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Operating Systems Linux Red Hat Downgrade kernel version with yum Post 302540724 by verdepollo on Thursday 21st of July 2011 12:13:40 PM
Old 07-21-2011
Yes, you can install as many kernels as you want, but only use one at a time.

Code:
yum install kernel-2.6.x.x.x.x.x

Then edit grub.conf and choose the kernel you want to use on startup.

You'll need to reboot your computer for the new kernel to be loaded.
 

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yumdownloader(1)														  yumdownloader(1)

NAME
yumdownloader - download RPM packages from Yum repositories SYNOPSIS
yumdownloader [options] package1 [package2...] DESCRIPTION
yumdownloader is a program for downloading RPMs from Yum repositories. GENERAL OPTIONS
-h, --help Help; display a help message and then quit. --destdir DIR Specify a destination directory for the download. Defaults to the current directory. --urls Instead of downloading RPMs, list the URLs that would be downloaded. --resolve When downloading RPMs, resolve dependencies and also download the required packages. --source Instead of downloading the binary RPMs, download the source RPMs. --archlist=ARCH1[,ARCH2...] Limit the query to packages of given architecture(s). Valid values are all architectures known to rpm/yum such as 'i386' and 'src' for source RPMS. Note that repoquery will now change yum's "arch" to the first value in the archlist. So "--archlist=i386,i686" will change yum's canonical arch to i386, but allow packages of i386 and i686. ADDITIONAL OPTIONS
Yumdownloader inherits all other options from yum. See the yum(8) man page for more information EXAMPLES
Download the kernel RPM to /var/tmp: yumdownloader --destdir /var/tmp kernel List the URL for the kernel and kernel-smp RPMs: yumdownloader --urls kernel kernel-smp FILES
As yumdownloader uses YUM libraries for retrieving all the information, it relies on YUM configuration for its default values like which repositories to use. Consult YUM documentation for details: /etc/yum.conf /etc/yum/repos.d/ /var/cache/yum/ SEE ALSO
yum.conf (5) http://yum.baseurl.org/ AUTHORS
See the Authors file included with this program. BUGS
There are of course no bugs, but should you find any, you should first consult the FAQ section on http://yum.baseurl.org/wiki/Faq and if unsuccessful in finding a resolution contact the mailing list: yum-devel@lists.baseurl.org. To file a bug use http://bugzilla.redhat.com for Fedora/RHEL/Centos related bugs and http://yum.baseurl.org/report for all other bugs. Gijs Hollestelle 28 November 2005 yumdownloader(1)
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