Welcome to the most active Linux Forum on the web.
Go Back > Forums > Linux Forums > Linux - Software
User Name
Linux - Software This forum is for Software issues.
Having a problem installing a new program? Want to know which application is best for the job? Post your question in this forum.


  Search this Thread
Old 08-20-2007, 11:51 AM   #1
Registered: Jun 2006
Location: Maine, USA
Distribution: Kubuntu 8.10/Debian Lenny
Posts: 30

Rep: Reputation: 15
Question Upgrade a 32 bit Debian install to 64 bit

I was wondering if anyone had any experience with converting a 32 bit Debian install to a 64 bit one.

This is on a server at work, and I cannot afford too much downtime. When installing before, I was incorrectly informed of the machine's specs. I know that I should have done more investigating, but hindsight is 20/20.

The 32 bit version is running okay, but I am running into an issue where I really need the 64 bit stuff installed.

This server is running Apache 2.2, MySQL 5, PHP 5, and Bind.

Are there any pitfalls I should be wary of? Is there any advice that one could give me in this instance? I really would prefer to avoid a total reinstall but will do so if necessary.

Thanks for any help!
Old 08-20-2007, 12:35 PM   #2
LQ Guru
Registered: Aug 2003
Distribution: CentOS, OS X
Posts: 5,131

Rep: Reputation: Disabled
Though I don't use 64-bit machines myself (for the desktop use they still have too much trouble, non-working software/programs lacking 64-bit support, ...), I don't think you should (or if it's even possible) try to "upgrade it to 64-bit". Even if that was possible, I'm sure the downtime is much longer than if you just did a clean install. You have backups, or should if it's a server, but make as recent ones as you can, copy your server's configuration files to a safe place and do a fresh install. Or better yet, you should have an identical machine for testing (production machines should have a "clone" test machine, on which upgrades can be tested before hurting the main machine) and do the install on that first and see if it even helps. I don't recommend upgrading a working server from 32-bit OS to 64, unless it is really really really needed. Don't fix a working thing. What is it that doesn't work without a 64-bit OS?

Just a friendly advice, if you insist on upgrading the system, and especially if you insist on doing that without a complete clean reinstall (formatting etc.), you are going to trash the server and have a very long downtime fixing it.

EDIT: unless, of course, you're very good in it - but if you were, you probably wouldn't be asking. So I assume you haven't done it before, and therefore should try to stick with methods that work.

Last edited by b0uncer; 08-20-2007 at 12:36 PM. Reason: ps
Old 08-20-2007, 01:09 PM   #3
Senior Member
Registered: Mar 2003
Location: Nova Scotia, Canada
Distribution: Debian AMD64
Posts: 3,591

Rep: Reputation: 96
There is no upgrade path from 32 to 64 bits it needs a re-install you can use dpkg --get-selections > packages.txt on the old machine to get the packages installed then once on the new install dpkg --set-selections < packages.txt to set them for upgrade then apt-get dselect-upgrade to have them installed and of course if you have backed up your /etc/ and /var directories you should be able to restore them to get the config files and data installed on the new machine.
Old 08-20-2007, 02:05 PM   #4
Registered: Jun 2006
Location: Maine, USA
Distribution: Kubuntu 8.10/Debian Lenny
Posts: 30

Original Poster
Rep: Reputation: 15
The software that is not working is a proprietary piece from AcuCorp (yes - a provider of COBOL ) that allows database-style access to data files on another server. This software is pre-compiled for a specific architecture and glibc version. I have been running into a couple of other issues, also.

Everything is backed up.

*cracks knuckles*

Time to get down and dirty and relay the news to the boss when I get back from vacation.

Thanks for the help guys/gals!

Last edited by buggabill; 08-20-2007 at 02:06 PM.


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
LXer: Running 32-bit Applications on 64-bit Debian GNU/Linux LXer Syndicated Linux News 2 01-06-2010 12:26 PM
Upgrade from 32 bit to 64 bit (FC5 to FC6) ocgltd Fedora 1 11-05-2006 06:03 PM
Upgrade SuSE 9.3 32 bit to 64 bit bigrigdriver SUSE / openSUSE 3 05-19-2006 09:10 PM
32 bit or 64 bit install - is 32 bit easier for a newbie? dms05 Linux - Newbie 3 05-19-2006 03:05 PM
Which version of 32 bit redhat will install on IBM xSeries 366 (64 bit)? Hello123 Linux - Hardware 2 09-14-2005 05:50 AM > Forums > Linux Forums > Linux - Software

All times are GMT -5. The time now is 04:34 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration