the following command to download a RPM package.
yum install --downloadonly <package-name>By default, this command will download and save the packages in /var/cache/yum/ in rhel-{arch}-channel/packages location. However, you can download and save the packages in any location of your choice using "–downloaddir" option.
yum install --downloadonly --downloaddir=<directory> <package-name>Example:
yum install --downloadonly --downloaddir=/root/mypackages/ httpdSample output:
Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: centos.excellmedia.net * epel: epel.mirror.angkasa.id * extras: centos.excellmedia.net * updates: centos.excellmedia.net Resolving Dependencies --> Running transaction check ---> Package httpd.x86_64 0:2.4.6-40.el7.centos.4 will be installed --> Processing Dependency: httpd-tools = 2.4.6-40.el7.centos.4 for package: httpd-2.4.6-40.el7.centos.4.x86_64 --> Processing Dependency: /etc/mime.types for package: httpd-2.4.6-40.el7.centos.4.x86_64 --> Processing Dependency: libaprutil-1.so.0()(64bit) for package: httpd-2.4.6-40.el7.centos.4.x86_64 --> Processing Dependency: libapr-1.so.0()(64bit) for package: httpd-2.4.6-40.el7.centos.4.x86_64 --> Running transaction check ---> Package apr.x86_64 0:1.4.8-3.el7 will be installed ---> Package apr-util.x86_64 0:1.5.2-6.el7 will be installed ---> Package httpd-tools.x86_64 0:2.4.6-40.el7.centos.4 will be installed ---> Package mailcap.noarch 0:2.1.41-2.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved ======================================================================================================================================= Package Arch Version Repository Size ======================================================================================================================================= Installing: httpd x86_64 2.4.6-40.el7.centos.4 updates 2.7 M Installing for dependencies: apr x86_64 1.4.8-3.el7 base 103 k apr-util x86_64 1.5.2-6.el7 base 92 k httpd-tools x86_64 2.4.6-40.el7.centos.4 updates 83 k mailcap noarch 2.1.41-2.el7 base 31 k Transaction Summary ======================================================================================================================================= Install 1 Package (+4 Dependent packages) Total download size: 3.0 M Installed size: 10 M Background downloading packages, then exiting: (1/5): apr-1.4.8-3.el7.x86_64.rpm | 103 kB 00:00:01 (2/5): apr-util-1.5.2-6.el7.x86_64.rpm | 92 kB 00:00:01 (3/5): mailcap-2.1.41-2.el7.noarch.rpm | 31 kB 00:00:01 (4/5): httpd-tools-2.4.6-40.el7.centos.4.x86_64.rpm | 83 kB 00:00:01 (5/5): httpd-2.4.6-40.el7.centos.4.x86_64.rpm | 2.7 MB 00:00:09 --------------------------------------------------------------------------------------------------------------------------------------- Total 331 kB/s | 3.0 MB 00:00:09 exiting because "Download Only" specifiedNow go the location that you specified in the above command. You will see there the downloaded package with all dependencies. In my case, I have downloaded the packages in /root/mypackages/ directory.
Let us verify the contents.
ls /root/mypackages/Sample output:
apr-1.4.8-3.el7.x86_64.rpm apr-util-1.5.2-6.el7.x86_64.rpm httpd-2.4.6-40.el7.centos.4.x86_64.rpm httpd-tools-2.4.6-40.el7.centos.4.x86_64.rpm mailcap-2.1.41-2.el7.noarch.rpmAs you see in the above output, the package httpd has been downloaded with all dependencies.
Please note that this plugin is applicable for "yum install/yum update" and not for "yum groupinstall". By default this plugin will download the latest available packages in the repository. You can however download a particular version by specifying the version.
Example:
yum install --downloadonly --downloaddir=/root/mypackages/ httpd-2.2.6-40.el7Also, you can download multiple packages at once as shown below.
yum install --downloadonly --downloaddir=/root/mypackages/ httpd vsftpdDownload – Free Guide: "10 Easy Ways to Restore Your Linux System"Method 2 – Download A RPM Package With All Dependencies Using "Yumdownloader" utility
Yumdownloader is a simple, yet useful command-line utility that downloads any RPM package along with all required dependencies in one go.
Install Yumdownloader using the following command as root user.
yum install yum-utilsOnce installed, run the following command to download a package, for example httpd.
yumdownloader httpdTo download packages with all dependencies, use –resolve option:
yumdownloader --resolve httpdBy default, Yumdownloader will download the packages in the current working directory.
