Removing the patches doesn't seems to work

Hi,

I was trying to do an experiment. I patched one of our server because to comply with the DST 2007 Changes.

Afterwards I removed the patches. I'm expecting that it will revert the changes but it didn't. I was thinking if i had to reboot the machine to see the changes. If it is, then why the effect occurs after I patch the server with no reboot at all?

Can someone shed a light on this?

Before:

#zdump -v `echo $TZ` | grep 2007

US/Central Tue Feb 6 14:36:11 2007 UTC = Tue Feb 6 08:36:11 2007 CST isdst=0

US/Central Sun Apr 1 07:59:59 2007 UTC = Sun Apr 1 01:59:59 2007 CST isdst=0

US/Central Sun Apr 1 08:00:00 2007 UTC = Sun Apr 1 03:00:00 2007 CDT isdst=1

US/Central Sun Oct 28 06:59:59 2007 UTC = Sun Oct 28 01:59:59 2007 CDT isdst=1

US/Central Sun Oct 28 07:00:00 2007 UTC = Sun Oct 28 01:00:00 2007 CST isdst=0

After:

#zdump -v `echo $TZ` | grep 2007

US/Central Wed Feb 7 06:59:28 2007 UTC = Wed Feb 7 00:59:28 2007 CST isdst=0

US/Central Sun Mar 11 07:59:59 2007 UTC = Sun Mar 11 01:59:59 2007 CST isdst=0

US/Central Sun Mar 11 08:00:00 2007 UTC = Sun Mar 11 03:00:00 2007 CDT isdst=1

US/Central Sun Nov 4 06:59:59 2007 UTC = Sun Nov 4 01:59:59 2007 CDT isdst=1

US/Central Sun Nov 4 07:00:00 2007 UTC = Sun Nov 4 01:00:00 2007 CST isdst=0

[1375 byte] By [roanmda] at [2007-11-26 17:35:27]
# 1
After the patch was removed, did the old /usr/share/lib/zoneinfo files get returned? Can you compare them with other patched/unpatched machines? That's usually the source of the information. What is the value of TZ that you're testing?-- Darren
Darren_Dunhama at 2007-7-9 0:03:28 > top of Java-index,Solaris Operating System,Solaris 10 Features...
# 2

Thanks for time Darren.

Those files/timestamp was unchanged eventhough I removed the patches. Unfortunately it did not. Btw, the TZ im working with is from CST to DST.

PATCHED

#ls -lrt

total 30

-rw-r--r--1 rootbin 125 Jul 10 2000 Samoa

-rw-r--r--2 rootbin 1017 Mar 8 2006 Pacific-New

-rw-r--r--2 rootbin 1017 Mar 8 2006 Pacific

-rw-r--r--3 rootbin 877 Mar 8 2006 Mountain

-rw-r--r--1 rootbin 1267 Mar 8 2006 Eastern

-rw-r--r--1 rootbin 1279 Mar 8 2006 Central

-rw-r--r--1 rootbin 856 Mar 8 2006 Alaska

-rw-r--r--1 rootbin 811 Mar 8 2006 Michigan

-rw-r--r--2 rootbin 869 Mar 8 2006 Indiana-Starke

-rw-r--r--1 rootbin 130 Mar 8 2006 Hawaii

-rw-r--r--3 rootbin 606 Mar 8 2006 East-Indiana

-rw-r--r--1 rootbin 130 Mar 8 2006 Arizona

-rw-r--r--2 rootbin 858 Mar 8 2006 Aleutian

UNPATCHED

# ls -lrt

total 30

-rw-r--r--3 rootbin 125 Jan 21 2005 Samoa

-rw-r--r--4 rootbin 1017 Jan 21 2005 Pacific-New

-rw-r--r--4 rootbin 1017 Jan 21 2005 Pacific

-rw-r--r--5 rootbin 877 Jan 21 2005 Mountain

-rw-r--r--2 rootbin 811 Jan 21 2005 Michigan

-rw-r--r--3 rootbin 549 Jan 21 2005 Indiana-Starke

-rw-r--r--3 rootbin 130 Jan 21 2005 Hawaii

-rw-r--r--3 rootbin 1267 Jan 21 2005 Eastern

-rw-r--r--5 rootbin 286 Jan 21 2005 East-Indiana

-rw-r--r--3 rootbin 1279 Jan 21 2005 Central

-rw-r--r--3 rootbin 130 Jan 21 2005 Arizona

-rw-r--r--3 rootbin 858 Jan 21 2005 Aleutian

-rw-r--r--2 rootbin 856 Jan 21 2005 Alaska

roanmda at 2007-7-9 0:03:28 > top of Java-index,Solaris Operating System,Solaris 10 Features...
# 3

One more thing, i read the README.txt of these patches and said that i have to reboot my machine after installing these patches. But it is strange that the effect has take place without rebooting the server. I'm thinking if a reboot will do the trick. What do you think?

109809-02

108993-52

roanmda at 2007-7-9 0:03:28 > top of Java-index,Solaris Operating System,Solaris 10 Features...
# 4
A reboot restarts all processes. Processes that were running before the patch was installed will not see the changes. Any new programs you run (like zdump to test), will see the changes.-- Darren
Darren_Dunhama at 2007-7-9 0:03:28 > top of Java-index,Solaris Operating System,Solaris 10 Features...