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Old 03-07-2007, 09:49 PM   #1
TheB2B
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Daylight Savings Time Change


Do we need to worry about adjusting time settings due to the DST change in America?

If so how?
 
Old 03-07-2007, 10:05 PM   #2
macemoneta
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If you are applying regular maintenance, then you already have the timezone update. If not,

yum -y update tzdata

Consider applying regular updates with:

yum -y update

That way, you will always have the latest fixes for your system.
 
Old 03-08-2007, 10:00 AM   #3
PTrenholme
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Quote:
Originally Posted by macemoneta
<snip>
Consider applying regular updates with:

yum -y update<snip>
Perhaps yum -y upgrade might be a better choice. That, I beleive, applies both updates and upgrades.
 
Old 03-08-2007, 10:13 AM   #4
macemoneta
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The yum 'upgrade' option is depreciated; it used to perform an 'update' but also handle obsoletes. Now the standard 'update' option handles obsoletes as well. The 'upgrade' option is scheduled to be removed in a future release, and remains available only for compatibility at this time. See 'man yum'.
 
Old 03-08-2007, 10:32 AM   #5
macemoneta
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Just a further comment... Most people don't want to use obsoletes processing, and I'll give you an example why.

Let's say that the Fedora team decides that they will be changing their default email client from Evolution to Thunderbird. They flag the rpm to indicate that "Thunderbird obsoletes Evolution". They keep Evolution as an optional component.

If you perform a 'yum update', your copy of Evolution will be updated to the latest version, as you expect.

If you perform a 'yum --obsoletes update' or 'yum upgrade', your copy of Evolution will be removed and Thunderbird will be installed. You will not have an opportunity to copy your email or contact list. Most likely, you will need to manually reinstall Evolution to recover.

I hope that clarifies the difference between the options.
 
Old 03-09-2007, 08:51 PM   #6
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When I attempt to run yum I get the following results.

Quote:
Setting up Update Process
Setting up Repos
base 100% |=========================| 1.1 kB 00:00
updates-released 100% |=========================| 951 B 00:00
Reading repository metadata in from local files
base : ################################################## 2622/2622
updates-re: ################################################## 910/910
No Packages marked for Update/Obsoletion
Should I surmize my version is out of date?
How would I find out or is there something else I should be looking for or at?
 
Old 03-09-2007, 10:38 PM   #7
macemoneta
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You can check with the following command:

Code:
# /usr/sbin/zdump -v /etc/localtime | grep 2007
/etc/localtime Sun Mar 11 06:59:59 2007 UTC = Sun Mar 11 01:59:59 2007 EST isdst=0 gmtoff=-18000
/etc/localtime Sun Mar 11 07:00:00 2007 UTC = Sun Mar 11 03:00:00 2007 EDT isdst=1 gmtoff=-14400
/etc/localtime Sun Nov 4 05:59:59 2007 UTC = Sun Nov 4 01:59:59 2007 EDT isdst=1 gmtoff=-14400
/etc/localtime Sun Nov 4 06:00:00 2007 UTC = Sun Nov 4 01:00:00 2007 EST isdst=0 gmtoff=-18000
If you see the March and November entries, you are up to date. If you see the April and October entries, you must be running an old (no longer supported) version of Fedora. In that case, follow these instructions (using your timezone).
 
Old 03-11-2007, 07:46 AM   #8
TheB2B
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Run # /usr/sbin/zdump -v /etc/localtime | grep 2007

Results show I have DST update installed and running.

Thanks for you help.
 
  


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