To download packages along with all dependencies to a specific location, use –destdir option:
yumdownloader --resolve --destdir=/root/mypackages/ httpdOr
yumdownloader --resolve --destdir /root/mypackages/ httpdSample output:
Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: centos.excellmedia.net * epel: epel.mirror.angkasa.id * extras: centos.excellmedia.net * updates: centos.excellmedia.net --> Running transaction check ---> Package httpd.x86_64 0:2.4.6-40.el7.centos.4 will be installed --> Processing Dependency: httpd-tools = 2.4.6-40.el7.centos.4 for package: httpd-2.4.6-40.el7.centos.4.x86_64 --> Processing Dependency: /etc/mime.types for package: httpd-2.4.6-40.el7.centos.4.x86_64 --> Processing Dependency: libaprutil-1.so.0()(64bit) for package: httpd-2.4.6-40.el7.centos.4.x86_64 --> Processing Dependency: libapr-1.so.0()(64bit) for package: httpd-2.4.6-40.el7.centos.4.x86_64 --> Running transaction check ---> Package apr.x86_64 0:1.4.8-3.el7 will be installed ---> Package apr-util.x86_64 0:1.5.2-6.el7 will be installed ---> Package httpd-tools.x86_64 0:2.4.6-40.el7.centos.4 will be installed ---> Package mailcap.noarch 0:2.1.41-2.el7 will be installed --> Finished Dependency Resolution (1/5): apr-util-1.5.2-6.el7.x86_64.rpm | 92 kB 00:00:01 (2/5): mailcap-2.1.41-2.el7.noarch.rpm | 31 kB 00:00:02 (3/5): apr-1.4.8-3.el7.x86_64.rpm | 103 kB 00:00:02 (4/5): httpd-tools-2.4.6-40.el7.centos.4.x86_64.rpm | 83 kB 00:00:03 (5/5): httpd-2.4.6-40.el7.centos.4.x86_64.rpm | 2.7 MB 00:00:19Let us verify whether packages have been downloaded in the specified location.
ls /root/mypackages/Sample output:
apr-1.4.8-3.el7.x86_64.rpm apr-util-1.5.2-6.el7.x86_64.rpm httpd-2.4.6-40.el7.centos.4.x86_64.rpm httpd-tools-2.4.6-40.el7.centos.4.x86_64.rpm mailcap-2.1.41-2.el7.noarch.rpmUnlike "Downloadonly" plugin, Yumdownload can download the packages related to a particular group.
yumdownloader "@Development Tools" --resolve --destdir /root/mypackages/Personally, I prefer Yumdownloader over "Downloadonly" plugin for yum. But, both are extremely easy and handy and does the same job.
January 18, 2011 | dsumsky.blogspot.com
How many times I was in a situation I needed to update a server with RHEL installed but I wasn't at site and I didn't have a way how to reboot the server after installing a new kernel or glibc package on it reliably? Yes, I have a test environment and I'm testing the updates on it but many installations are too critical to just run yum update -y and then shutdown -r now. On top of that, there are well known Murphy's laws which are able to damage more than we are able to imagine.Instead of remote resolution of why the server is suddenly unresponsive I'm trying to prepare some offline update archive (if there isn't an update server available but this is another situation) and then during a site visit to apply it.
As I'm talking about RHEL I'm using YUM or Yellowdog Updater Modified for it. This tool is able to download updates locally without installing them if we have RHEL 5.x system. It only requires to install a download plugin which is part of yum-downloadonly package. Try to install it with
yum install yum-downloadonly
The next lines contain common commands that I use for downloading updates:
yum install PACKAGE_NAME.rpm -y --downloadonly
yum update -y --downloadonlyIf we have a RHEL 4.x server we don't have this package and we need to install another package called yum-tools which contains similar tool yumdownloader.
yum install yum-tools -y
Here it is how to use the tool
yumdownloader PACKAGE_NAME.rpmIf we wan't to download all the available updates with yumdownloader we need to get a list of all packages with yum check-update and then to pass it to yumdownloader. You can do it from shell with sed, cut or awk commands or what would you prefer:
for PKG in `yum check-update | cut -d' ' -f1`; do yumdownloader $PKG doneFor more detailed description of the tools and their parameters have a look at their man pages.
In case you want to update your Linux system to the latest OS patch level and you want minimize your downtime, you could work with the `yum –downloadonly` option. At least, the time for downloading all your required packages can be saved.
Just install the yum-utils and the yum-downloadonly package, in case not already done.
# yum install yum-utils
# yum install yum-downloadonly
Now you can start your download operation, with or without Kernel packages.
# yum –exclude=kernel* update –downloadonly
# yum update –downloadonly
Your downloaded packages will end up per default in the following directory/subdirectories if not otherwise specified.
# cd /var/cache/yum/x86_64/
Now you can stop your applications and update your OS, with or without Kernel, whatever is desired.
# yum –exclude=kernel* update
# yum update
# reboot
Ready.
Advantage
The advantage of the –downloadonly option is simply that you minimize your downtime. Of course, it depends on the number of packages that have to be updated, and it also depends on your network bandwidth, but you could save from several minutes to hours.
Conclusion
The –downloadonly option is pretty useful, when you want to minimize your downtime.
Cheers, William ([email protected])
Method # 2: yum-utils.noarch Package
yum-utils is a collection of utilities and examples for the yum package manager. It includes utilities by different authors that make yum easier and more powerful to use. These tools include: debuginfo-install, package-cleanup, repoclosure, repodiff, repo-graph, repomanage, repoquery, repo-rss, reposync, repotrack, verifytree, yum-builddep, yum-complete-transaction, yumdownloader, yum-debug-dump and yum-groups-manager.
# yum -y install yum-utils.noarch
Now use the yumdownloader command which is a program for downloading RPMs from Yum repositories. Type the following command to download httpd rpm file:
# yumdownloader httpd
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