10-25-2010
RHEV-M (piece one of a two part product) was originally created by Qumranet, along with the proprietary mgmt protocol it uses for kvm. It's written as a .Net application (requiring W2K3r2 and SQL Server/Express, etc.). The RHEV-H side is designed to be a non-seen Linux distro running kvm. The idea is to shield all of the RHEV-H under the controls of RHEV-M.
Red Hat originally looked at existing ways to run the .Net app... but that would involve things .Net on Linux (e.g. Mono) and Red Hat feels that's too risky. So the plan (AFAIK) is to rewrite RHEV-M as a JBoss Java app (sorry, still two pieces, you'll need a JBoss platform).
AFAIK, there's no way currently to get at any piece of RHEV-M or RHEV-H (for that matter). RHEV-H is an appliance style implementation... if you've ever seen this, that means the resulting platforms is done by unrolling files... the result is considered to be volatile. It's not well documented. It makes rolling in a kernel parameter (for example and from own experience) rather difficult since you have to unroll things, change things and roll things back up.
RHEV-H is a fairly typical appliance style Linux deployment, if you've ever used one. Just might be a bit cumbersome for users that have never done anything like that.
And, remember that it requires a SEPARATE subscription. It's NOT RHEL. It's considered a totally different thing.
If I were a CentOS user today, I'd just use plain ole standard kvm. If you HAVE to mimic Red Hat exactly, you'll need to wait until Red Hat makes those pieces available (if they haven't already) and wait for CentOS to figure out the best way to deploy it.
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LEARN ABOUT DEBIAN
spacewalk-channel
SPACEWALK-CHANNEL(8) Red Hat, Inc. SPACEWALK-CHANNEL(8)
NAME
spacewalk-channel - Subscribe to or unsubscribe system from channel.
SYNOPSIS
spacewalk-channel [options]
DESCRIPTION
spacewalk-channel allows you to subscribe to and unsubscribe from specified channels via the command line. A visit to the Red Hat Network
(or Spacewalk) website isn't required.
OPTIONS
-l, --list
Print a list of channel(s) that you are currently subscribed to.
-L, --available-channels
Print a list of all available child channels.
-a, --add
You are subscribing system to given channel(s). You have to specify --user and --password.
-r, --remove
You are unsubscribing system to given channel(s). You have to specify --user and --password.
-u, --user
Your username used to register the system with and for Red Hat Network, RHN Satellite or Spacewalk. If you do not enter this option
and it is required, you will be prompted.
-p, --password
The password associated with the username specified with the --user option. This is an unencrypted password. If you do not enter
this option and it is required, you will be prompted.
-c, --channel
Label of channel you want to subscribe to or unsubscribe from. Can be specified multiple times.
-v, --verbose
Print out successfull action.
-h, --help
Show a help message and exit.
NOTE
The addition and removal of channels is mutually exclusive, please use the command twice.
EXAMPLES
Subscribe to two channels:
spacewalk-channel --add -c rhn-tools-rhel-i386-server-5 -c rhel-i386-server-vt-5 --user username --password password
Unsubscribe from channel:
spacewalk-channel --remove -c rhn-tools-rhel-i386-server-5 -c rhel-i386-server-vt-5 --user username --password password
List subscribed channels:
spacewalk-channel --list
SEE ALSO
rhnplugin(8), rhn_register(8), up2date(5).
AUTHORS
Miroslav Suchy <msuchy@redhat.com>
BUGS
Report bugs to <http://bugzilla.redhat.com>.
COPYRIGHT
Copyright (C) 2009-2010 Red Hat, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
Linux 2010 August 30 SPACEWALK-CHANNEL(8)