Date: Mon, 24 Feb 1997 13:04:27 -0800 From: "Jordan K. Hubbard" <jkh@time.cdrom.com> To: Chris Shenton <cshenton@it.hq.nasa.gov> Cc: hackers@FreeBSD.ORG Subject: Re: migrating 2.1.7 -> 2.2: simple or hairy? Message-ID: <1610.856818267@time.cdrom.com> In-Reply-To: Your message of "Mon, 24 Feb 1997 14:16:13 EST." <199702241916.TAA13136@wirehead.it.hq.nasa.gov>
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> We've got a number of boxes running 2.1.7 and want to migrate to 2.2; > is it easy or hard? It depends on how many short-cuts you try to take. :-) Seriously, until there are better transition tools available which radically compare checksum information and try to tell you exactly what was added and what was deleted twixt the two releases (and that's all part of my next project), the most dependable upgrade path is to back up user files or make sure they're always kept on OS-neutral partitions (so you can simply mount rather than newfs those filesystems next time around - I do this all the time) and do a complete reinstallation. I know it sounds painful, but once you get the procedure down to a science it's really not that bad, and the benefits are that you're *sure* you haven't got old-library pollution or out-of-date /etc files or any of the other 101 weird behavior quirks that an update-by-source (or even update-by-upgrade) machine can exhibit. Look at it as a little extra pain up-front in exchange for avoiding it at later, less convenient times. :-) Jordan > > Ideally I could do: > > mv /usr/src /usr/src.old > cvsup <whatever>-supfile [whatever's appropriate for 2.2] > cd /usr/src > make world > make install > > In the past, I've had problems trying to do this: libraries became out > of sync and the make, cc, and other failed, leaving me with an > unusable system. > > Also, which cvsup files are appropriate? I've been tracking 'stable', > which gives me 2.1.7. Does 'current' give me 2.2 or 3.0? Which would > be appropriate? > > Any other pointers, like maybe building in a separate /usr/src-new > tree? > > Thanks. > >
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