Date: Mon, 13 Mar 2006 22:04:59 -0700 (MST) From: "M. Warner Losh" <imp@bsdimp.com> To: eculp@bafirst.com Cc: current@freebsd.org Subject: Re: Gotchas to Downgrade from 7.0-CURRENTto FreeBSD 6.1-PRERELEASE Message-ID: <20060313.220459.78708566.imp@bsdimp.com> In-Reply-To: <20060313155744.worp8zmh8g4g0o8w@mail.bafirst.com> References: <20060311213529.epb13ogpggk00ws0@mail.bafirst.com> <20060313.092741.68569270.imp@bsdimp.com> <20060313155744.worp8zmh8g4g0o8w@mail.bafirst.com>
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In message: <20060313155744.worp8zmh8g4g0o8w@mail.bafirst.com>
eculp@bafirst.com writes:
: Quoting "M. Warner Losh" <imp@bsdimp.com>:
:
: > In message: <20060311213529.epb13ogpggk00ws0@mail.bafirst.com>
: > eculp@bafirst.com writes:
: > : I've lost track a bit of the differences between current and
: > : 6.1-prerelease. I don't remember anything major that would cause
: > : problems. Does anyone know of a potential gotcha or have suggestions
: > : the smooth the pathe or has done this since the freeze?
: > :
: > : The machine that I am going to downgrade is my wife's and I don't
: > : really want to recompile roughly 540 ports that are installed but . . .
: > : , if need be . . . . ;) Problems with the linuxpluginwrapper port in
: > : current started this. She likes to have her flash and pdf in the
: > : browser even though all the other plugins that she uses work. I think
: > : she will probably prefer the stability of RELENG_6 in the long run.
: >
: > There are two areas where there will be problems. First is shared
: > libraries. Many of them have, iirc, been bumped in -current. Be
: > careful here.
: >
: > Second, there may be kernel issues where while doing the downgrade you
: > could hose yourself. Esp in the area of mounting /.
: >
: > My suggestion is do the following for the downgrade (this order is
: > different than a normal upgrade, and really isn't supported, so #2
: > below is extra important):
: >
: > (1) Buildworld of RELENG_6
: > (2) full dump, or cope w/o.
: > (3) installworld of RELENG_6 Yes, before install kernel
: > (4) install kernel
: > (5) reboot
: > (6) find all the shared libraries whose version has gone
: > backwards using ls -l and comparing times. Delete new
: > versions. They may interfere with new port building
: > (7) Rebuild all ports from scratch. Maybe consider installing
: > them from packages, or at least the portupgrade series.
: > make sure you force a recompile of all ports via portupgrade.
: >
: > If, at any point after #2 you are hozed, fall back to #2 and try
: > again. Alternatively, do a fresh install after #2 and grab your data
: > files from step #2. Build everything you need.
: >
: > : thanks for your warnings, observations and suggestions,
: >
: > I've done this half way between 6.0-RELEASE and today with a -current
: > that was a little too green for the hardware it was on. I was anal
: > beyond belief to make sure that nothing from the date of the last
: > -current install was left on the system after I was done. The above
: > is from memory, and your milage may vary.
:
: Warner, thanks for confirming my concerns. I'm going to give it a try
: and if it doesn't work, I'll just do a clean install and rebuild the
: ports. That almost sounds like the best idea, more than anything else,
: for housecleaning but less fun ;).
It is a point of pride with me that I never resort to a binary
install. However, it is often the best thing to do, my hubris
notwithstanding.
Warner
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