[plug] red hat upgrade

Jon Miller jlmiller at mmtnetworks.com.au
Sun Jan 1 19:24:37 WST 2006


Sorry about the html I had it off and it looks like the gremlins are at play again.
Actually the MySQL db is used for a few apps and a logging facility.
I really wouldn't mind moving the db to a Debian or Suse distro.  As this was the last of 4 RH servers to be migrated, the person that was working with me never got around to doing this server.  As for the apps there is a custom Time and Billing program and MailWatch and I have plans for other apps to run on it.  Since it sits behind our Firewall it do not run anything else and it has a single NIC on it.  So Maybe I'll just build either a Suse Server or Debian server and then copy the data to the new server for testing before going into production.

Jon

>>> craig at postnewspapers.com.au 8:59:53 pm 1/01/2006 >>>
Jon Miller wrote:
> Like to know if it's possible to update rh7.2 to latest version of fedora
> without breaking apps like mysql and a few modules that runs on this server
> (it our database server) and it's really come to the end of it use by 
date.

The best answer there is "maybe, try it on a clone install and see". 
glibc is usually fairly backward compatible, as is the plain C ABI, so 
if it's a MySQL install you did yourself you may be OK. It'll depend a 
lot on what dependencies MySQL and any associated modules have.

I would suggest, though, that you try moving your database to a new 
version of MySQL while you're at it. This would simplify the upgrade 
(well, depending again on what those "few modules" you didn't really 
describe are and need) and get you a more modern, nicer DB server. MySQL 
4.x is VERY compatible with older versions (IIRC it even has 
binary-compatible drop-in replacement v3 emulation client libraries) and 
should be fuss-free to upgrade to unless you have a customised or 
seriously extended version.

In fact, you might well want to consider clean-installing the server and 
migrating the apps across to the new server and MySQL install. This 
permits a much lower-stress migration, as the new system can be tested 
while the old is still running, and lets you make other changes that 
might've been put off due to downtime concerns.

Anyway, to be able to give any more useful answer than "try it and see" 
I'd need to know exactly what your plans are, what things you use are 
package managed vs self installs, what exactly those "few modules" are 
(and what they depend on) etc. Even then, all anyone can say is a best 
guess - it's not like RG7.2 -> FC4 is a common upgrade.

Oh, any chance you can turn off the HTML crud your mail client attaches? 
It doesn't even do it correctly (multipart/alternative MIME) so it shows 
up even in clients that know about HTML email.

--
Craig Ringer
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