06-05-2003
Yes, you would have to start from scratch. There is no way to get back to a safe state from the first attempt at the cluster patch when you were not in single user. The second/third attempts would have just totally screwed up the system.
This is something we all learn - if you search the forum for patch and single user, you will find others that have done the same thing. I've done it (after many times of it going just fine it finally bit me). Check out Info Doc 18465 on Sunsolve - here is a small portion of it:
Quote:
Step Two- Avoid More Problems Before Installation
Go to Single User Mode. This avoids so many problems in and of itself, and it the
*FIRST STEP* in the installation stage of ANY patch cluster, kernel, or firmware
patch. Often, people will be in the habit of installing when in multiuser mode, and
claim to have never had problems as a result. I understand that going to
single user mode involves down time for the system, but scheduling down time
for other activities is normal for sys admins, and patch installation should be
included in the mix of things to be done when scheduled downtime is available.
Also, this step is in the README files of every patch and patch cluster I have
spoke of, for good reason. Modifying your live kernel is not a good idea.
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LEARN ABOUT CENTOS
splitdiff
SPLITDIFF(1) Man pages SPLITDIFF(1)
NAME
splitdiff - separate out incremental patches
SYNOPSIS
splitdiff [-a] [-d] [-p n] [-E] [file]
splitdiff {[--help] | [--version]}
DESCRIPTION
If you have a patch file composed of several incremental patches, you can use splitdiff to separate them out. You may want to do this in
preparation for re-combining them with combinediff(1).
The effect of running splitdiff is to separate its input into a set of output files, with no output file patching the same file more than
once.
OPTIONS
-a
Split out every single file-level patch.
-d
Create file names such as a_b.c.patch for a patch that modifies a/b.c.
-p n
Strip the first n components of the pathname to aid comparisons.
-E
Don't use .patch filename extension when writing output files.
--help
Display a short usage message.
--version
Display the version number of splitdiff.
SEE ALSO
combinediff(1), lsdiff(1)
AUTHOR
Tim Waugh <twaugh@redhat.com>
Package maintainer
patchutils 25 May 2011 SPLITDIFF(1)