Re: Down grade from 9.21.UC2 to 7.30.UC6

Yes Mark, this is a very good idea. We have been practicing this. One more advantage is, if we are using the environment variables in the configuration files for the applications like below PRD_INFORMIXDIR /usr/informix DEV_INFORMIXDIR /xxx/xxxxxxx we don't need to modify these files every time we change or modify the directory if we make a link. Thanks Chavan Koya ----- Original Message ----- From: "Mark D. Stock" <mdstock@mydassolutions.com> To: "Richard Spitz" <Richard.Spitz@ana.med.uni-muenchen.de> Cc: <informix-list@iiug.org> Sent: Wednesday, July 30, 2003 7:34 AM Subject: Re: Down grade from 9.21.UC2 to 7.30.UC6 > Richard Spitz wrote: > > tbarth@barth-rz.de schrieb: > > > > > >>could your please explain "point the binaries to > >>the 7.3 version" ! How does this work ? What to do ? > > > > > > This simply means that you have to use the 9.21 binaries > > to do the reversion (onmode -b), then use the 7.3 binaries > > to re-start the informix engine. The easiest way to have > > several versions of informix is to install them in different > > directories and point the INFORMIXDIR environment variable > > to the one you want to use. Of course, you also have to adjust > > your PATH and LD_LIBRARY_PATH accordingly. It would cause > > havoc if you just set INFORMIXDIR to the 7.3 directory tree > > and leave PATH and LD_LIBRARY_PATH still pointing to the > > 9.21 binaries. > > An even simpler method is to use /usr/informix (or whatever) in all your > variables, then create it as a link to your current version directory. > It's simpler because you don't have to change all your variables, just > drop and recreate the link when changing version. > > Cheers, > -- > Mark. > > +----------------------------------------------------------+-----------+ > | Mark D. Stock mailto:mdstock@MydasSolutions.com |//////// /| > | Mydas Solutions Ltd http://MydasSolutions.com |///// / file://| > | +-----------------------------------+//// / ///| > | |We value your comments, which have |/// / ////| > | |been recorded and automatically |// / /////| > | |emailed back to us for our records.|/ ////////| > +----------------------+-----------------------------------+-----------+ > > sending to informix-list > sending to informix-list