Difference between revisions of "MySQL Time Zone Tables"

From MythTV Official Wiki
Jump to: navigation, search
(Do this before attempting to install 0.26)
(People loading packages *shouldn't* need to worry. Removed list of distributions.)
Line 5: Line 5:
 
message will apppear in the respective log explaining that.
 
message will apppear in the respective log explaining that.
  
Distributions that '''don't''' have the time zone tables loaded (0.26 packagers may load the tables for you:)
+
This is important for users building from source, users loading MythTV from a package,
<pre>
+
for example Mythbuntu, should expect the tables to be loaded automatically.
Ubuntu 12.04
+
Mythbuntu 12.04
+
Mythbuntu 10.04
+
Fedora 16
+
Fedora 17
+
</pre>
+
 
+
Distributions that '''do''' have the timezone tables loaded:
+
<pre>
+
Gentoo (confirmed for dev-db/mysql-5.1.61)
+
</pre>
+
  
 
To see if the tables are already loaded, enter mysql and type:
 
To see if the tables are already loaded, enter mysql and type:

Revision as of 21:19, 7 October 2012

Starting with MythTV version 0.26, the time zone tables must be loaded in MySQL. This should be done before attempting the upgrade. mythtv-setup and mythbackend will not start without the tables loaded and an error message will apppear in the respective log explaining that.

This is important for users building from source, users loading MythTV from a package, for example Mythbuntu, should expect the tables to be loaded automatically.

To see if the tables are already loaded, enter mysql and type:

SELECT CONVERT_TZ('2012-06-07 12:00:00', 'GMT', 'America/New_York');

If the response looks like:

+--------------------------------------------------------------+
| CONVERT_TZ('2012-06-07 12:00:00', 'GMT', 'America/New_York') |
+--------------------------------------------------------------+
| 2012-06-07 08:00:00                                          |
+--------------------------------------------------------------+

the tables are loaded and no further action is required.

Important.png Note: If the time zone tables are updated, then the procedure below should be repeated.

If the response looks like:

+--------------------------------------------------------------+
| CONVERT_TZ('2012-06-07 12:00:00', 'GMT', 'America/New_York') |
+--------------------------------------------------------------+
| NULL                                                         |
+--------------------------------------------------------------+

then the tables must be loaded.

Assuming the distribution's time zone information is in /usr/share/zoneinfo, type:

mysql_tzinfo_to_sql /usr/share/zoneinfo | mysql -u root -p<yourpassword> mysql

Remove the -p<yourpassword> from the above if you don't have one.

Restart MySQL, and repeat the initial test.

References: