03-04-2015
Roadmap to upgrade from RHEL 5.8 to 6.6
Hello,
We are thinking about upgrading our RHEL platform from 5.8 to 6.6 but we've been advised we need to build new servers from scratch. For us this approach is not feasible as it requires new hardware and our servers are 1-year old.
I was wondering if somebody has done or planned for a similar upgrade and if they are willing to share their roadmap upgrade.
Thanks and good day
Fabio Gil
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LEARN ABOUT DEBIAN
sbuild-update
SBUILD-UPDATE(1) Debian sbuild SBUILD-UPDATE(1)
NAME
sbuild-update - update, upgrade, and clean an sbuild chroot with apt-get
SYNOPSIS
sbuild-update [-h|--help] [-V|--version] [--arch=architecture] [-u|--update] [-g|--upgrade] [-d|--dist-upgrade] [-c|--clean] [-a|--auto-
clean] [-r|--autoremove] CHROOT1 [CHROOT2 [CHROOTn...]]
sbuild-update -k|--keygen
(DEPRECATED) sbuild-upgrade [-h|--help] [-V|--version] CHROOT1 [CHROOT2 [CHROOTn...]]
(DEPRECATED) sbuild-distupgrade [-h|--help] [-V|--version] CHROOT1 [CHROOT2 [CHROOTn...]]
(DEPRECATED) sbuild-clean [-h|--help] [-V|--version] [-c|--clean] [-a|--autoclean] [-r|--autoremove] CHROOT1 [CHROOT2 [CHROOTn...]]
DESCRIPTION
sbuild-update runs apt-get inside the specified chroot performing update, upgrade, dist-upgrade, clean, autoclean, and/or autoremove
depending on the options specified on the command line.
sbuild-upgrade, sbuild-distupgrade, and sbuild-clean, are deprecated. They now simply run sbuild-update with the appropriate options
(--upgrade or --dist-upgrade for sbuild-upgrade or sbuild-distupgrade respectively) along with whatever arguments were passed in the
scripts.
OPTIONS
Actions
-h, --help
Display this manual.
-V, --version
Print version information.
--arch=architecture
Update chroot for the architecture specified.
-u, --update
Perform an apt-get update.
-g, --upgrade
Perform an apt-get upgrade.
-d, --dist-upgrade
Perform an apt-get dist-upgrade.
-c, --clean
Perform an apt-get clean.
-a, --autoclean
Perform an apt-get autoclean.
-r, --autoremove
Perform an apt-get autoremove.
-k, --keygen
Generate a GPG public/private key pair for self-signing local apt archives, used for installation of dependency packages. Note that
this requires a significant amount of entropy (randomness) and may hang on systems with poor entropy sources, such as headless sys-
tems without direct user input. In this situation, it is advisable to create the key on a trusted local system, and copy the files
to the build system by hand from /var/lib/sbuild/apt-keys/.
Chroot selection
CHROOT The chroot to use. Note that 'o', 's', 't', 'u' and 'e' may be used as abbreviations for 'oldstable', 'stable', 'testing', 'unsta-
ble' and 'experimental', respectively.
EXAMPLES
To update the unstable chroot:
% sbuild-update --update unstable
To upgrade the unstable chroot:
% sbuild-update --upgrade unstable
To clean the unstable chroot:
% sbuild-update --clean unstable
To perform an update, dist-upgrade, clean, autoclean, and autoremove for the unstable chroot:
% sbuild-update -udcar unstable
AUTHORS
Roger Leigh.
Andres Mejia.
COPYRIGHT
Copyright (C) 2006-2009 Roger Leigh <rleigh@debian.org>.
Copyright (C) 2010 Andres Mejia <mcitadel@gmail.com>.
SEE ALSO
sbuild(1), sbuild-apt(1),
Version 0.63.2 18 Aug 2012 SBUILD-UPDATE(1)