Date: Thu, 23 Sep 2004 19:16:57 -0700 From: Dariusz Kulinski <takeda@takeda.tk> To: freebsd-stable@freebsd.org Subject: Re: upgrade questions 4.10 -> 5-stable Message-ID: <83874859.20040923191657@takeda.tk> Resent-Message-ID: <200409240216.i8O2GvBI089212@freebsd.takeda.tk>
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Hello Bruce, Thursday, September 23, 2004, 8:54:19 AM, you wrote: >> What about directories that I definitively shouldn't restore, for >> example: >> /usr/include /usr/lib most likely /bin /sbin /usr/bin /usr/sbin /stand >> and so on, maybe that could help me better. > Here's the deal. For any of the systems I maintain, I wouldn't > restore any of these from backups after a source upgrade because in > general, those directories contain *only* files installed from the > base system. But how can I tell how *you* have *your* system set up? Well, I'm avoiding to change anything in system files, and all additional stuff I'm actually putting in /usr/local. I'm interested about directories that are changed by system/system programs - I belive most confusing is /var in theory there shouldn't be anything important there (well except logs), but I already noticed there is mail, crontab jobs, informations what ports were installed even mysql port install database there. >> That step was in source upgrade category, so I assumed it might not >> be correct for binary upgrade. > You *asked* about the source upgrade procedure above. I'm sorry, I see now. I wrote one thing but I was thinking about another. I meant binary upgrade, sorry for the confusion. > For binary upgrades, it's probably best to carefully examine the files > in your backups and merge the changes in by hand. After a binary > install, the old files will be gone, so there won't be anything for > mergemaster to operate on. Yes that's true, but using mergemaster is less work. And I still have old files in backup. > Good candidates for merging are: /etc/passwd, /etc/group, and > /etc/rc.conf. Don't just blindly drop in your backup files. So I see next step - selecting which files from /etc are needed to be restored. >> What about ports, I know that I need to recompile them, but will they >> work for that time? > We believe that most ports will work if you install the compat4x > libraries and don't upgrade anything. But there's a few that *need* > to be upgraded, due to changes in the statfs structure. Also if > you're going to upgrade ports in the future, it's probably safest to > reinstall all ports. I see >> It's not really mission-critical, but it's like that for me :) >> It works as my mail/web server so I want to have shortest downtime >> possible :) > Then you want to take your time and do things carefully so that you > don't have a longer downtime caused by screwing up the upgrade. I've > had this happen more times than I can count (not on FreeBSD, but the > experience applies). Thank you very much for your tips on upgrading. -- Best regards, Dariusz mailto:takeda@takeda.tk CCNA, SCSA, SCNA, LPIC, MCP certified http://www.takeda.tk
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