best overall upgrade from 8.x?

[Chris H]

On Mon, 17 Nov 2014 22:13:11 -0800 Kevin Oberman <rkoberman at gmail.com> wrote

> This is a bit nit-picky, but... (in-line)
> 
> NOTE personal experience indicates that regression issues introduced
> > by pkg(8), makes >=8.3-* the minimum starting point. YMMV
> >
> > I have used the following for ~10yrs. w/o issue (comments added for
> > *hopeful* clarity).
> >
> > The IMMEDIATELY following, is only relevant RE-building world/kernel:
> > cd /usr/obj
> > chflags -R noschg *
> > rm -rf *
> >
> >
> > cd /usr/src
> > make buildworld
> >
> > NOTES:
> > SINGLE CPU: make -j4 buildworld
> >
> > NOTE:
> > MULTI CPU: make -j(6 through ??) buildworld
> >
> > # pre version 9
> > make kernel-toolchain
> >
> > make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=<your_kernel_name_here>
> >
> I would add -jN to this using the same value for 'N' as used for buildworld
> 
> make -DALWAYS_CHECK_MAKE installkernel KERNCONF=<your_kernel_name_here>
> >
> > reboot (in single user mode)
> >
> > fsck -p (optional, but a good idea)
> > mount -u /
> >
> Redundant before the fact as the next command (mount -a -t ufs) does this,
> too
> 
> mount -a -t ufs
> > swapon -a (most cases; optional)
> >
> > adjkerntz -i (not always necessary, but DO check current time/date, just in
> > case)
> >
> In more fetail, if the hardware clock is UTC, this is not required. If
> /etc/wall_cmos_clock exists, this is needed, but you really should do it
> BEFORE mounting disks. UPDATING shows it right after the fsck. It avoids
> any possibility of something being time-stamped in the future.
> 
> >
> > mergemaster -p
> >
> This is way, way to late. On at least one case, this would have lead to a
> very awkward failure of installworld. The man page is explicit that it
> should be run before buildworld. This is the only thing in this that is
> really, really wrong and can lead to a recoverable, but very annoying
> failure.
10yrs. and a few thousand installs, says otherwise... BUT, the
more I know, the more I know I don't know. :)
> 
> 
> >
> > cp -Rp /etc /etc.old
> >
> Not really needed, but good for the "belt and braces" type.
Yes. Just like recent dump(8)'s. ;)
> 
> >
> > cd /usr/src
> >
> > make installworld
> >
> > mergemaster -F
> > or mergemaster -vF (my personal choice)
> > or mergemaster -cvF
> >
> > make delete-old
> >
> This can be a bit painful as you are prompted for every file. I suggest
> "make check-old" and then "rm -rf" any directories listed as ready for
> deletion. direcctories are listed near the end, just before libs.
> 
> >
> > reboot
> >
> > HTH
> >
> > --Chris
> >
> --
> R. Kevin Oberman, Network Engineer, Retired
> E-mail: rkoberman at gmail.com

--Chris