Stable and current on same harddrive?

[Michael]

On Wed, Oct 14, 2009 at 10:02:13AM -0400, Josh Grosse wrote:
> On Wed, 14 Oct 2009 07:48:41 -0600, Michael wrote
> > When 4.6 is released, I'll be upgrading my system to it. 
> > I am curious if it is possible to run 4.6 and current on the same harddrive?
> > I would like to play with current for learning. I thought I read 
> > somewhere about doing that, but can't find the info. I've searched 
> > Marc, the faq, daemonforums, but can't find it. Maybe I'm using the 
> > wrong words in my search?
> > 
> > Thanks
> 
> Keep in mind, there may only be a single "A6" MBR partition on a hard drive,
> so, while using MBR partitions is one way of doing this, management of it can
> be convoluted.
> 
> I have set up multiple OpenBSD systems, allowing me to boot one or the other.
>  My method has been to set up the complete test environment in its own
> -disklabel- partition, and select it at the boot> prompt.
> 
> Note: the installation script expects to use the "a" partition for
> installation.  You can either modify the install script, or just relabel the
> production system's "a" partition prior to installation.  This can be done
> with disklabel -e and an $EDITOR.  Don't relabel your existing "a" partition
> while it is mounted read/write, of course.
> 
> 
> Once installed, it is easy enough to alter the test system's /etc/fstab boot
> and reset the partitions back to normal with disklabel -e, once more.
> 
> Booting the test system is as easy as:
> 
> boot> hd0p:/bsd -a
> 
> Then, when prompted for the root partition to mount, type "wd0p".


Thank-you again, Josh. I might have an extra hd to play with. If so, I'll try installing a "base" system of each and make it work like you suggested. That way, I won't hose my main system ;)

Mike
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