Dear Sir/Madam,

I've just applied a kernel patch #127111-10 at our Solaris 10 server
which runs Veritas Storage Foundation for Oracle with root mirrored
and encapsulated. The command I used was "# patchadd 127111-10". The
server has been running that kernel patch for 2 days. Unfortunately,
we've been asked to back it out for trouble-shooting purposes. How
does one back out the patch to the previous version of 127111-09?
Can I just do "# patchrm 127111-10" according to the readme. Is there
anything we need to be aware of before and after running the
patchrm ? Down the road, is it ok to reapply the 127111.10 again ?

Thanks,

Bill

underh20.scubadiving@gmail.com <underh20.scubadiving@gmail.com> wrote:


Yes, patchrm is the way to uninstall a patch. If you do
"patchrm 127111-10", you will not neccessarily go to 127111-09.
Instead, you'll find that you go the last installed version
before 127111-10 - let's say you have revs 05, 08 and 10 installd.
If you'd do the patchrm, you'll be at rev 08.

If you need to go to rev 09, you'll have to patchadd that revision
afterwards.

Michael

On Apr 16, 7:09 am, underh20.scubadiv...@gmail.com wrote:
How
Assuming the -09 revision was on the box before the -10 then you'll
just need to do a patchm then a reconfig boot (as it's a kernel patch).

In article <2c946582-0c64-449a-8133-97903dac87ef@x19g2000prg.googlegroups.com>,
underh20.scubadiving@gmail.com writes:
Backing out kernel patches is not risk-free.
I would ensure you have a backup to recover
from (and which you know how to reinstall
from) if the system no longer works.

This is where live-upgrade really wins -- you
would just reboot the previous boot environment.

Can't comment on what effect Veritas encapsulated
root will have.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]