[Astlinux-users] zoneinfo files

[Darrick H. <dha...@dj...>]

As you probably know several areas recently changed their start of 
daylight savings time to supposedly help conserve energy.  We won't go 
into that whole discussion, but suffice it to say that we've had to make 
some changes.  I'll provide a little history on the zoneinfo files and 
how they tie into Astlinux along with the TZ variable, then give you a 
link where you can grab some replacement files.

Astlinux is built on uclibc.  uclibc it self does not use the 
information in the zoneinfo files usually found in /usr/share/zoneinfo 
and linked from /etc/localtime.  Asterisk however DOES read these files 
directly rather than access this data via the *libc.  This is how we 
ended up with two variables in rc.conf referring to timezones.  TZ sets 
the timezone for the system, TIMEZONE sets it for Asterisk.

If you don't mind the time on your voicemails being off by the daylight 
savings time offset, you don't need to do anything.

For the foreseeable future, the TZ variable will need to be adjusted as 
mentioned in my previous email.  Again, this is for the system time.

The TIMEZONE variable can stay as is, but the zoneinfo files need to be 
updated.  I have a tar.gz file available which has updated timezone 
data.  This has not been fully tested, but it works on my test system.  
I will be creating new images based on 0.4 branch which will have the 
updated files.  You can either update to these images or grab the file 
and overwrite the files on your current image.  I only recommend doing 
this if you really know what you are doing.

http://www.djhsolutions.com/astlinux/tzdata.tar.gz

To overwrite the current files, you will need to mount your system 
read-write.
Remove the existing files in /usr/share/zoneinfo
Replace them with the files in that tar.gz file.

Darrick

-- 
Darrick Hartman
DJH Solutions, LLC
http://www.djhsolutions.com