This is great. Feels like winning an oscar ....
" I would like to thank my wife, the crew, and all these people that
help me make this movie.. "
** Original Message **
> We are planning to fully install Digital Unix v4.0E (for the first
> time in our lifes) on a mashine which is now runing osf1 v3.2. The
> system must work every day 24 hours a day. I have some questions to ask:
>
> 1) Can we keep both versions of os, so if something goes wrong to be able
> to boot the old os from the old hard disk? (We have a brand new hard disk
> which we are planning to install the new os on it).
>
> 2) We must do a firmware update before installing the new os. In case
> everything goes wrong with the new instalation, will we be able to boot
> the system with the old os? (We will have the firmware updated but the os
> will be the same)
First question :
^^^^^^^^^^^^^^^^
There is no problem switching between versions
** tom_at_radar.tu-graz.ac.at wrote :
Sure you can. You can just install the new OS version on a separate
external harddisk. If you have problems you can always shutdown and
boot from the old harddisk. Switching between version is only a matter
of
>>> boot dka200
or
>>> boot dka300
where 200 means SCSI ID 2 and 300 means SCSI ID 3 etc.
** alan_at_nabeth.cxo.dec.com wrote :
Yes. If you have to fall back to the previous version, you'll
want to fsck or verify the file system to make sure there aren't
been any subtle file system changes between the two versions.
If you use AdvFS for the user file systems use advscan to create
the directory/link structure for the new version.
Second question:
^^^^^^^^^^^^^^^^
Seems ok too
** alan_at_nabeth.cxo.dec.com wrote :
You should be able to. But it is something you want to test
before it becomes critical. Firmware upgrades shouldn't
affect older versions, but I doubt there tested back many
versions.
One firmware update is notable. The current firmware of the
KZPSA SCSI adapter is A11, which fixes a data corruption bug
from A10. Versions before V4.0D, needed a special patch to work
with A11. If you have a KZPSA you'll want to check the compabibility
of the newer firmware with your older version.
** dgerontopoulos_at_the.forthnet.gr wrote:
Yes, you will. Even if you have problem with the firmawre level and the
old os version you can make a backup of your old firmware version prior
the update and reinstall it if there is a problem.
Many thanks to :
^^^^^^^^^^^^^^^^
belonis_at_dirac.phys.washington.edu
tom_at_radar.tu-graz.ac.at
alan_at_nabeth.cxo.dec.com
dgerontopoulos_at_the.forthnet.gr
george_at_esa.nascom.nasa.gov (Efxaristo poli giorgo)
jgormley_at_grizzly.scu.edu.su
James.Elier_at_alcoa.com
matth_at_itsa.ucsf.edu
Received on Mon Feb 22 1999 - 12:27:16 NZDT