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Can we downgrade a patch level in Solaris 2.8? From 108528-26 version to 108528-23?

Posted on 2003-12-01
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Last Modified: 2013-12-21
Hi Guys,
We had 108528-14 in our solaris server. We took the latest patch version for solaris 8 and have installed it in the Netra 1400/1405 machine. We were then in 108528-26. We have some applications running in, which needed to be upgraded, and it needs a min of 108528-23 and as we could only get 108528-26 from net, we did it.

But unfortunately after doing the solaris upgrade we came to know that there is some problem in the 108528-26 version and hence only the 108528-23 version will work for our applications. So is there anyway of downgrading the patch?
Or is there any other way of solving this problem, apart from reinstalling the OS from scratch, which will also include us the trouble of installing all the applications from the scratch. Please let me know.

Thanks.
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Question by:indkish
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shivsa earned 350 total points
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yes u can always downgrade the patch level.

just login as root to console and do not run any other application or login session to it.

patchrm 108528-26 (this will work only if u have choose the option to delete the patch in future.) mean saved the original files.

and then reboot the system.

after reboot
u can add the patch 108528-23.

u would not have much problem.
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by:shivsa
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Dear indkish,

did above clearify your doubts.
if yes, please close the question.
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by:indkish
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Actually I couldnt do what you have suggested, as my people have started a fresh installation before I could do anything. Anyways I will close this question.
I have one more question though. When we do a /usr/platform/sun4u/sbin/prtdiag, it shows the details of my server. Its something like this.

[@imsmgt]/export/home/nortel:=> /usr/platform/sun4u/sbin/prtdiag
System Configuration:  Sun Microsystems  sun4u  (4 X UltraSPARC-II 440MHz)
System clock frequency: 110 MHz
Memory size: 4096 Megabytes

========================= CPUs =========================

                    Run   Ecache   CPU    CPU
Brd  CPU   Module   MHz     MB    Impl.   Mask
---  ---  -------  -----  ------  ------  ----
 0     0     0      440     4.0   US-II    10.0
 0     1     1      440     4.0   US-II    10.0
 0     2     2      440     4.0   US-II    10.0
 0     3     3      440     4.0   US-II    10.0


========================= IO Cards =========================

     Bus   Freq
Brd  Type  MHz   Slot  Name                              Model
---  ----  ----  ----  --------------------------------  ----------------------
 0   PCI    33     0   SUNW,qfe-pci108e,1001             SUNW,pci-qfe
 0   PCI    33     0   SUNW,qfe-pci108e,1001             SUNW,pci-qfe
 0   PCI    33     1   network-SUNW,hme
 0   PCI    33     1   SUNW,qfe-pci108e,1001             SUNW,pci-qfe
 0   PCI    33     1   SUNW,qfe-pci108e,1001             SUNW,pci-qfe
 0   PCI    33     2   network-pci108e,2bad              SUNW,pci-gem
 0   PCI    33     2   SUNW,qfe-pci108e,1001             SUNW,pci-qfe
 0   PCI    33     2   SUNW,qfe-pci108e,1001             SUNW,pci-qfe
 0   PCI    33     3   scsi-glm/disk (block)             Symbios,53C875
 0   PCI    33     3   scsi-glm/disk (block)             Symbios,53C875
 0   PCI    33     3   SUNW,qfe-pci108e,1001             SUNW,pci-qfe
 0   PCI    33     3   SUNW,qfe-pci108e,1001             SUNW,pci-qfe
 0   PCI    33     5   TSI,gfxp                          GFXP

No failures found in System
===========================

I use a Sun Solaris Netra t 1400/1405 server. But this data is not shown when this command is used. But when I use the same command on another server we have, it gives the following result.

[@imsapp]/export/home/nortel:=> /usr/platform/sun4u/sbin/prtdiag
System Configuration:  Sun Microsystems  sun4u Netra t 1400/1405 (4 X UltraSPARC-II 440MHz)
System clock frequency: 110 MHz
Memory size: 4096 Megabytes

========================= CPUs =========================

                    Run   Ecache   CPU    CPU
Brd  CPU   Module   MHz     MB    Impl.   Mask
---  ---  -------  -----  ------  ------  ----
 0     0     0      440     4.0   US-II    10.0
 0     1     1      440     4.0   US-II    10.0
 0     2     2      440     4.0   US-II    10.0
 0     3     3      440     4.0   US-II    10.0


========================= IO Cards =========================

     Bus   Freq
Brd  Type  MHz   Slot        Name                              Model
---  ----  ----  ----------  --------------------------------  ----------------------
 0   PCI    33     On-Board  network-SUNW,hme
 0   PCI    33     On-Board  scsi-glm/disk (block)             Symbios,53C875
 0   PCI    33     On-Board  scsi-glm/disk (block)             Symbios,53C875
 0   PCI    33   pcib slot 2  pci-pci1011,25/pci108e,1000       pci-bridge
 0   PCI    33   pcib slot 2  SUNW,qfe-pci108e,1001             SUNW,pci-qfe
 0   PCI    33   pcib slot 2  SUNW,qfe-pci108e,1001             SUNW,pci-qfe
 0   PCI    33   pcib slot 2  SUNW,qfe-pci108e,1001             SUNW,pci-qfe
 0   PCI    33   pcib slot 2  SUNW,qfe-pci108e,1001             SUNW,pci-qfe

No failures found in System
===========================

Here (if you see the first line of the result) it says Netra t 1400/1405. Someone was suggesting to me that it is a firmware problem, but am not really sure. So can anything be done, any suggestions.

Thanks.
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by:shivsa
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prtdiag command is platform specific.
I would say try using
/usr/platform/`uname -i`/sbin/prtdiag  and check the output.
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by:shivsa
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sorry for typo.
it should be
/usr/platform/`uname -m`/sbin/prtdiag
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by:shivsa
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also check the firmware on both the system with
/usr/platform/`uname -m`/sbin/prtdiag -v | grep OBP
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by:indkish
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the uname -m command gives 'sun4u' for both the servers I have. The problematic server (imsmgt), when grep'd on OBP, gives
  OBP 3.29.0 2000/12/20 18:40   POST 1.2.8 2000/08/22 19:50
and the good server gives (imsapp)
  OBP 3.23.0 1999/06/30 13:53   POST 1.2.7 1999/05/24 17:33

does that say anything? I mean is anything wrong?.
Can anything so wrong at the time of firmware upgrade which can cause this kinda problem!?
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by:shivsa
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nothing is wrong but looks like OBP is upgraded on one the server.

prtdiag is platform specific command and gather its info from OBP, so looks like something got changes in these 2 releases and u can see the same output.
it is nothing problamtic. it is just convention.

Is the OS + patches same on both the server. that also might cause this mismatch.

u can leave it just like this, there is nothing to worry about.
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by:indkish
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Yeah, there were some firmware upgrades on one machine I guess.
We have just re-installed the OS on both the servers, and both have same patches, but still imsmgt doesnt show any sign of 1400/1405! And we cannot know what sort of machine this is with any other command, can we?
And can you please tell me if patchadd command calls pkgadd internally?
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by:shivsa
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uname -i
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by:shivsa
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yes patchadd command calls pkgadd internally in some cases wherever needed.
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by:shivsa
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Dear indkish ,

if u got what u were looking for, then please close this question.

thanks,
Shiv
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by:indkish
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Couldnt test anything you have told, but still closing this question, as my servers were reinstalled and working fine. Thanks for the suggestions.
Kish
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