Date: Mon, 4 Feb 2002 23:53:15 -0500 (EST) From: Chris BeHanna <behanna@zbzoom.net> To: FreeBSD-Stable <stable@freebsd.org> Subject: Re: Two FBSD slices on one disk - losing mountpoints? Message-ID: <20020204234854.L77182-100000@topperwein.dyndns.org> In-Reply-To: <20020202050938.A9135@sheol.localdomain>
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On Sat, 2 Feb 2002, D J Hawkey Jr wrote:
>
> After reading the 4.5 Handbook, and searching with Google and FBSD's own
> engines, I cannot find anything to soothe my apprehension about what I see:
>
> I have FBSD on ad0s2. I want FBSD 4.5-REL on ad0s1. 'fdisk' is no problem,
> and neither is 'disklabel', EXCEPT that as I create the [FBSD] partitions
> in ad0s1, the mountpoints in the existing ad0s2 disappear, and 'disklabel'
> tells me I already have such-and-such mountpoint when I try to re-mount
> the partitions in ad0s2.
>
> I'm talking about using 'sysinstall' on a booted 4.5-REL install CD, not
> the command-line 'disklabel'.
>
> My question is: By creating new partitions in ad0s1, am I really losing
> the existing mountpoints in ad0s2? If so, how do I restore 'em? Or am I
> missing something fundamental here?
The partitions should still be there, but you'll have trouble
mounting a partition of the same name on top of an already-mounted
partition.
Try this:
When you boot from ad0s1, mount the ad0s2 partitions under /disk2.
When you boot from ad0s2, mount the ad0s1 partitions under /disk1.
This implies differing fstabs in ad0s1 and ad0s2. No biggie.
It's been awhile since I used sysinstall's disklabel. If you can
mark a partition to not be mounted automatically, do it on the
partition you're not about to boot. Then you can edit /etc/fstab by
hand in ad0s1, mkdir /disk2, and mount the ad0s2 partitions under
/disk2. Then edit /disk2/etc/fstab and do the same for ad0s1 and
/disk1, as suggested above.
Worst case, boot from the live filesystem and fix the stuff by
hand on-the-fly (bitter PITA when moving your boot device from the
onboard controller to a Promise card, let me tell you!).
--
Chris BeHanna
Software Engineer (Remove "bogus" before responding.)
behanna@bogus.zbzoom.net
I was raised by a pack of wild corn dogs.
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