How to backout of Solaris 10 kernel patch - Newbie question

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

[email]underh20.scubadiving@gmail.com[/email] <underh20.scubadiving@gmail.com> wrote:

[color=blue]
> 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.[/color]

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

[email]underh20.scubadiving@gmail.com[/email] <underh20.scubadiving@gmail.com> wrote:

[color=blue]
> 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.[/color]

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[color=blue]
> 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 ?[/color]

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).

On Apr 16, 7:09 am, underh20.scubadiv...@gmail.com wrote:
How[color=blue]
> 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 ?[/color]

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).