[CentOS] Upgrade Question

Les Mikesell lesmikesell at gmail.com
Wed Jan 11 01:19:32 UTC 2012


On Tue, Jan 10, 2012 at 3:35 PM,  <m.roth at 5-cent.us> wrote:
> >>
>>> What we do is build one, then create /boot/new and /new on the next
>>> server, rsync over to them, then mkdir /boot/old and /old, and (using
>>> zsh with modules loaded) mv * old, mv old/lost+found ., mv
>>> old/new/* ., make sure a few things are correct (for example,
>>> ifcfg-eth*, /etc/ssh/), and sync, then reboot. All your other stuff is
>>> fine....
>>
>> Have you looked at http://rear.sourceforge.net/ (and in EPEL) as a
>> potential backup/clone/rollout mechanism?  It seems like something
> <snip>
> The one difference with the method we use is that you *don't* have to
> format /, and so anything you have under it is still safe. We normally
> have a few directories that are local, and so need to be saved (web, a
> temp that everyone can use that is guaranteed *not* to go away, etc).

But that also means you don't get to re-arrange your filesystem layout
to set up a bigger /boot, change filesystem types, or fix something
you've learned could be better in the years of running the previous
version.

-- 
  Les Mikesell
    lesmikesell at gmail.com



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