Date: Sat, 2 Feb 2002 07:29:01 -0600 From: D J Hawkey Jr <hawkeyd@visi.com> To: Michael Lucas <mwlucas@blackhelicopters.org> Cc: David Wolfskill <david@catwhisker.org>, questions at FreeBSD <freebsd-questions@FreeBSD.ORG> Subject: Re: Two FBSD slices on one disk - losing mountpoints? Message-ID: <20020202072901.A9696@sheol.localdomain> In-Reply-To: <20020202072233.A27220@blackhelicopters.org>; from mwlucas@blackhelicopters.org on Sat, Feb 02, 2002 at 07:22:33AM -0500 References: <20020201071356.A482@sheol.localdomain> <20020202063656.A26864@blackhelicopters.org> <20020202060715.A9390@sheol.localdomain> <20020202072233.A27220@blackhelicopters.org>
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*sigh*
The further I go, the behinder I get. I'm re-arranging your reply a
little here...
On Feb 02, at 07:22 AM, Michael Lucas wrote:
>
> On Sat, Feb 02, 2002 at 06:07:15AM -0600, D J Hawkey Jr wrote:
>
> > > This will give you the necessary warm fuzzies to know you aren't
> > > blowing up your system.
> > Then, after installation in ad0s1 is done and it's running, re-'disklabel'
> > the partitions in ad0s2 to their proper names?
>
> I gathered from your original message that you wanted two separate
> installs of FreeBSD on this one disk. Is this not the case?
Right! That's where I'm even more confused now...
> > > You cannot have two mount points of the same name at the same time. Try this:
> > > unmount ad0s2a / ; remount ad0s2a / as oldroot
> > > unmount ad0s2f /usr ; remount ad0s2f /oldusr
> > > umount ad0s2e /var ; remount ad0s2e /oldvar
> >
> > You mean while running FBSD in ad0s2, or while in 'sysinstall' on booting
> > the 4.5-REL install CD?
>
> While booting the 4.5 CD.
>
> [SNIP]
>
> You will also want to be sure to "toggle newfs" off on these existing
> partitions, so that the new install doesn't overwrite them! Gah, I
> haven't had coffee either!
:-)
This I already gathered. Make sure that "Y" in the "Newfs" column is set
only in ad0s1's (the new slice's) partitions.
> You cannot have two like-named partitions in a single OS instance.
But I can have two like-named partitions (we both mean "mountpoints" here)
across different slices?
--------------
GAAAAA... gasp gasp...
OK, let me re-cap, and then tell me where I'm wrong:
- Boot the 4.5-REL CD, and [re-]allocate a slice for the new install
in 'fdisk'. Leave all other slices as they are.
- Move on to 'disklabel', and set up the new partitions in that new
slice. Whether 'disklabel' forces me to 'cuz I've allocated new
like-named mountpoints, or I pre-empt that limitation, re-name the
mountpoints of existing FBSD slice's partitions to something else.
Per a reply from David Wolfskill, mnemonics like "/S2", "/S2/usr"
for the second slice's mountpoints keeps things organised (**1).
- Make certain the "Y" in the "newfs" column is set only in the new
slice's partitions (**2).
- Close my eyes and pray as I commit these changes.
(**1) These mountpoint names are written to the new slice's /etc/fstab
only; in any other existing FBSD slice, I have to manually add
this new slice's partitions and mountpoints, as "/S1", etc., to
the existing slice's /etc/fstab.
(**2) This is the only thing that governs what slice and partition
'sysinstall' deals with? Or do mountpoint names play a role, too?
> No problem, hope this helps.
Sorry to be so thick-headed and anal. I'm one of those people that need
to see the big picture in order to work on a little piece of it.
> Michael Lucas
Dave
--
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